/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:52:30,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:52:30,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:52:30,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 01:52:30,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:52:30,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:52:30,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:52:30,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:52:30,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:52:30,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:52:30,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:52:30,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:52:30,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:52:30,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:52:30,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:52:30,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:52:30,470 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:52:30,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:52:30,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:52:30,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:52:30,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:52:30,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:52:30,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:52:30,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:52:30,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:52:30,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:52:30,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:52:30,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:52:30,500 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 01:52:30,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:52:30,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:52:30,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:52:30,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:52:30,528 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:52:30,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:52:30,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:52:30,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:52:30,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:52:30,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:52:30,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:52:30,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:52:30,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:52:30,530 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:52:30,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:52:30,531 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:52:30,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:52:30,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:52:30,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:52:30,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:52:30,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:52:30,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:52:30,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:52:30,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:52:30,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:52:30,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:52:30,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:52:30,533 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:52:30,533 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:52:30,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 01:52:30,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:52:30,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:52:30,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:52:30,886 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:52:30,886 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:52:30,887 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-20 01:52:30,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af9df768/61920ff68bb34310add1fed191cdbee0/FLAG50c35bee0 [2020-07-20 01:52:31,359 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:52:31,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-20 01:52:31,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af9df768/61920ff68bb34310add1fed191cdbee0/FLAG50c35bee0 [2020-07-20 01:52:31,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af9df768/61920ff68bb34310add1fed191cdbee0 [2020-07-20 01:52:31,798 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:52:31,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:52:31,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:52:31,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:52:31,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:52:31,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:52:31" (1/1) ... [2020-07-20 01:52:31,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eba8892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:31, skipping insertion in model container [2020-07-20 01:52:31,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:52:31" (1/1) ... [2020-07-20 01:52:31,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:52:31,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:52:31,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:52:31,997 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:52:32,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:52:32,027 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:52:32,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32 WrapperNode [2020-07-20 01:52:32,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:52:32,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:52:32,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:52:32,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:52:32,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... [2020-07-20 01:52:32,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... [2020-07-20 01:52:32,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... [2020-07-20 01:52:32,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... [2020-07-20 01:52:32,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... [2020-07-20 01:52:32,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... [2020-07-20 01:52:32,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... [2020-07-20 01:52:32,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:52:32,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:52:32,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:52:32,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:52:32,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:52:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:52:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:52:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 01:52:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 01:52:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 01:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 01:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 01:52:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 01:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:52:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:52:32,469 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:52:32,469 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 01:52:32,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:52:32 BoogieIcfgContainer [2020-07-20 01:52:32,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:52:32,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:52:32,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:52:32,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:52:32,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:52:31" (1/3) ... [2020-07-20 01:52:32,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565ca5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:52:32, skipping insertion in model container [2020-07-20 01:52:32,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:52:32" (2/3) ... [2020-07-20 01:52:32,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565ca5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:52:32, skipping insertion in model container [2020-07-20 01:52:32,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:52:32" (3/3) ... [2020-07-20 01:52:32,498 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2020-07-20 01:52:32,521 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:52:32,540 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:52:32,552 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:52:32,574 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:52:32,574 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:52:32,574 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:52:32,574 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:52:32,575 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:52:32,575 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:52:32,575 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:52:32,575 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:52:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-20 01:52:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 01:52:32,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:32,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:32,601 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:32,608 INFO L82 PathProgramCache]: Analyzing trace with hash 651998901, now seen corresponding path program 1 times [2020-07-20 01:52:32,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:32,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820418853] [2020-07-20 01:52:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:52:32,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820418853] [2020-07-20 01:52:32,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:52:32,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 01:52:32,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312399395] [2020-07-20 01:52:32,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 01:52:32,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:32,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 01:52:32,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:52:32,845 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2020-07-20 01:52:32,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:32,934 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2020-07-20 01:52:32,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 01:52:32,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-20 01:52:32,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:32,944 INFO L225 Difference]: With dead ends: 40 [2020-07-20 01:52:32,944 INFO L226 Difference]: Without dead ends: 21 [2020-07-20 01:52:32,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 01:52:32,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-20 01:52:32,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-07-20 01:52:32,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-20 01:52:32,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-07-20 01:52:32,985 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2020-07-20 01:52:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:32,986 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-07-20 01:52:32,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 01:52:32,986 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-07-20 01:52:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-20 01:52:32,987 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:32,988 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:32,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:52:32,988 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:32,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:32,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1822329080, now seen corresponding path program 1 times [2020-07-20 01:52:32,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:32,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570510933] [2020-07-20 01:52:32,990 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:52:33,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570510933] [2020-07-20 01:52:33,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914718501] [2020-07-20 01:52:33,084 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2410b235 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:33,125 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2410b235 issued 4 check-sat command(s) [2020-07-20 01:52:33,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:33,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 01:52:33,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:33,168 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:33,200 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:52:33,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:33,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-07-20 01:52:33,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000890827] [2020-07-20 01:52:33,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 01:52:33,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:33,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 01:52:33,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:52:33,205 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 8 states. [2020-07-20 01:52:33,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:33,274 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-07-20 01:52:33,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 01:52:33,274 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-07-20 01:52:33,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:33,276 INFO L225 Difference]: With dead ends: 30 [2020-07-20 01:52:33,276 INFO L226 Difference]: Without dead ends: 28 [2020-07-20 01:52:33,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-07-20 01:52:33,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-20 01:52:33,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-07-20 01:52:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-20 01:52:33,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-07-20 01:52:33,285 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2020-07-20 01:52:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:33,285 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-07-20 01:52:33,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 01:52:33,286 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-20 01:52:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-20 01:52:33,287 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:33,287 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:33,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 01:52:33,502 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:33,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:33,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1510359893, now seen corresponding path program 2 times [2020-07-20 01:52:33,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:33,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112893110] [2020-07-20 01:52:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 01:52:33,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112893110] [2020-07-20 01:52:33,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760262970] [2020-07-20 01:52:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c9fac1e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:33,661 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c9fac1e issued 4 check-sat command(s) [2020-07-20 01:52:33,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:33,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 01:52:33,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:33,687 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:33,720 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 01:52:33,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:33,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-07-20 01:52:33,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607461669] [2020-07-20 01:52:33,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 01:52:33,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:33,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 01:52:33,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-20 01:52:33,724 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 9 states. [2020-07-20 01:52:33,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:33,805 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-07-20 01:52:33,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 01:52:33,806 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-07-20 01:52:33,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:33,808 INFO L225 Difference]: With dead ends: 37 [2020-07-20 01:52:33,808 INFO L226 Difference]: Without dead ends: 35 [2020-07-20 01:52:33,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-20 01:52:33,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-20 01:52:33,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-07-20 01:52:33,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-20 01:52:33,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-07-20 01:52:33,816 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 24 [2020-07-20 01:52:33,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:33,817 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-07-20 01:52:33,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 01:52:33,817 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-07-20 01:52:33,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 01:52:33,818 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:33,818 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:34,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:34,033 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:34,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:34,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1096709736, now seen corresponding path program 3 times [2020-07-20 01:52:34,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:34,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679557525] [2020-07-20 01:52:34,035 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,125 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 01:52:34,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679557525] [2020-07-20 01:52:34,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457062968] [2020-07-20 01:52:34,126 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6583c492 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:34,164 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6583c492 issued 4 check-sat command(s) [2020-07-20 01:52:34,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:34,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 01:52:34,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:34,179 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-20 01:52:34,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:34,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-07-20 01:52:34,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163845912] [2020-07-20 01:52:34,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 01:52:34,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:34,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 01:52:34,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 01:52:34,210 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 10 states. [2020-07-20 01:52:34,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:34,289 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2020-07-20 01:52:34,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 01:52:34,291 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-07-20 01:52:34,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:34,292 INFO L225 Difference]: With dead ends: 44 [2020-07-20 01:52:34,292 INFO L226 Difference]: Without dead ends: 42 [2020-07-20 01:52:34,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-20 01:52:34,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-20 01:52:34,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-07-20 01:52:34,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-20 01:52:34,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-07-20 01:52:34,301 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 31 [2020-07-20 01:52:34,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:34,302 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-07-20 01:52:34,302 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 01:52:34,302 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-07-20 01:52:34,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-20 01:52:34,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:34,304 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:34,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:34,519 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:34,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:34,519 INFO L82 PathProgramCache]: Analyzing trace with hash 2024617973, now seen corresponding path program 4 times [2020-07-20 01:52:34,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:34,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140151239] [2020-07-20 01:52:34,520 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:34,622 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 01:52:34,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140151239] [2020-07-20 01:52:34,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170189552] [2020-07-20 01:52:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75e05594 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:34,656 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75e05594 issued 4 check-sat command(s) [2020-07-20 01:52:34,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:34,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 01:52:34,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:34,671 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 01:52:34,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:34,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-07-20 01:52:34,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699498485] [2020-07-20 01:52:34,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 01:52:34,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:34,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 01:52:34,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-20 01:52:34,696 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 11 states. [2020-07-20 01:52:34,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:34,781 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-07-20 01:52:34,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 01:52:34,781 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-07-20 01:52:34,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:34,783 INFO L225 Difference]: With dead ends: 51 [2020-07-20 01:52:34,783 INFO L226 Difference]: Without dead ends: 49 [2020-07-20 01:52:34,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:52:34,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-20 01:52:34,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2020-07-20 01:52:34,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-20 01:52:34,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2020-07-20 01:52:34,792 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 38 [2020-07-20 01:52:34,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:34,793 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2020-07-20 01:52:34,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 01:52:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2020-07-20 01:52:34,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 01:52:34,794 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:34,795 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:35,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:35,009 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:35,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:35,010 INFO L82 PathProgramCache]: Analyzing trace with hash 125373896, now seen corresponding path program 5 times [2020-07-20 01:52:35,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:35,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855919801] [2020-07-20 01:52:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-20 01:52:35,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855919801] [2020-07-20 01:52:35,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789708604] [2020-07-20 01:52:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48f432ef No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:35,165 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48f432ef issued 4 check-sat command(s) [2020-07-20 01:52:35,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:35,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 01:52:35,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:35,182 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-20 01:52:35,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:35,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-07-20 01:52:35,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724232505] [2020-07-20 01:52:35,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 01:52:35,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:35,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 01:52:35,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:52:35,219 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 12 states. [2020-07-20 01:52:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:35,308 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2020-07-20 01:52:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 01:52:35,310 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-07-20 01:52:35,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:35,311 INFO L225 Difference]: With dead ends: 58 [2020-07-20 01:52:35,312 INFO L226 Difference]: Without dead ends: 56 [2020-07-20 01:52:35,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-07-20 01:52:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-20 01:52:35,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2020-07-20 01:52:35,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-20 01:52:35,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-07-20 01:52:35,322 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 45 [2020-07-20 01:52:35,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:35,323 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-07-20 01:52:35,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 01:52:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-07-20 01:52:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 01:52:35,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:35,326 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:35,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-20 01:52:35,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:35,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:35,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1195086997, now seen corresponding path program 6 times [2020-07-20 01:52:35,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:35,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060797940] [2020-07-20 01:52:35,543 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:35,706 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-20 01:52:35,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060797940] [2020-07-20 01:52:35,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692868227] [2020-07-20 01:52:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@58be4926 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:35,745 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@58be4926 issued 4 check-sat command(s) [2020-07-20 01:52:35,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:35,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 01:52:35,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:35,761 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:35,787 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-20 01:52:35,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:35,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-07-20 01:52:35,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23067939] [2020-07-20 01:52:35,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 01:52:35,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:35,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 01:52:35,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-20 01:52:35,789 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 13 states. [2020-07-20 01:52:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:35,877 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-07-20 01:52:35,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-20 01:52:35,878 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-07-20 01:52:35,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:35,879 INFO L225 Difference]: With dead ends: 65 [2020-07-20 01:52:35,879 INFO L226 Difference]: Without dead ends: 63 [2020-07-20 01:52:35,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-20 01:52:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-20 01:52:35,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2020-07-20 01:52:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-20 01:52:35,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2020-07-20 01:52:35,889 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 52 [2020-07-20 01:52:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:35,889 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2020-07-20 01:52:35,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 01:52:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2020-07-20 01:52:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 01:52:35,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:35,891 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:36,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:36,106 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:36,106 INFO L82 PathProgramCache]: Analyzing trace with hash 906444072, now seen corresponding path program 7 times [2020-07-20 01:52:36,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:36,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617089526] [2020-07-20 01:52:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,226 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 01:52:36,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617089526] [2020-07-20 01:52:36,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082612033] [2020-07-20 01:52:36,227 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ffbcb10 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:36,271 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ffbcb10 issued 4 check-sat command(s) [2020-07-20 01:52:36,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:36,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 01:52:36,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:36,306 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 01:52:36,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:36,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2020-07-20 01:52:36,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412543922] [2020-07-20 01:52:36,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-20 01:52:36,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:36,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-20 01:52:36,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-07-20 01:52:36,336 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 14 states. [2020-07-20 01:52:36,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:36,444 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-07-20 01:52:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 01:52:36,444 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-07-20 01:52:36,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:36,446 INFO L225 Difference]: With dead ends: 72 [2020-07-20 01:52:36,446 INFO L226 Difference]: Without dead ends: 70 [2020-07-20 01:52:36,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-20 01:52:36,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-20 01:52:36,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-07-20 01:52:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-20 01:52:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-07-20 01:52:36,456 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 59 [2020-07-20 01:52:36,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:36,456 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-07-20 01:52:36,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-20 01:52:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-07-20 01:52:36,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-20 01:52:36,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:36,458 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:36,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:36,672 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:36,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:36,673 INFO L82 PathProgramCache]: Analyzing trace with hash -2003085003, now seen corresponding path program 8 times [2020-07-20 01:52:36,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:36,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598823706] [2020-07-20 01:52:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 01:52:36,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598823706] [2020-07-20 01:52:36,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237192882] [2020-07-20 01:52:36,811 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48435d0d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:36,863 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48435d0d issued 4 check-sat command(s) [2020-07-20 01:52:36,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:36,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 01:52:36,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:36,881 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 01:52:36,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:36,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2020-07-20 01:52:36,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760654736] [2020-07-20 01:52:36,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-20 01:52:36,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:36,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-20 01:52:36,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-07-20 01:52:36,909 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 15 states. [2020-07-20 01:52:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:37,029 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2020-07-20 01:52:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-20 01:52:37,029 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2020-07-20 01:52:37,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:37,031 INFO L225 Difference]: With dead ends: 79 [2020-07-20 01:52:37,031 INFO L226 Difference]: Without dead ends: 77 [2020-07-20 01:52:37,031 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-20 01:52:37,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-07-20 01:52:37,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-07-20 01:52:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-20 01:52:37,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2020-07-20 01:52:37,040 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 66 [2020-07-20 01:52:37,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:37,041 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2020-07-20 01:52:37,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-20 01:52:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2020-07-20 01:52:37,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-20 01:52:37,042 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:37,042 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:37,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-07-20 01:52:37,256 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:37,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:37,256 INFO L82 PathProgramCache]: Analyzing trace with hash -824245112, now seen corresponding path program 9 times [2020-07-20 01:52:37,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:37,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821422567] [2020-07-20 01:52:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-20 01:52:37,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821422567] [2020-07-20 01:52:37,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87649229] [2020-07-20 01:52:37,398 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a24b692 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:37,440 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a24b692 issued 4 check-sat command(s) [2020-07-20 01:52:37,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:37,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 01:52:37,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:37,459 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:37,487 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-20 01:52:37,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:37,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 16 [2020-07-20 01:52:37,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658324158] [2020-07-20 01:52:37,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 01:52:37,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:37,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 01:52:37,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-07-20 01:52:37,490 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 16 states. [2020-07-20 01:52:37,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:37,612 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2020-07-20 01:52:37,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 01:52:37,613 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-07-20 01:52:37,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:37,614 INFO L225 Difference]: With dead ends: 86 [2020-07-20 01:52:37,614 INFO L226 Difference]: Without dead ends: 84 [2020-07-20 01:52:37,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-07-20 01:52:37,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-20 01:52:37,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2020-07-20 01:52:37,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-20 01:52:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2020-07-20 01:52:37,623 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 73 [2020-07-20 01:52:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:37,624 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2020-07-20 01:52:37,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 01:52:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2020-07-20 01:52:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-07-20 01:52:37,626 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:37,626 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:37,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:37,840 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:37,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1640593963, now seen corresponding path program 10 times [2020-07-20 01:52:37,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:37,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145819504] [2020-07-20 01:52:37,841 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,002 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-20 01:52:38,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145819504] [2020-07-20 01:52:38,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730163096] [2020-07-20 01:52:38,003 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b0dbd6c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:38,045 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b0dbd6c issued 4 check-sat command(s) [2020-07-20 01:52:38,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:38,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 01:52:38,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:38,066 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-20 01:52:38,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:38,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2020-07-20 01:52:38,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847841363] [2020-07-20 01:52:38,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-20 01:52:38,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:38,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-20 01:52:38,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-07-20 01:52:38,107 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 17 states. [2020-07-20 01:52:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:38,227 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2020-07-20 01:52:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 01:52:38,228 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 80 [2020-07-20 01:52:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:38,229 INFO L225 Difference]: With dead ends: 93 [2020-07-20 01:52:38,230 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 01:52:38,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2020-07-20 01:52:38,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 01:52:38,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2020-07-20 01:52:38,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-20 01:52:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2020-07-20 01:52:38,239 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 80 [2020-07-20 01:52:38,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:38,239 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2020-07-20 01:52:38,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-20 01:52:38,240 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2020-07-20 01:52:38,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-20 01:52:38,241 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:38,241 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:38,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:38,455 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:38,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:38,456 INFO L82 PathProgramCache]: Analyzing trace with hash -447323160, now seen corresponding path program 11 times [2020-07-20 01:52:38,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:38,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113583347] [2020-07-20 01:52:38,458 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:38,672 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-20 01:52:38,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113583347] [2020-07-20 01:52:38,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105259513] [2020-07-20 01:52:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45cf274a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:38,727 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45cf274a issued 4 check-sat command(s) [2020-07-20 01:52:38,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:38,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 01:52:38,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:38,759 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-20 01:52:38,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:38,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 18 [2020-07-20 01:52:38,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054600609] [2020-07-20 01:52:38,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-20 01:52:38,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:38,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-20 01:52:38,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-07-20 01:52:38,802 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 18 states. [2020-07-20 01:52:38,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:38,930 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2020-07-20 01:52:38,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 01:52:38,930 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2020-07-20 01:52:38,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:38,931 INFO L225 Difference]: With dead ends: 100 [2020-07-20 01:52:38,932 INFO L226 Difference]: Without dead ends: 98 [2020-07-20 01:52:38,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-07-20 01:52:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-20 01:52:38,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-07-20 01:52:38,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-20 01:52:38,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2020-07-20 01:52:38,940 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 87 [2020-07-20 01:52:38,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:38,941 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2020-07-20 01:52:38,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-20 01:52:38,941 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2020-07-20 01:52:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-20 01:52:38,942 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:38,942 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:39,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-20 01:52:39,156 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:39,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:39,157 INFO L82 PathProgramCache]: Analyzing trace with hash 670505589, now seen corresponding path program 12 times [2020-07-20 01:52:39,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:39,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870216577] [2020-07-20 01:52:39,158 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-07-20 01:52:39,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870216577] [2020-07-20 01:52:39,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577547218] [2020-07-20 01:52:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@42ee9aa1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:39,386 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@42ee9aa1 issued 4 check-sat command(s) [2020-07-20 01:52:39,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:39,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-20 01:52:39,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:39,427 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-07-20 01:52:39,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:39,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2020-07-20 01:52:39,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538932208] [2020-07-20 01:52:39,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-20 01:52:39,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:39,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-20 01:52:39,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-07-20 01:52:39,467 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 19 states. [2020-07-20 01:52:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:39,594 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2020-07-20 01:52:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 01:52:39,595 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 94 [2020-07-20 01:52:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:39,596 INFO L225 Difference]: With dead ends: 107 [2020-07-20 01:52:39,596 INFO L226 Difference]: Without dead ends: 105 [2020-07-20 01:52:39,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-07-20 01:52:39,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-07-20 01:52:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2020-07-20 01:52:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-20 01:52:39,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2020-07-20 01:52:39,604 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 94 [2020-07-20 01:52:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:39,604 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2020-07-20 01:52:39,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-20 01:52:39,604 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2020-07-20 01:52:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-20 01:52:39,605 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:39,606 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:39,806 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-20 01:52:39,807 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:39,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:39,808 INFO L82 PathProgramCache]: Analyzing trace with hash -29140152, now seen corresponding path program 13 times [2020-07-20 01:52:39,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:39,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979026206] [2020-07-20 01:52:39,809 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-20 01:52:40,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979026206] [2020-07-20 01:52:40,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975762275] [2020-07-20 01:52:40,022 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2e211332 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:40,074 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2e211332 issued 4 check-sat command(s) [2020-07-20 01:52:40,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:40,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-20 01:52:40,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:40,092 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:40,132 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-20 01:52:40,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:40,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 20 [2020-07-20 01:52:40,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022665844] [2020-07-20 01:52:40,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-20 01:52:40,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:40,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-20 01:52:40,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-07-20 01:52:40,134 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 20 states. [2020-07-20 01:52:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:40,288 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2020-07-20 01:52:40,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-20 01:52:40,289 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 101 [2020-07-20 01:52:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:40,290 INFO L225 Difference]: With dead ends: 114 [2020-07-20 01:52:40,290 INFO L226 Difference]: Without dead ends: 112 [2020-07-20 01:52:40,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-07-20 01:52:40,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-20 01:52:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-07-20 01:52:40,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-20 01:52:40,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2020-07-20 01:52:40,297 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 101 [2020-07-20 01:52:40,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:40,298 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2020-07-20 01:52:40,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-20 01:52:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2020-07-20 01:52:40,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-20 01:52:40,299 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:40,300 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:40,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-20 01:52:40,514 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:40,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:40,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1538844907, now seen corresponding path program 14 times [2020-07-20 01:52:40,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:40,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486522678] [2020-07-20 01:52:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:40,755 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-07-20 01:52:40,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486522678] [2020-07-20 01:52:40,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288888073] [2020-07-20 01:52:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ba9f5bf No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:40,802 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ba9f5bf issued 4 check-sat command(s) [2020-07-20 01:52:40,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:40,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-20 01:52:40,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:40,820 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:40,866 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-07-20 01:52:40,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:40,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2020-07-20 01:52:40,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706116774] [2020-07-20 01:52:40,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-20 01:52:40,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:40,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-20 01:52:40,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-07-20 01:52:40,869 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 21 states. [2020-07-20 01:52:41,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:41,043 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2020-07-20 01:52:41,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-20 01:52:41,044 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 108 [2020-07-20 01:52:41,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:41,046 INFO L225 Difference]: With dead ends: 121 [2020-07-20 01:52:41,046 INFO L226 Difference]: Without dead ends: 119 [2020-07-20 01:52:41,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2020-07-20 01:52:41,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-20 01:52:41,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2020-07-20 01:52:41,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-20 01:52:41,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2020-07-20 01:52:41,059 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 108 [2020-07-20 01:52:41,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:41,060 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2020-07-20 01:52:41,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-20 01:52:41,060 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2020-07-20 01:52:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-20 01:52:41,063 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:41,064 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:41,277 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:41,278 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:41,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:41,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1878780584, now seen corresponding path program 15 times [2020-07-20 01:52:41,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:41,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972596755] [2020-07-20 01:52:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-20 01:52:41,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972596755] [2020-07-20 01:52:41,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214298729] [2020-07-20 01:52:41,525 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@afc0835 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:41,574 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@afc0835 issued 4 check-sat command(s) [2020-07-20 01:52:41,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:41,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-20 01:52:41,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:41,591 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-20 01:52:41,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:41,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 22 [2020-07-20 01:52:41,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937862684] [2020-07-20 01:52:41,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-20 01:52:41,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:41,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-20 01:52:41,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2020-07-20 01:52:41,653 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 22 states. [2020-07-20 01:52:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:41,817 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2020-07-20 01:52:41,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-20 01:52:41,818 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-07-20 01:52:41,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:41,819 INFO L225 Difference]: With dead ends: 128 [2020-07-20 01:52:41,819 INFO L226 Difference]: Without dead ends: 126 [2020-07-20 01:52:41,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2020-07-20 01:52:41,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-20 01:52:41,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2020-07-20 01:52:41,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-20 01:52:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2020-07-20 01:52:41,828 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 115 [2020-07-20 01:52:41,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:41,829 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2020-07-20 01:52:41,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-20 01:52:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2020-07-20 01:52:41,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-20 01:52:41,830 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:41,831 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:42,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-07-20 01:52:42,046 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:42,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:42,047 INFO L82 PathProgramCache]: Analyzing trace with hash 269515701, now seen corresponding path program 16 times [2020-07-20 01:52:42,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:42,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709605546] [2020-07-20 01:52:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-07-20 01:52:42,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709605546] [2020-07-20 01:52:42,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077189123] [2020-07-20 01:52:42,296 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c4e9c5d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:42,354 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c4e9c5d issued 4 check-sat command(s) [2020-07-20 01:52:42,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:42,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-20 01:52:42,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:42,374 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-07-20 01:52:42,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:42,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2020-07-20 01:52:42,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843671346] [2020-07-20 01:52:42,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-20 01:52:42,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:42,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-20 01:52:42,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-07-20 01:52:42,419 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 23 states. [2020-07-20 01:52:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:42,611 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2020-07-20 01:52:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-20 01:52:42,611 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 122 [2020-07-20 01:52:42,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:42,613 INFO L225 Difference]: With dead ends: 135 [2020-07-20 01:52:42,613 INFO L226 Difference]: Without dead ends: 133 [2020-07-20 01:52:42,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=365, Unknown=0, NotChecked=0, Total=552 [2020-07-20 01:52:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-20 01:52:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2020-07-20 01:52:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 01:52:42,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2020-07-20 01:52:42,625 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 122 [2020-07-20 01:52:42,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:42,626 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2020-07-20 01:52:42,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-20 01:52:42,626 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2020-07-20 01:52:42,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 01:52:42,627 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:42,628 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:42,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-07-20 01:52:42,840 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:42,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1034546680, now seen corresponding path program 17 times [2020-07-20 01:52:42,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:42,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869792506] [2020-07-20 01:52:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:42,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-20 01:52:43,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869792506] [2020-07-20 01:52:43,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632181708] [2020-07-20 01:52:43,158 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4acd0878 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:43,219 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4acd0878 issued 4 check-sat command(s) [2020-07-20 01:52:43,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:43,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-20 01:52:43,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:43,243 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-20 01:52:43,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:43,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 24 [2020-07-20 01:52:43,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434374111] [2020-07-20 01:52:43,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-20 01:52:43,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:43,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-20 01:52:43,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2020-07-20 01:52:43,289 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 24 states. [2020-07-20 01:52:43,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:43,484 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2020-07-20 01:52:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-20 01:52:43,485 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 129 [2020-07-20 01:52:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:43,486 INFO L225 Difference]: With dead ends: 142 [2020-07-20 01:52:43,486 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 01:52:43,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2020-07-20 01:52:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 01:52:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2020-07-20 01:52:43,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-20 01:52:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2020-07-20 01:52:43,496 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 129 [2020-07-20 01:52:43,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:43,500 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2020-07-20 01:52:43,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-20 01:52:43,500 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2020-07-20 01:52:43,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-20 01:52:43,503 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:43,503 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:43,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-07-20 01:52:43,719 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:43,720 INFO L82 PathProgramCache]: Analyzing trace with hash -2034415531, now seen corresponding path program 18 times [2020-07-20 01:52:43,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:43,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354840017] [2020-07-20 01:52:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-07-20 01:52:44,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354840017] [2020-07-20 01:52:44,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47561313] [2020-07-20 01:52:44,171 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b45b12 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:44,248 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47b45b12 issued 4 check-sat command(s) [2020-07-20 01:52:44,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:44,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-20 01:52:44,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:44,280 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-07-20 01:52:44,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:44,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2020-07-20 01:52:44,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534757493] [2020-07-20 01:52:44,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-20 01:52:44,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:44,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-20 01:52:44,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=380, Unknown=0, NotChecked=0, Total=600 [2020-07-20 01:52:44,345 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 25 states. [2020-07-20 01:52:44,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:44,532 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2020-07-20 01:52:44,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-20 01:52:44,535 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 136 [2020-07-20 01:52:44,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:44,537 INFO L225 Difference]: With dead ends: 149 [2020-07-20 01:52:44,537 INFO L226 Difference]: Without dead ends: 147 [2020-07-20 01:52:44,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=226, Invalid=424, Unknown=0, NotChecked=0, Total=650 [2020-07-20 01:52:44,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-20 01:52:44,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-07-20 01:52:44,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-20 01:52:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2020-07-20 01:52:44,550 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 136 [2020-07-20 01:52:44,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:44,550 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2020-07-20 01:52:44,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-20 01:52:44,551 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2020-07-20 01:52:44,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 01:52:44,554 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:44,554 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:44,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:44,768 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:44,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:44,768 INFO L82 PathProgramCache]: Analyzing trace with hash 245879144, now seen corresponding path program 19 times [2020-07-20 01:52:44,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:44,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379084211] [2020-07-20 01:52:44,769 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-20 01:52:45,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379084211] [2020-07-20 01:52:45,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949402835] [2020-07-20 01:52:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@fc7b988 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:45,247 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@fc7b988 issued 4 check-sat command(s) [2020-07-20 01:52:45,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:45,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 01:52:45,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:45,275 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:45,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-20 01:52:45,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:45,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 26 [2020-07-20 01:52:45,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971295237] [2020-07-20 01:52:45,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-20 01:52:45,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:45,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-20 01:52:45,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=409, Unknown=0, NotChecked=0, Total=650 [2020-07-20 01:52:45,330 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 26 states. [2020-07-20 01:52:45,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:45,510 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2020-07-20 01:52:45,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-20 01:52:45,513 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 143 [2020-07-20 01:52:45,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:45,514 INFO L225 Difference]: With dead ends: 156 [2020-07-20 01:52:45,514 INFO L226 Difference]: Without dead ends: 154 [2020-07-20 01:52:45,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=455, Unknown=0, NotChecked=0, Total=702 [2020-07-20 01:52:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-20 01:52:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2020-07-20 01:52:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-20 01:52:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2020-07-20 01:52:45,526 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 143 [2020-07-20 01:52:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:45,527 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2020-07-20 01:52:45,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-20 01:52:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2020-07-20 01:52:45,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 01:52:45,529 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:45,529 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:45,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:45,744 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:45,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:45,744 INFO L82 PathProgramCache]: Analyzing trace with hash -499680011, now seen corresponding path program 20 times [2020-07-20 01:52:45,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:45,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421868628] [2020-07-20 01:52:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-07-20 01:52:46,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421868628] [2020-07-20 01:52:46,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795971045] [2020-07-20 01:52:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6568bee9 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:46,187 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6568bee9 issued 4 check-sat command(s) [2020-07-20 01:52:46,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:46,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjunts are in the unsatisfiable core [2020-07-20 01:52:46,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:46,207 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:46,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-07-20 01:52:46,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:46,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2020-07-20 01:52:46,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172970737] [2020-07-20 01:52:46,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-07-20 01:52:46,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:46,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-07-20 01:52:46,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=439, Unknown=0, NotChecked=0, Total=702 [2020-07-20 01:52:46,262 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 27 states. [2020-07-20 01:52:46,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:46,504 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2020-07-20 01:52:46,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-20 01:52:46,505 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 150 [2020-07-20 01:52:46,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:46,506 INFO L225 Difference]: With dead ends: 163 [2020-07-20 01:52:46,507 INFO L226 Difference]: Without dead ends: 161 [2020-07-20 01:52:46,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=269, Invalid=487, Unknown=0, NotChecked=0, Total=756 [2020-07-20 01:52:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-20 01:52:46,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2020-07-20 01:52:46,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-20 01:52:46,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2020-07-20 01:52:46,517 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 150 [2020-07-20 01:52:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:46,518 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2020-07-20 01:52:46,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-07-20 01:52:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2020-07-20 01:52:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 01:52:46,520 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:46,521 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:46,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-07-20 01:52:46,734 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:46,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1606887624, now seen corresponding path program 21 times [2020-07-20 01:52:46,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:46,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412856342] [2020-07-20 01:52:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-20 01:52:47,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412856342] [2020-07-20 01:52:47,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166688527] [2020-07-20 01:52:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3aef9c10 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:47,190 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3aef9c10 issued 4 check-sat command(s) [2020-07-20 01:52:47,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:47,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-20 01:52:47,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:47,216 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:47,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-20 01:52:47,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:47,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 28 [2020-07-20 01:52:47,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770640007] [2020-07-20 01:52:47,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-07-20 01:52:47,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:47,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-07-20 01:52:47,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=470, Unknown=0, NotChecked=0, Total=756 [2020-07-20 01:52:47,264 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 28 states. [2020-07-20 01:52:47,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:47,514 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2020-07-20 01:52:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-20 01:52:47,516 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 157 [2020-07-20 01:52:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:47,518 INFO L225 Difference]: With dead ends: 170 [2020-07-20 01:52:47,518 INFO L226 Difference]: Without dead ends: 168 [2020-07-20 01:52:47,519 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=292, Invalid=520, Unknown=0, NotChecked=0, Total=812 [2020-07-20 01:52:47,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-20 01:52:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-07-20 01:52:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-20 01:52:47,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2020-07-20 01:52:47,528 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 157 [2020-07-20 01:52:47,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:47,528 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2020-07-20 01:52:47,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-07-20 01:52:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2020-07-20 01:52:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 01:52:47,531 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:47,531 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:47,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-07-20 01:52:47,732 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:47,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:47,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1525225877, now seen corresponding path program 22 times [2020-07-20 01:52:47,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:47,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65259634] [2020-07-20 01:52:47,735 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:48,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-07-20 01:52:48,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65259634] [2020-07-20 01:52:48,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818309605] [2020-07-20 01:52:48,266 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a9b6511 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:48,350 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a9b6511 issued 4 check-sat command(s) [2020-07-20 01:52:48,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:48,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-20 01:52:48,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:48,382 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-07-20 01:52:48,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:48,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2020-07-20 01:52:48,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191922200] [2020-07-20 01:52:48,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-07-20 01:52:48,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:48,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-07-20 01:52:48,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=502, Unknown=0, NotChecked=0, Total=812 [2020-07-20 01:52:48,467 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 29 states. [2020-07-20 01:52:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:48,755 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2020-07-20 01:52:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-20 01:52:48,755 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 164 [2020-07-20 01:52:48,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:48,757 INFO L225 Difference]: With dead ends: 177 [2020-07-20 01:52:48,757 INFO L226 Difference]: Without dead ends: 175 [2020-07-20 01:52:48,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=316, Invalid=554, Unknown=0, NotChecked=0, Total=870 [2020-07-20 01:52:48,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-07-20 01:52:48,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2020-07-20 01:52:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-20 01:52:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2020-07-20 01:52:48,771 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 164 [2020-07-20 01:52:48,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:48,771 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2020-07-20 01:52:48,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-07-20 01:52:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2020-07-20 01:52:48,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-20 01:52:48,773 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:48,773 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:48,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:48,989 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash 302651432, now seen corresponding path program 23 times [2020-07-20 01:52:48,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:48,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767177852] [2020-07-20 01:52:48,990 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-07-20 01:52:49,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767177852] [2020-07-20 01:52:49,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354500865] [2020-07-20 01:52:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1e19ace8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:49,495 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1e19ace8 issued 4 check-sat command(s) [2020-07-20 01:52:49,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:49,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-20 01:52:49,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:49,542 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-07-20 01:52:49,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:49,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 30 [2020-07-20 01:52:49,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82729651] [2020-07-20 01:52:49,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-07-20 01:52:49,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:49,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-07-20 01:52:49,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=535, Unknown=0, NotChecked=0, Total=870 [2020-07-20 01:52:49,617 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 30 states. [2020-07-20 01:52:49,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:49,892 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2020-07-20 01:52:49,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-20 01:52:49,893 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 171 [2020-07-20 01:52:49,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:49,894 INFO L225 Difference]: With dead ends: 184 [2020-07-20 01:52:49,894 INFO L226 Difference]: Without dead ends: 182 [2020-07-20 01:52:49,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=589, Unknown=0, NotChecked=0, Total=930 [2020-07-20 01:52:49,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-20 01:52:49,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2020-07-20 01:52:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-07-20 01:52:49,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2020-07-20 01:52:49,901 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 171 [2020-07-20 01:52:49,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:49,901 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2020-07-20 01:52:49,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-07-20 01:52:49,902 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2020-07-20 01:52:49,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 01:52:49,904 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:49,904 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:50,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-07-20 01:52:50,105 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:50,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:50,106 INFO L82 PathProgramCache]: Analyzing trace with hash 666639925, now seen corresponding path program 24 times [2020-07-20 01:52:50,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:50,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033044085] [2020-07-20 01:52:50,107 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-07-20 01:52:50,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033044085] [2020-07-20 01:52:50,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139661924] [2020-07-20 01:52:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5492c9ff No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:50,645 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5492c9ff issued 4 check-sat command(s) [2020-07-20 01:52:50,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:50,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 28 conjunts are in the unsatisfiable core [2020-07-20 01:52:50,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:50,667 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-07-20 01:52:50,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:50,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2020-07-20 01:52:50,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531623563] [2020-07-20 01:52:50,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-20 01:52:50,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:50,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-20 01:52:50,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=569, Unknown=0, NotChecked=0, Total=930 [2020-07-20 01:52:50,732 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 31 states. [2020-07-20 01:52:50,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:50,983 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2020-07-20 01:52:50,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-20 01:52:50,984 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 178 [2020-07-20 01:52:50,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:50,985 INFO L225 Difference]: With dead ends: 191 [2020-07-20 01:52:50,985 INFO L226 Difference]: Without dead ends: 189 [2020-07-20 01:52:50,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=367, Invalid=625, Unknown=0, NotChecked=0, Total=992 [2020-07-20 01:52:50,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-07-20 01:52:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2020-07-20 01:52:50,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-20 01:52:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2020-07-20 01:52:50,993 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 178 [2020-07-20 01:52:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:50,994 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2020-07-20 01:52:50,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-20 01:52:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2020-07-20 01:52:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 01:52:50,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:50,995 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:51,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:51,209 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:51,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:51,210 INFO L82 PathProgramCache]: Analyzing trace with hash 860266376, now seen corresponding path program 25 times [2020-07-20 01:52:51,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:51,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485269970] [2020-07-20 01:52:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-07-20 01:52:51,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485269970] [2020-07-20 01:52:51,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071655646] [2020-07-20 01:52:51,734 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3620ddd0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:51,799 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3620ddd0 issued 4 check-sat command(s) [2020-07-20 01:52:51,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:51,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-20 01:52:51,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:51,820 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-07-20 01:52:51,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:51,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 32 [2020-07-20 01:52:51,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087301085] [2020-07-20 01:52:51,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-07-20 01:52:51,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:51,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-07-20 01:52:51,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=604, Unknown=0, NotChecked=0, Total=992 [2020-07-20 01:52:51,881 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 32 states. [2020-07-20 01:52:52,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:52,166 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2020-07-20 01:52:52,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-20 01:52:52,167 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 185 [2020-07-20 01:52:52,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:52,169 INFO L225 Difference]: With dead ends: 198 [2020-07-20 01:52:52,169 INFO L226 Difference]: Without dead ends: 196 [2020-07-20 01:52:52,171 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=394, Invalid=662, Unknown=0, NotChecked=0, Total=1056 [2020-07-20 01:52:52,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-20 01:52:52,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2020-07-20 01:52:52,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-20 01:52:52,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2020-07-20 01:52:52,178 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 185 [2020-07-20 01:52:52,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:52,178 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 195 transitions. [2020-07-20 01:52:52,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-07-20 01:52:52,179 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 195 transitions. [2020-07-20 01:52:52,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-20 01:52:52,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:52,180 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:52,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-07-20 01:52:52,394 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:52,395 INFO L82 PathProgramCache]: Analyzing trace with hash 505055957, now seen corresponding path program 26 times [2020-07-20 01:52:52,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:52,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197020910] [2020-07-20 01:52:52,396 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2020-07-20 01:52:52,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197020910] [2020-07-20 01:52:52,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243456223] [2020-07-20 01:52:52,931 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34f0f1f0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:53,005 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34f0f1f0 issued 4 check-sat command(s) [2020-07-20 01:52:53,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:53,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 30 conjunts are in the unsatisfiable core [2020-07-20 01:52:53,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:53,027 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2020-07-20 01:52:53,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:53,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2020-07-20 01:52:53,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717827265] [2020-07-20 01:52:53,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-20 01:52:53,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:53,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-20 01:52:53,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=640, Unknown=0, NotChecked=0, Total=1056 [2020-07-20 01:52:53,100 INFO L87 Difference]: Start difference. First operand 195 states and 195 transitions. Second operand 33 states. [2020-07-20 01:52:53,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:53,431 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2020-07-20 01:52:53,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-20 01:52:53,431 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 192 [2020-07-20 01:52:53,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:53,433 INFO L225 Difference]: With dead ends: 205 [2020-07-20 01:52:53,435 INFO L226 Difference]: Without dead ends: 203 [2020-07-20 01:52:53,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=422, Invalid=700, Unknown=0, NotChecked=0, Total=1122 [2020-07-20 01:52:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-20 01:52:53,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2020-07-20 01:52:53,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-20 01:52:53,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2020-07-20 01:52:53,445 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 192 [2020-07-20 01:52:53,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:53,445 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2020-07-20 01:52:53,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-20 01:52:53,446 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2020-07-20 01:52:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-20 01:52:53,446 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:53,447 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:53,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-07-20 01:52:53,648 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:53,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:53,649 INFO L82 PathProgramCache]: Analyzing trace with hash -489505048, now seen corresponding path program 27 times [2020-07-20 01:52:53,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:53,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166021878] [2020-07-20 01:52:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:54,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2020-07-20 01:52:54,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166021878] [2020-07-20 01:52:54,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427896785] [2020-07-20 01:52:54,280 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@61c7f0b1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:54,343 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@61c7f0b1 issued 4 check-sat command(s) [2020-07-20 01:52:54,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:54,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-20 01:52:54,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:54,370 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2020-07-20 01:52:54,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:54,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 34 [2020-07-20 01:52:54,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718257509] [2020-07-20 01:52:54,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-07-20 01:52:54,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:54,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-07-20 01:52:54,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=677, Unknown=0, NotChecked=0, Total=1122 [2020-07-20 01:52:54,430 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand 34 states. [2020-07-20 01:52:54,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:54,744 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2020-07-20 01:52:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-20 01:52:54,745 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 199 [2020-07-20 01:52:54,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:54,746 INFO L225 Difference]: With dead ends: 212 [2020-07-20 01:52:54,746 INFO L226 Difference]: Without dead ends: 210 [2020-07-20 01:52:54,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=739, Unknown=0, NotChecked=0, Total=1190 [2020-07-20 01:52:54,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-07-20 01:52:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2020-07-20 01:52:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-07-20 01:52:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2020-07-20 01:52:54,756 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 199 [2020-07-20 01:52:54,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:54,756 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2020-07-20 01:52:54,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-07-20 01:52:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2020-07-20 01:52:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-20 01:52:54,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:54,758 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:54,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-07-20 01:52:54,972 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:54,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:54,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1374576501, now seen corresponding path program 28 times [2020-07-20 01:52:54,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:54,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062546624] [2020-07-20 01:52:54,974 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2020-07-20 01:52:55,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062546624] [2020-07-20 01:52:55,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938908150] [2020-07-20 01:52:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124f4326 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:55,648 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@124f4326 issued 4 check-sat command(s) [2020-07-20 01:52:55,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:55,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 32 conjunts are in the unsatisfiable core [2020-07-20 01:52:55,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:55,670 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:55,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2020-07-20 01:52:55,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:55,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2020-07-20 01:52:55,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628692732] [2020-07-20 01:52:55,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-07-20 01:52:55,740 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:55,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-07-20 01:52:55,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=715, Unknown=0, NotChecked=0, Total=1190 [2020-07-20 01:52:55,741 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand 35 states. [2020-07-20 01:52:56,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:56,078 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2020-07-20 01:52:56,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-20 01:52:56,078 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 206 [2020-07-20 01:52:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:56,080 INFO L225 Difference]: With dead ends: 219 [2020-07-20 01:52:56,080 INFO L226 Difference]: Without dead ends: 217 [2020-07-20 01:52:56,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=779, Unknown=0, NotChecked=0, Total=1260 [2020-07-20 01:52:56,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-20 01:52:56,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2020-07-20 01:52:56,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-20 01:52:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2020-07-20 01:52:56,088 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 206 [2020-07-20 01:52:56,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:56,089 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2020-07-20 01:52:56,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-07-20 01:52:56,089 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2020-07-20 01:52:56,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-20 01:52:56,090 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:56,091 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:56,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-07-20 01:52:56,304 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:56,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:56,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1316719032, now seen corresponding path program 29 times [2020-07-20 01:52:56,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:56,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478761993] [2020-07-20 01:52:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-07-20 01:52:56,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478761993] [2020-07-20 01:52:56,929 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168091663] [2020-07-20 01:52:56,929 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5cf03cb7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:57,004 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5cf03cb7 issued 4 check-sat command(s) [2020-07-20 01:52:57,004 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:57,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-20 01:52:57,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:57,027 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:57,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-07-20 01:52:57,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:57,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 36 [2020-07-20 01:52:57,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812197969] [2020-07-20 01:52:57,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-07-20 01:52:57,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:57,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-07-20 01:52:57,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=506, Invalid=754, Unknown=0, NotChecked=0, Total=1260 [2020-07-20 01:52:57,117 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand 36 states. [2020-07-20 01:52:57,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:57,483 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2020-07-20 01:52:57,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-20 01:52:57,483 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 213 [2020-07-20 01:52:57,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:57,485 INFO L225 Difference]: With dead ends: 226 [2020-07-20 01:52:57,486 INFO L226 Difference]: Without dead ends: 224 [2020-07-20 01:52:57,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=512, Invalid=820, Unknown=0, NotChecked=0, Total=1332 [2020-07-20 01:52:57,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-20 01:52:57,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 223. [2020-07-20 01:52:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-07-20 01:52:57,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2020-07-20 01:52:57,494 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 213 [2020-07-20 01:52:57,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:57,495 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2020-07-20 01:52:57,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-07-20 01:52:57,495 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2020-07-20 01:52:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-20 01:52:57,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:57,496 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:57,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:57,712 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:57,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:57,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1247699947, now seen corresponding path program 30 times [2020-07-20 01:52:57,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:57,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82703336] [2020-07-20 01:52:57,713 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:58,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2020-07-20 01:52:58,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82703336] [2020-07-20 01:52:58,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314563830] [2020-07-20 01:52:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3beef5d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:58,436 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3beef5d issued 4 check-sat command(s) [2020-07-20 01:52:58,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:58,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 34 conjunts are in the unsatisfiable core [2020-07-20 01:52:58,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:58,473 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2020-07-20 01:52:58,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:58,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2020-07-20 01:52:58,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907736260] [2020-07-20 01:52:58,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-07-20 01:52:58,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:58,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-07-20 01:52:58,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=794, Unknown=0, NotChecked=0, Total=1332 [2020-07-20 01:52:58,547 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand 37 states. [2020-07-20 01:52:58,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:52:58,850 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2020-07-20 01:52:58,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-07-20 01:52:58,851 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 220 [2020-07-20 01:52:58,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:52:58,853 INFO L225 Difference]: With dead ends: 233 [2020-07-20 01:52:58,853 INFO L226 Difference]: Without dead ends: 231 [2020-07-20 01:52:58,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=544, Invalid=862, Unknown=0, NotChecked=0, Total=1406 [2020-07-20 01:52:58,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-20 01:52:58,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2020-07-20 01:52:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-20 01:52:58,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2020-07-20 01:52:58,860 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 220 [2020-07-20 01:52:58,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:52:58,861 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2020-07-20 01:52:58,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-07-20 01:52:58,861 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2020-07-20 01:52:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-20 01:52:58,863 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:52:58,863 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:52:59,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:59,078 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:52:59,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:52:59,078 INFO L82 PathProgramCache]: Analyzing trace with hash 28427688, now seen corresponding path program 31 times [2020-07-20 01:52:59,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:52:59,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015319324] [2020-07-20 01:52:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:52:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:52:59,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-07-20 01:52:59,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015319324] [2020-07-20 01:52:59,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125333580] [2020-07-20 01:52:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@819e85 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:52:59,848 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@819e85 issued 4 check-sat command(s) [2020-07-20 01:52:59,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:52:59,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-20 01:52:59,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:52:59,872 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:52:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-07-20 01:52:59,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:52:59,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 38 [2020-07-20 01:52:59,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196386820] [2020-07-20 01:52:59,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-07-20 01:52:59,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:52:59,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-07-20 01:52:59,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=835, Unknown=0, NotChecked=0, Total=1406 [2020-07-20 01:52:59,954 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand 38 states. [2020-07-20 01:53:00,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:00,344 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2020-07-20 01:53:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-07-20 01:53:00,344 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 227 [2020-07-20 01:53:00,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:00,346 INFO L225 Difference]: With dead ends: 240 [2020-07-20 01:53:00,346 INFO L226 Difference]: Without dead ends: 238 [2020-07-20 01:53:00,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=577, Invalid=905, Unknown=0, NotChecked=0, Total=1482 [2020-07-20 01:53:00,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-20 01:53:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2020-07-20 01:53:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-07-20 01:53:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2020-07-20 01:53:00,354 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 227 [2020-07-20 01:53:00,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:00,355 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2020-07-20 01:53:00,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-07-20 01:53:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2020-07-20 01:53:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-20 01:53:00,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:00,356 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:00,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:00,557 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:00,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:00,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1172422475, now seen corresponding path program 32 times [2020-07-20 01:53:00,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:00,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035280513] [2020-07-20 01:53:00,559 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2020-07-20 01:53:01,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035280513] [2020-07-20 01:53:01,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821345995] [2020-07-20 01:53:01,285 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@78b7cef6 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:01,362 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@78b7cef6 issued 4 check-sat command(s) [2020-07-20 01:53:01,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:01,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 36 conjunts are in the unsatisfiable core [2020-07-20 01:53:01,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:01,390 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2020-07-20 01:53:01,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:01,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2020-07-20 01:53:01,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979681352] [2020-07-20 01:53:01,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-07-20 01:53:01,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:01,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-07-20 01:53:01,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=877, Unknown=0, NotChecked=0, Total=1482 [2020-07-20 01:53:01,473 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand 39 states. [2020-07-20 01:53:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:01,822 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2020-07-20 01:53:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-20 01:53:01,823 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 234 [2020-07-20 01:53:01,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:01,824 INFO L225 Difference]: With dead ends: 247 [2020-07-20 01:53:01,825 INFO L226 Difference]: Without dead ends: 245 [2020-07-20 01:53:01,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=611, Invalid=949, Unknown=0, NotChecked=0, Total=1560 [2020-07-20 01:53:01,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-07-20 01:53:01,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 244. [2020-07-20 01:53:01,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-07-20 01:53:01,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 244 transitions. [2020-07-20 01:53:01,833 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 244 transitions. Word has length 234 [2020-07-20 01:53:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:01,834 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 244 transitions. [2020-07-20 01:53:01,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-07-20 01:53:01,834 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 244 transitions. [2020-07-20 01:53:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-20 01:53:01,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:01,836 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:02,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-07-20 01:53:02,049 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:02,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:02,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1731243272, now seen corresponding path program 33 times [2020-07-20 01:53:02,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:02,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691447224] [2020-07-20 01:53:02,050 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2020-07-20 01:53:02,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691447224] [2020-07-20 01:53:02,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3686487] [2020-07-20 01:53:02,818 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2333ef6a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:02,888 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2333ef6a issued 4 check-sat command(s) [2020-07-20 01:53:02,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:02,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-20 01:53:02,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:02,913 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:03,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2020-07-20 01:53:03,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:03,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 40 [2020-07-20 01:53:03,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941753583] [2020-07-20 01:53:03,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-07-20 01:53:03,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:03,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-07-20 01:53:03,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=920, Unknown=0, NotChecked=0, Total=1560 [2020-07-20 01:53:03,018 INFO L87 Difference]: Start difference. First operand 244 states and 244 transitions. Second operand 40 states. [2020-07-20 01:53:03,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:03,448 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2020-07-20 01:53:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-07-20 01:53:03,449 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 241 [2020-07-20 01:53:03,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:03,452 INFO L225 Difference]: With dead ends: 254 [2020-07-20 01:53:03,452 INFO L226 Difference]: Without dead ends: 252 [2020-07-20 01:53:03,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=646, Invalid=994, Unknown=0, NotChecked=0, Total=1640 [2020-07-20 01:53:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-07-20 01:53:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2020-07-20 01:53:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-20 01:53:03,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2020-07-20 01:53:03,463 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 241 [2020-07-20 01:53:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:03,464 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2020-07-20 01:53:03,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-07-20 01:53:03,464 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2020-07-20 01:53:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-20 01:53:03,467 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:03,467 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:03,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:03,682 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:03,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:03,683 INFO L82 PathProgramCache]: Analyzing trace with hash -288469675, now seen corresponding path program 34 times [2020-07-20 01:53:03,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:03,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181423873] [2020-07-20 01:53:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:04,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2020-07-20 01:53:04,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181423873] [2020-07-20 01:53:04,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333345522] [2020-07-20 01:53:04,467 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@24b2bcee No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:04,554 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@24b2bcee issued 4 check-sat command(s) [2020-07-20 01:53:04,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:04,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 38 conjunts are in the unsatisfiable core [2020-07-20 01:53:04,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:04,584 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:04,694 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2020-07-20 01:53:04,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:04,695 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2020-07-20 01:53:04,695 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911976354] [2020-07-20 01:53:04,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-07-20 01:53:04,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:04,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-07-20 01:53:04,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=964, Unknown=0, NotChecked=0, Total=1640 [2020-07-20 01:53:04,698 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand 41 states. [2020-07-20 01:53:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:05,116 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2020-07-20 01:53:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-07-20 01:53:05,117 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 248 [2020-07-20 01:53:05,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:05,119 INFO L225 Difference]: With dead ends: 261 [2020-07-20 01:53:05,119 INFO L226 Difference]: Without dead ends: 259 [2020-07-20 01:53:05,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=682, Invalid=1040, Unknown=0, NotChecked=0, Total=1722 [2020-07-20 01:53:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-20 01:53:05,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 258. [2020-07-20 01:53:05,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-20 01:53:05,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 258 transitions. [2020-07-20 01:53:05,127 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 258 transitions. Word has length 248 [2020-07-20 01:53:05,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:05,128 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 258 transitions. [2020-07-20 01:53:05,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-07-20 01:53:05,128 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 258 transitions. [2020-07-20 01:53:05,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-07-20 01:53:05,129 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:05,130 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:05,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-07-20 01:53:05,336 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:05,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:05,337 INFO L82 PathProgramCache]: Analyzing trace with hash 123153512, now seen corresponding path program 35 times [2020-07-20 01:53:05,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:05,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268489002] [2020-07-20 01:53:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-07-20 01:53:06,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268489002] [2020-07-20 01:53:06,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369956977] [2020-07-20 01:53:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ad56855 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:06,260 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3ad56855 issued 4 check-sat command(s) [2020-07-20 01:53:06,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:06,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-20 01:53:06,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:06,282 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-07-20 01:53:06,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:06,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 42 [2020-07-20 01:53:06,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976995339] [2020-07-20 01:53:06,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-07-20 01:53:06,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:06,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-07-20 01:53:06,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=1009, Unknown=0, NotChecked=0, Total=1722 [2020-07-20 01:53:06,371 INFO L87 Difference]: Start difference. First operand 258 states and 258 transitions. Second operand 42 states. [2020-07-20 01:53:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:06,793 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2020-07-20 01:53:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-20 01:53:06,794 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 255 [2020-07-20 01:53:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:06,796 INFO L225 Difference]: With dead ends: 268 [2020-07-20 01:53:06,796 INFO L226 Difference]: Without dead ends: 266 [2020-07-20 01:53:06,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=719, Invalid=1087, Unknown=0, NotChecked=0, Total=1806 [2020-07-20 01:53:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-20 01:53:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 265. [2020-07-20 01:53:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-20 01:53:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 265 transitions. [2020-07-20 01:53:06,804 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 265 transitions. Word has length 255 [2020-07-20 01:53:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:06,805 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 265 transitions. [2020-07-20 01:53:06,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-07-20 01:53:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 265 transitions. [2020-07-20 01:53:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-20 01:53:06,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:06,807 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:07,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:07,021 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:07,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:07,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1583627787, now seen corresponding path program 36 times [2020-07-20 01:53:07,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:07,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617480285] [2020-07-20 01:53:07,022 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2020-07-20 01:53:07,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617480285] [2020-07-20 01:53:07,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254143468] [2020-07-20 01:53:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6a24178b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:07,985 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6a24178b issued 4 check-sat command(s) [2020-07-20 01:53:07,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:07,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 40 conjunts are in the unsatisfiable core [2020-07-20 01:53:07,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:08,013 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2020-07-20 01:53:08,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:08,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2020-07-20 01:53:08,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144501020] [2020-07-20 01:53:08,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-07-20 01:53:08,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:08,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-07-20 01:53:08,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=751, Invalid=1055, Unknown=0, NotChecked=0, Total=1806 [2020-07-20 01:53:08,111 INFO L87 Difference]: Start difference. First operand 265 states and 265 transitions. Second operand 43 states. [2020-07-20 01:53:08,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:08,517 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2020-07-20 01:53:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-20 01:53:08,518 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 262 [2020-07-20 01:53:08,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:08,520 INFO L225 Difference]: With dead ends: 275 [2020-07-20 01:53:08,520 INFO L226 Difference]: Without dead ends: 273 [2020-07-20 01:53:08,521 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=757, Invalid=1135, Unknown=0, NotChecked=0, Total=1892 [2020-07-20 01:53:08,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-07-20 01:53:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 272. [2020-07-20 01:53:08,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-20 01:53:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2020-07-20 01:53:08,528 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 262 [2020-07-20 01:53:08,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:08,529 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2020-07-20 01:53:08,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-07-20 01:53:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2020-07-20 01:53:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-20 01:53:08,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:08,530 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:08,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-07-20 01:53:08,737 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:08,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:08,738 INFO L82 PathProgramCache]: Analyzing trace with hash -117750840, now seen corresponding path program 37 times [2020-07-20 01:53:08,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:08,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188500763] [2020-07-20 01:53:08,739 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2020-07-20 01:53:09,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188500763] [2020-07-20 01:53:09,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076508294] [2020-07-20 01:53:09,630 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51716f53 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:09,713 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51716f53 issued 4 check-sat command(s) [2020-07-20 01:53:09,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:09,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-20 01:53:09,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:09,737 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:09,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2020-07-20 01:53:09,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:09,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 44 [2020-07-20 01:53:09,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155666923] [2020-07-20 01:53:09,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-07-20 01:53:09,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:09,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-07-20 01:53:09,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=790, Invalid=1102, Unknown=0, NotChecked=0, Total=1892 [2020-07-20 01:53:09,828 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand 44 states. [2020-07-20 01:53:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:10,228 INFO L93 Difference]: Finished difference Result 282 states and 282 transitions. [2020-07-20 01:53:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-07-20 01:53:10,229 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 269 [2020-07-20 01:53:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:10,231 INFO L225 Difference]: With dead ends: 282 [2020-07-20 01:53:10,231 INFO L226 Difference]: Without dead ends: 280 [2020-07-20 01:53:10,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=796, Invalid=1184, Unknown=0, NotChecked=0, Total=1980 [2020-07-20 01:53:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-07-20 01:53:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2020-07-20 01:53:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-07-20 01:53:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 279 transitions. [2020-07-20 01:53:10,243 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 279 transitions. Word has length 269 [2020-07-20 01:53:10,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:10,243 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 279 transitions. [2020-07-20 01:53:10,243 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-07-20 01:53:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 279 transitions. [2020-07-20 01:53:10,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-20 01:53:10,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:10,245 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:10,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-07-20 01:53:10,460 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:10,460 INFO L82 PathProgramCache]: Analyzing trace with hash 2129698453, now seen corresponding path program 38 times [2020-07-20 01:53:10,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:10,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997868055] [2020-07-20 01:53:10,461 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2020-07-20 01:53:11,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997868055] [2020-07-20 01:53:11,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739628487] [2020-07-20 01:53:11,442 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1742b37f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:11,515 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1742b37f issued 4 check-sat command(s) [2020-07-20 01:53:11,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:11,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 42 conjunts are in the unsatisfiable core [2020-07-20 01:53:11,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:11,539 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:11,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2020-07-20 01:53:11,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:11,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2020-07-20 01:53:11,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554288836] [2020-07-20 01:53:11,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-07-20 01:53:11,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:11,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-07-20 01:53:11,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=830, Invalid=1150, Unknown=0, NotChecked=0, Total=1980 [2020-07-20 01:53:11,643 INFO L87 Difference]: Start difference. First operand 279 states and 279 transitions. Second operand 45 states. [2020-07-20 01:53:12,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:12,103 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2020-07-20 01:53:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-20 01:53:12,104 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 276 [2020-07-20 01:53:12,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:12,106 INFO L225 Difference]: With dead ends: 289 [2020-07-20 01:53:12,106 INFO L226 Difference]: Without dead ends: 287 [2020-07-20 01:53:12,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=836, Invalid=1234, Unknown=0, NotChecked=0, Total=2070 [2020-07-20 01:53:12,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-20 01:53:12,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2020-07-20 01:53:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-20 01:53:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2020-07-20 01:53:12,115 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 276 [2020-07-20 01:53:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:12,116 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2020-07-20 01:53:12,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-07-20 01:53:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2020-07-20 01:53:12,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-07-20 01:53:12,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:12,118 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:12,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-07-20 01:53:12,333 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:12,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:12,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1535970520, now seen corresponding path program 39 times [2020-07-20 01:53:12,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:12,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479402545] [2020-07-20 01:53:12,335 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2020-07-20 01:53:13,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479402545] [2020-07-20 01:53:13,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873364842] [2020-07-20 01:53:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1aa063b6 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:13,783 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1aa063b6 issued 4 check-sat command(s) [2020-07-20 01:53:13,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:13,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-20 01:53:13,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:13,820 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2020-07-20 01:53:14,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:14,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 46 [2020-07-20 01:53:14,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584797074] [2020-07-20 01:53:14,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-07-20 01:53:14,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:14,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-07-20 01:53:14,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=1199, Unknown=0, NotChecked=0, Total=2070 [2020-07-20 01:53:14,037 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand 46 states. [2020-07-20 01:53:14,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:14,594 INFO L93 Difference]: Finished difference Result 296 states and 296 transitions. [2020-07-20 01:53:14,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-07-20 01:53:14,595 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 283 [2020-07-20 01:53:14,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:14,597 INFO L225 Difference]: With dead ends: 296 [2020-07-20 01:53:14,598 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 01:53:14,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=877, Invalid=1285, Unknown=0, NotChecked=0, Total=2162 [2020-07-20 01:53:14,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 01:53:14,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 293. [2020-07-20 01:53:14,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-07-20 01:53:14,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 293 transitions. [2020-07-20 01:53:14,611 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 293 transitions. Word has length 283 [2020-07-20 01:53:14,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:14,611 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 293 transitions. [2020-07-20 01:53:14,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-07-20 01:53:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 293 transitions. [2020-07-20 01:53:14,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-07-20 01:53:14,613 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:14,614 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:14,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-07-20 01:53:14,828 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:14,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:14,829 INFO L82 PathProgramCache]: Analyzing trace with hash 834069301, now seen corresponding path program 40 times [2020-07-20 01:53:14,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:14,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402168555] [2020-07-20 01:53:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:15,995 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2020-07-20 01:53:15,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402168555] [2020-07-20 01:53:15,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755266207] [2020-07-20 01:53:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79865cf0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:16,069 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79865cf0 issued 4 check-sat command(s) [2020-07-20 01:53:16,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:16,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-20 01:53:16,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:16,091 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2020-07-20 01:53:16,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:16,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2020-07-20 01:53:16,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906953177] [2020-07-20 01:53:16,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-07-20 01:53:16,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:16,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-07-20 01:53:16,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=1249, Unknown=0, NotChecked=0, Total=2162 [2020-07-20 01:53:16,187 INFO L87 Difference]: Start difference. First operand 293 states and 293 transitions. Second operand 47 states. [2020-07-20 01:53:16,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:16,654 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2020-07-20 01:53:16,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-20 01:53:16,654 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 290 [2020-07-20 01:53:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:16,657 INFO L225 Difference]: With dead ends: 303 [2020-07-20 01:53:16,657 INFO L226 Difference]: Without dead ends: 301 [2020-07-20 01:53:16,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=919, Invalid=1337, Unknown=0, NotChecked=0, Total=2256 [2020-07-20 01:53:16,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-07-20 01:53:16,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2020-07-20 01:53:16,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-07-20 01:53:16,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 300 transitions. [2020-07-20 01:53:16,666 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 300 transitions. Word has length 290 [2020-07-20 01:53:16,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:16,666 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 300 transitions. [2020-07-20 01:53:16,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-07-20 01:53:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 300 transitions. [2020-07-20 01:53:16,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-07-20 01:53:16,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:16,669 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:16,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:16,884 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:16,885 INFO L82 PathProgramCache]: Analyzing trace with hash 596916872, now seen corresponding path program 41 times [2020-07-20 01:53:16,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:16,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973536351] [2020-07-20 01:53:16,886 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:18,058 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2020-07-20 01:53:18,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973536351] [2020-07-20 01:53:18,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964533216] [2020-07-20 01:53:18,058 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@78d13b99 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:18,143 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@78d13b99 issued 4 check-sat command(s) [2020-07-20 01:53:18,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:18,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-20 01:53:18,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:18,179 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2020-07-20 01:53:18,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:18,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 48 [2020-07-20 01:53:18,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602221709] [2020-07-20 01:53:18,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-07-20 01:53:18,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:18,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-07-20 01:53:18,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=1300, Unknown=0, NotChecked=0, Total=2256 [2020-07-20 01:53:18,287 INFO L87 Difference]: Start difference. First operand 300 states and 300 transitions. Second operand 48 states. [2020-07-20 01:53:18,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:18,793 INFO L93 Difference]: Finished difference Result 310 states and 310 transitions. [2020-07-20 01:53:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-07-20 01:53:18,794 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 297 [2020-07-20 01:53:18,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:18,795 INFO L225 Difference]: With dead ends: 310 [2020-07-20 01:53:18,796 INFO L226 Difference]: Without dead ends: 308 [2020-07-20 01:53:18,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=962, Invalid=1390, Unknown=0, NotChecked=0, Total=2352 [2020-07-20 01:53:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-07-20 01:53:18,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 307. [2020-07-20 01:53:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-07-20 01:53:18,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 307 transitions. [2020-07-20 01:53:18,805 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 307 transitions. Word has length 297 [2020-07-20 01:53:18,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:18,805 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 307 transitions. [2020-07-20 01:53:18,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-07-20 01:53:18,805 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 307 transitions. [2020-07-20 01:53:18,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-07-20 01:53:18,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:18,807 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:19,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-07-20 01:53:19,021 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:19,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:19,021 INFO L82 PathProgramCache]: Analyzing trace with hash 56135637, now seen corresponding path program 42 times [2020-07-20 01:53:19,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:19,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300730970] [2020-07-20 01:53:19,021 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2020-07-20 01:53:20,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300730970] [2020-07-20 01:53:20,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679609264] [2020-07-20 01:53:20,183 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2e377996 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:20,284 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2e377996 issued 4 check-sat command(s) [2020-07-20 01:53:20,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:20,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 46 conjunts are in the unsatisfiable core [2020-07-20 01:53:20,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:20,309 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:20,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2020-07-20 01:53:20,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:20,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2020-07-20 01:53:20,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7427361] [2020-07-20 01:53:20,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-07-20 01:53:20,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:20,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-07-20 01:53:20,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=1352, Unknown=0, NotChecked=0, Total=2352 [2020-07-20 01:53:20,420 INFO L87 Difference]: Start difference. First operand 307 states and 307 transitions. Second operand 49 states. [2020-07-20 01:53:20,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:20,917 INFO L93 Difference]: Finished difference Result 317 states and 317 transitions. [2020-07-20 01:53:20,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-07-20 01:53:20,918 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 304 [2020-07-20 01:53:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:20,920 INFO L225 Difference]: With dead ends: 317 [2020-07-20 01:53:20,921 INFO L226 Difference]: Without dead ends: 315 [2020-07-20 01:53:20,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1006, Invalid=1444, Unknown=0, NotChecked=0, Total=2450 [2020-07-20 01:53:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-20 01:53:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 314. [2020-07-20 01:53:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-07-20 01:53:20,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 314 transitions. [2020-07-20 01:53:20,931 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 314 transitions. Word has length 304 [2020-07-20 01:53:20,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:20,933 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 314 transitions. [2020-07-20 01:53:20,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-07-20 01:53:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 314 transitions. [2020-07-20 01:53:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-07-20 01:53:20,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:20,935 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:21,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:21,150 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:21,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:21,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1581966872, now seen corresponding path program 43 times [2020-07-20 01:53:21,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:21,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850140408] [2020-07-20 01:53:21,150 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:22,625 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2020-07-20 01:53:22,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850140408] [2020-07-20 01:53:22,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391181611] [2020-07-20 01:53:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76c655cc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:22,707 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76c655cc issued 4 check-sat command(s) [2020-07-20 01:53:22,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:22,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 47 conjunts are in the unsatisfiable core [2020-07-20 01:53:22,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:22,732 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2020-07-20 01:53:22,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:22,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 50 [2020-07-20 01:53:22,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200465191] [2020-07-20 01:53:22,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-07-20 01:53:22,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:22,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-07-20 01:53:22,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1045, Invalid=1405, Unknown=0, NotChecked=0, Total=2450 [2020-07-20 01:53:22,843 INFO L87 Difference]: Start difference. First operand 314 states and 314 transitions. Second operand 50 states. [2020-07-20 01:53:23,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:23,390 INFO L93 Difference]: Finished difference Result 324 states and 324 transitions. [2020-07-20 01:53:23,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-07-20 01:53:23,391 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 311 [2020-07-20 01:53:23,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:23,393 INFO L225 Difference]: With dead ends: 324 [2020-07-20 01:53:23,393 INFO L226 Difference]: Without dead ends: 322 [2020-07-20 01:53:23,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1051, Invalid=1499, Unknown=0, NotChecked=0, Total=2550 [2020-07-20 01:53:23,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-07-20 01:53:23,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2020-07-20 01:53:23,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-20 01:53:23,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2020-07-20 01:53:23,401 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 311 [2020-07-20 01:53:23,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:23,402 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2020-07-20 01:53:23,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-07-20 01:53:23,402 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2020-07-20 01:53:23,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-07-20 01:53:23,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:23,404 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:23,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:23,618 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:23,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:23,619 INFO L82 PathProgramCache]: Analyzing trace with hash 2076157045, now seen corresponding path program 44 times [2020-07-20 01:53:23,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:23,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197268902] [2020-07-20 01:53:23,620 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:24,886 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2020-07-20 01:53:24,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197268902] [2020-07-20 01:53:24,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742876032] [2020-07-20 01:53:24,887 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7db176f5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:24,972 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7db176f5 issued 4 check-sat command(s) [2020-07-20 01:53:24,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:24,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-20 01:53:24,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:25,009 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:25,131 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2020-07-20 01:53:25,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:25,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2020-07-20 01:53:25,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4412464] [2020-07-20 01:53:25,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-07-20 01:53:25,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:25,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-07-20 01:53:25,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1091, Invalid=1459, Unknown=0, NotChecked=0, Total=2550 [2020-07-20 01:53:25,134 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand 51 states. [2020-07-20 01:53:25,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:25,747 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2020-07-20 01:53:25,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-07-20 01:53:25,747 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 318 [2020-07-20 01:53:25,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:25,749 INFO L225 Difference]: With dead ends: 331 [2020-07-20 01:53:25,749 INFO L226 Difference]: Without dead ends: 329 [2020-07-20 01:53:25,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1097, Invalid=1555, Unknown=0, NotChecked=0, Total=2652 [2020-07-20 01:53:25,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-07-20 01:53:25,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2020-07-20 01:53:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-07-20 01:53:25,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 328 transitions. [2020-07-20 01:53:25,758 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 328 transitions. Word has length 318 [2020-07-20 01:53:25,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:25,759 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 328 transitions. [2020-07-20 01:53:25,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-07-20 01:53:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 328 transitions. [2020-07-20 01:53:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-20 01:53:25,761 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:25,761 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:25,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-07-20 01:53:25,975 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:25,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:25,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1146384056, now seen corresponding path program 45 times [2020-07-20 01:53:25,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:25,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805822235] [2020-07-20 01:53:25,976 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 90 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2020-07-20 01:53:27,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805822235] [2020-07-20 01:53:27,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181842006] [2020-07-20 01:53:27,300 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@614828fc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:27,399 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@614828fc issued 4 check-sat command(s) [2020-07-20 01:53:27,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:27,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 49 conjunts are in the unsatisfiable core [2020-07-20 01:53:27,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:27,431 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:27,554 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 90 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2020-07-20 01:53:27,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:27,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 52 [2020-07-20 01:53:27,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767014939] [2020-07-20 01:53:27,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-07-20 01:53:27,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:27,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-07-20 01:53:27,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1138, Invalid=1514, Unknown=0, NotChecked=0, Total=2652 [2020-07-20 01:53:27,557 INFO L87 Difference]: Start difference. First operand 328 states and 328 transitions. Second operand 52 states. [2020-07-20 01:53:28,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:28,179 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2020-07-20 01:53:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-07-20 01:53:28,180 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 325 [2020-07-20 01:53:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:28,181 INFO L225 Difference]: With dead ends: 338 [2020-07-20 01:53:28,182 INFO L226 Difference]: Without dead ends: 336 [2020-07-20 01:53:28,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1144, Invalid=1612, Unknown=0, NotChecked=0, Total=2756 [2020-07-20 01:53:28,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-07-20 01:53:28,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 335. [2020-07-20 01:53:28,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-20 01:53:28,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 335 transitions. [2020-07-20 01:53:28,190 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 335 transitions. Word has length 325 [2020-07-20 01:53:28,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:28,190 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 335 transitions. [2020-07-20 01:53:28,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-07-20 01:53:28,191 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 335 transitions. [2020-07-20 01:53:28,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-20 01:53:28,192 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:28,193 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:28,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-07-20 01:53:28,406 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:28,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:28,407 INFO L82 PathProgramCache]: Analyzing trace with hash 22421781, now seen corresponding path program 46 times [2020-07-20 01:53:28,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:28,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320386044] [2020-07-20 01:53:28,408 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 92 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2020-07-20 01:53:29,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320386044] [2020-07-20 01:53:29,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046259789] [2020-07-20 01:53:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7991f894 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:29,818 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7991f894 issued 4 check-sat command(s) [2020-07-20 01:53:29,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:29,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 50 conjunts are in the unsatisfiable core [2020-07-20 01:53:29,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:29,842 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:29,959 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 92 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2020-07-20 01:53:29,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:29,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 53 [2020-07-20 01:53:29,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991024512] [2020-07-20 01:53:29,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-07-20 01:53:29,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:29,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-07-20 01:53:29,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1186, Invalid=1570, Unknown=0, NotChecked=0, Total=2756 [2020-07-20 01:53:29,960 INFO L87 Difference]: Start difference. First operand 335 states and 335 transitions. Second operand 53 states. [2020-07-20 01:53:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:30,572 INFO L93 Difference]: Finished difference Result 345 states and 345 transitions. [2020-07-20 01:53:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-07-20 01:53:30,573 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 332 [2020-07-20 01:53:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:30,575 INFO L225 Difference]: With dead ends: 345 [2020-07-20 01:53:30,575 INFO L226 Difference]: Without dead ends: 343 [2020-07-20 01:53:30,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1192, Invalid=1670, Unknown=0, NotChecked=0, Total=2862 [2020-07-20 01:53:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-20 01:53:30,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 342. [2020-07-20 01:53:30,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-07-20 01:53:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 342 transitions. [2020-07-20 01:53:30,585 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 342 transitions. Word has length 332 [2020-07-20 01:53:30,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:30,586 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 342 transitions. [2020-07-20 01:53:30,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-07-20 01:53:30,586 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 342 transitions. [2020-07-20 01:53:30,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-20 01:53:30,588 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:30,588 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:30,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-07-20 01:53:30,802 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:30,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:30,803 INFO L82 PathProgramCache]: Analyzing trace with hash -540172120, now seen corresponding path program 47 times [2020-07-20 01:53:30,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:30,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422750381] [2020-07-20 01:53:30,804 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 94 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2020-07-20 01:53:32,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422750381] [2020-07-20 01:53:32,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771009910] [2020-07-20 01:53:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43b5f837 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:32,278 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43b5f837 issued 4 check-sat command(s) [2020-07-20 01:53:32,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:32,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 51 conjunts are in the unsatisfiable core [2020-07-20 01:53:32,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:32,304 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 94 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2020-07-20 01:53:32,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:32,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 54 [2020-07-20 01:53:32,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221419226] [2020-07-20 01:53:32,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-07-20 01:53:32,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:32,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-07-20 01:53:32,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=1627, Unknown=0, NotChecked=0, Total=2862 [2020-07-20 01:53:32,415 INFO L87 Difference]: Start difference. First operand 342 states and 342 transitions. Second operand 54 states. [2020-07-20 01:53:33,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:33,106 INFO L93 Difference]: Finished difference Result 352 states and 352 transitions. [2020-07-20 01:53:33,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-07-20 01:53:33,107 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 339 [2020-07-20 01:53:33,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:33,109 INFO L225 Difference]: With dead ends: 352 [2020-07-20 01:53:33,109 INFO L226 Difference]: Without dead ends: 350 [2020-07-20 01:53:33,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1241, Invalid=1729, Unknown=0, NotChecked=0, Total=2970 [2020-07-20 01:53:33,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-07-20 01:53:33,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2020-07-20 01:53:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-20 01:53:33,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 349 transitions. [2020-07-20 01:53:33,118 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 349 transitions. Word has length 339 [2020-07-20 01:53:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:33,119 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 349 transitions. [2020-07-20 01:53:33,119 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-07-20 01:53:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 349 transitions. [2020-07-20 01:53:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-07-20 01:53:33,121 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:33,122 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:33,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:33,336 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:33,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:33,337 INFO L82 PathProgramCache]: Analyzing trace with hash 2030437813, now seen corresponding path program 48 times [2020-07-20 01:53:33,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:33,337 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719947894] [2020-07-20 01:53:33,338 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 96 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-07-20 01:53:34,772 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719947894] [2020-07-20 01:53:34,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206883033] [2020-07-20 01:53:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d1c5ebc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:34,857 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d1c5ebc issued 4 check-sat command(s) [2020-07-20 01:53:34,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:34,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-20 01:53:34,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:34,886 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 96 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-07-20 01:53:35,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:35,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 55 [2020-07-20 01:53:35,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149079338] [2020-07-20 01:53:35,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-07-20 01:53:35,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:35,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-07-20 01:53:35,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1285, Invalid=1685, Unknown=0, NotChecked=0, Total=2970 [2020-07-20 01:53:35,095 INFO L87 Difference]: Start difference. First operand 349 states and 349 transitions. Second operand 55 states. [2020-07-20 01:53:35,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:35,768 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2020-07-20 01:53:35,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-07-20 01:53:35,768 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 346 [2020-07-20 01:53:35,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:35,770 INFO L225 Difference]: With dead ends: 359 [2020-07-20 01:53:35,771 INFO L226 Difference]: Without dead ends: 357 [2020-07-20 01:53:35,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1291, Invalid=1789, Unknown=0, NotChecked=0, Total=3080 [2020-07-20 01:53:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-07-20 01:53:35,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2020-07-20 01:53:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-07-20 01:53:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2020-07-20 01:53:35,780 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 346 [2020-07-20 01:53:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:35,780 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2020-07-20 01:53:35,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-07-20 01:53:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2020-07-20 01:53:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-07-20 01:53:35,782 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:35,783 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:35,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2020-07-20 01:53:35,997 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:35,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:35,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1376696312, now seen corresponding path program 49 times [2020-07-20 01:53:35,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:35,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270173360] [2020-07-20 01:53:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:37,573 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 98 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2020-07-20 01:53:37,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270173360] [2020-07-20 01:53:37,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905944540] [2020-07-20 01:53:37,573 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c8180ae No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:37,659 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c8180ae issued 4 check-sat command(s) [2020-07-20 01:53:37,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:37,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-20 01:53:37,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:37,688 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 98 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2020-07-20 01:53:37,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:37,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 56 [2020-07-20 01:53:37,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89061747] [2020-07-20 01:53:37,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-07-20 01:53:37,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:37,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-07-20 01:53:37,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1336, Invalid=1744, Unknown=0, NotChecked=0, Total=3080 [2020-07-20 01:53:37,816 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand 56 states. [2020-07-20 01:53:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:38,472 INFO L93 Difference]: Finished difference Result 366 states and 366 transitions. [2020-07-20 01:53:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-07-20 01:53:38,472 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 353 [2020-07-20 01:53:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:38,475 INFO L225 Difference]: With dead ends: 366 [2020-07-20 01:53:38,475 INFO L226 Difference]: Without dead ends: 364 [2020-07-20 01:53:38,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 452 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1342, Invalid=1850, Unknown=0, NotChecked=0, Total=3192 [2020-07-20 01:53:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-07-20 01:53:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2020-07-20 01:53:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-07-20 01:53:38,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 363 transitions. [2020-07-20 01:53:38,485 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 363 transitions. Word has length 353 [2020-07-20 01:53:38,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:38,485 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 363 transitions. [2020-07-20 01:53:38,485 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-07-20 01:53:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 363 transitions. [2020-07-20 01:53:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-07-20 01:53:38,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:38,488 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:38,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-07-20 01:53:38,703 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:38,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:38,704 INFO L82 PathProgramCache]: Analyzing trace with hash -432450987, now seen corresponding path program 50 times [2020-07-20 01:53:38,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:38,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885839896] [2020-07-20 01:53:38,705 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 100 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2020-07-20 01:53:40,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885839896] [2020-07-20 01:53:40,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389912293] [2020-07-20 01:53:40,270 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45707ccd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:40,361 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45707ccd issued 4 check-sat command(s) [2020-07-20 01:53:40,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:40,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 54 conjunts are in the unsatisfiable core [2020-07-20 01:53:40,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:40,395 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 100 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2020-07-20 01:53:40,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:40,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 57 [2020-07-20 01:53:40,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390598564] [2020-07-20 01:53:40,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-07-20 01:53:40,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:40,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-07-20 01:53:40,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1388, Invalid=1804, Unknown=0, NotChecked=0, Total=3192 [2020-07-20 01:53:40,509 INFO L87 Difference]: Start difference. First operand 363 states and 363 transitions. Second operand 57 states. [2020-07-20 01:53:41,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:41,300 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2020-07-20 01:53:41,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-07-20 01:53:41,301 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 360 [2020-07-20 01:53:41,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:41,303 INFO L225 Difference]: With dead ends: 373 [2020-07-20 01:53:41,303 INFO L226 Difference]: Without dead ends: 371 [2020-07-20 01:53:41,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1394, Invalid=1912, Unknown=0, NotChecked=0, Total=3306 [2020-07-20 01:53:41,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-20 01:53:41,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 370. [2020-07-20 01:53:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-07-20 01:53:41,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 370 transitions. [2020-07-20 01:53:41,311 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 370 transitions. Word has length 360 [2020-07-20 01:53:41,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:41,311 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 370 transitions. [2020-07-20 01:53:41,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-07-20 01:53:41,311 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 370 transitions. [2020-07-20 01:53:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-07-20 01:53:41,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:41,314 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:41,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:41,527 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:41,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:41,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1466730344, now seen corresponding path program 51 times [2020-07-20 01:53:41,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:41,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657645018] [2020-07-20 01:53:41,528 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 102 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2020-07-20 01:53:43,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657645018] [2020-07-20 01:53:43,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993960906] [2020-07-20 01:53:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@53f7d125 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:43,243 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@53f7d125 issued 4 check-sat command(s) [2020-07-20 01:53:43,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:43,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 55 conjunts are in the unsatisfiable core [2020-07-20 01:53:43,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:43,265 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 102 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2020-07-20 01:53:43,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:43,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 58 [2020-07-20 01:53:43,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397745629] [2020-07-20 01:53:43,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-07-20 01:53:43,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:43,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-07-20 01:53:43,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=1865, Unknown=0, NotChecked=0, Total=3306 [2020-07-20 01:53:43,386 INFO L87 Difference]: Start difference. First operand 370 states and 370 transitions. Second operand 58 states. [2020-07-20 01:53:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:44,155 INFO L93 Difference]: Finished difference Result 380 states and 380 transitions. [2020-07-20 01:53:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-07-20 01:53:44,156 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 367 [2020-07-20 01:53:44,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:44,158 INFO L225 Difference]: With dead ends: 380 [2020-07-20 01:53:44,158 INFO L226 Difference]: Without dead ends: 378 [2020-07-20 01:53:44,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1447, Invalid=1975, Unknown=0, NotChecked=0, Total=3422 [2020-07-20 01:53:44,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-07-20 01:53:44,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2020-07-20 01:53:44,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-07-20 01:53:44,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 377 transitions. [2020-07-20 01:53:44,167 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 377 transitions. Word has length 367 [2020-07-20 01:53:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:44,168 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 377 transitions. [2020-07-20 01:53:44,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-07-20 01:53:44,168 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 377 transitions. [2020-07-20 01:53:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-07-20 01:53:44,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:44,170 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:44,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-07-20 01:53:44,384 INFO L427 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:44,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:44,384 INFO L82 PathProgramCache]: Analyzing trace with hash 182060789, now seen corresponding path program 52 times [2020-07-20 01:53:44,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:44,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330684261] [2020-07-20 01:53:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:46,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 104 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2020-07-20 01:53:46,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330684261] [2020-07-20 01:53:46,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656772816] [2020-07-20 01:53:46,092 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@560f87dc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:46,181 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@560f87dc issued 4 check-sat command(s) [2020-07-20 01:53:46,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:46,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 56 conjunts are in the unsatisfiable core [2020-07-20 01:53:46,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:46,211 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:46,358 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 104 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2020-07-20 01:53:46,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:46,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 59 [2020-07-20 01:53:46,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175140741] [2020-07-20 01:53:46,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-07-20 01:53:46,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:46,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-07-20 01:53:46,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1495, Invalid=1927, Unknown=0, NotChecked=0, Total=3422 [2020-07-20 01:53:46,360 INFO L87 Difference]: Start difference. First operand 377 states and 377 transitions. Second operand 59 states. [2020-07-20 01:53:47,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:47,158 INFO L93 Difference]: Finished difference Result 387 states and 387 transitions. [2020-07-20 01:53:47,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-07-20 01:53:47,158 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 374 [2020-07-20 01:53:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:47,161 INFO L225 Difference]: With dead ends: 387 [2020-07-20 01:53:47,161 INFO L226 Difference]: Without dead ends: 385 [2020-07-20 01:53:47,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1501, Invalid=2039, Unknown=0, NotChecked=0, Total=3540 [2020-07-20 01:53:47,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-07-20 01:53:47,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2020-07-20 01:53:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-07-20 01:53:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 384 transitions. [2020-07-20 01:53:47,170 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 384 transitions. Word has length 374 [2020-07-20 01:53:47,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:47,170 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 384 transitions. [2020-07-20 01:53:47,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-07-20 01:53:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 384 transitions. [2020-07-20 01:53:47,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-07-20 01:53:47,173 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:47,173 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:47,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:47,388 INFO L427 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:47,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:47,388 INFO L82 PathProgramCache]: Analyzing trace with hash -15376696, now seen corresponding path program 53 times [2020-07-20 01:53:47,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:47,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136269086] [2020-07-20 01:53:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 106 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2020-07-20 01:53:49,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136269086] [2020-07-20 01:53:49,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992896191] [2020-07-20 01:53:49,165 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a199b29 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:49,257 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a199b29 issued 4 check-sat command(s) [2020-07-20 01:53:49,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:49,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 57 conjunts are in the unsatisfiable core [2020-07-20 01:53:49,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:49,284 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 106 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2020-07-20 01:53:49,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:49,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 60 [2020-07-20 01:53:49,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568247245] [2020-07-20 01:53:49,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-07-20 01:53:49,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:49,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-07-20 01:53:49,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1550, Invalid=1990, Unknown=0, NotChecked=0, Total=3540 [2020-07-20 01:53:49,538 INFO L87 Difference]: Start difference. First operand 384 states and 384 transitions. Second operand 60 states. [2020-07-20 01:53:50,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:50,469 INFO L93 Difference]: Finished difference Result 394 states and 394 transitions. [2020-07-20 01:53:50,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-07-20 01:53:50,470 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 381 [2020-07-20 01:53:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:50,472 INFO L225 Difference]: With dead ends: 394 [2020-07-20 01:53:50,472 INFO L226 Difference]: Without dead ends: 392 [2020-07-20 01:53:50,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1556, Invalid=2104, Unknown=0, NotChecked=0, Total=3660 [2020-07-20 01:53:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-07-20 01:53:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2020-07-20 01:53:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-20 01:53:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 391 transitions. [2020-07-20 01:53:50,481 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 391 transitions. Word has length 381 [2020-07-20 01:53:50,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:50,481 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 391 transitions. [2020-07-20 01:53:50,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-07-20 01:53:50,482 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 391 transitions. [2020-07-20 01:53:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-07-20 01:53:50,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:50,484 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:50,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2020-07-20 01:53:50,700 INFO L427 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:50,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:50,701 INFO L82 PathProgramCache]: Analyzing trace with hash 122823573, now seen corresponding path program 54 times [2020-07-20 01:53:50,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:50,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773120118] [2020-07-20 01:53:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 108 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2020-07-20 01:53:52,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773120118] [2020-07-20 01:53:52,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873515853] [2020-07-20 01:53:52,570 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@52f826c3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:52,672 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@52f826c3 issued 4 check-sat command(s) [2020-07-20 01:53:52,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:52,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 58 conjunts are in the unsatisfiable core [2020-07-20 01:53:52,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:52,693 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 108 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2020-07-20 01:53:52,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:52,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 61 [2020-07-20 01:53:52,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906853140] [2020-07-20 01:53:52,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-07-20 01:53:52,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:52,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-07-20 01:53:52,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=2054, Unknown=0, NotChecked=0, Total=3660 [2020-07-20 01:53:52,827 INFO L87 Difference]: Start difference. First operand 391 states and 391 transitions. Second operand 61 states. [2020-07-20 01:53:53,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:53,644 INFO L93 Difference]: Finished difference Result 401 states and 401 transitions. [2020-07-20 01:53:53,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-07-20 01:53:53,644 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 388 [2020-07-20 01:53:53,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:53,647 INFO L225 Difference]: With dead ends: 401 [2020-07-20 01:53:53,647 INFO L226 Difference]: Without dead ends: 399 [2020-07-20 01:53:53,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1612, Invalid=2170, Unknown=0, NotChecked=0, Total=3782 [2020-07-20 01:53:53,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-07-20 01:53:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2020-07-20 01:53:53,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-20 01:53:53,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 398 transitions. [2020-07-20 01:53:53,655 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 398 transitions. Word has length 388 [2020-07-20 01:53:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:53,656 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 398 transitions. [2020-07-20 01:53:53,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-07-20 01:53:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 398 transitions. [2020-07-20 01:53:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-07-20 01:53:53,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:53,659 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:53,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-07-20 01:53:53,861 INFO L427 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:53,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:53,862 INFO L82 PathProgramCache]: Analyzing trace with hash 423743016, now seen corresponding path program 55 times [2020-07-20 01:53:53,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:53,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134409200] [2020-07-20 01:53:53,862 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:55,748 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 110 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2020-07-20 01:53:55,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134409200] [2020-07-20 01:53:55,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61952364] [2020-07-20 01:53:55,748 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a384827 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:55,847 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a384827 issued 4 check-sat command(s) [2020-07-20 01:53:55,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:55,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-20 01:53:55,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:55,871 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 110 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2020-07-20 01:53:56,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:56,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 62 [2020-07-20 01:53:56,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530360868] [2020-07-20 01:53:56,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-07-20 01:53:56,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:56,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-07-20 01:53:56,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1663, Invalid=2119, Unknown=0, NotChecked=0, Total=3782 [2020-07-20 01:53:56,024 INFO L87 Difference]: Start difference. First operand 398 states and 398 transitions. Second operand 62 states. [2020-07-20 01:53:56,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:53:56,789 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2020-07-20 01:53:56,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-07-20 01:53:56,790 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 395 [2020-07-20 01:53:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:53:56,792 INFO L225 Difference]: With dead ends: 408 [2020-07-20 01:53:56,793 INFO L226 Difference]: Without dead ends: 406 [2020-07-20 01:53:56,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1669, Invalid=2237, Unknown=0, NotChecked=0, Total=3906 [2020-07-20 01:53:56,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-07-20 01:53:56,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2020-07-20 01:53:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-20 01:53:56,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 405 transitions. [2020-07-20 01:53:56,801 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 405 transitions. Word has length 395 [2020-07-20 01:53:56,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:53:56,802 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 405 transitions. [2020-07-20 01:53:56,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-07-20 01:53:56,802 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 405 transitions. [2020-07-20 01:53:56,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-07-20 01:53:56,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:53:56,805 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:53:57,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:57,019 INFO L427 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:53:57,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:53:57,020 INFO L82 PathProgramCache]: Analyzing trace with hash -91510731, now seen corresponding path program 56 times [2020-07-20 01:53:57,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:53:57,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451854297] [2020-07-20 01:53:57,021 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:53:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:53:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 112 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2020-07-20 01:53:58,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451854297] [2020-07-20 01:53:58,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644212447] [2020-07-20 01:53:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72e525ac No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:53:59,090 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72e525ac issued 4 check-sat command(s) [2020-07-20 01:53:59,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:53:59,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 60 conjunts are in the unsatisfiable core [2020-07-20 01:53:59,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:53:59,116 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:53:59,269 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 112 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2020-07-20 01:53:59,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:53:59,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 63 [2020-07-20 01:53:59,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589483245] [2020-07-20 01:53:59,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-07-20 01:53:59,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:53:59,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-07-20 01:53:59,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1721, Invalid=2185, Unknown=0, NotChecked=0, Total=3906 [2020-07-20 01:53:59,271 INFO L87 Difference]: Start difference. First operand 405 states and 405 transitions. Second operand 63 states. [2020-07-20 01:54:00,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:00,299 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2020-07-20 01:54:00,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-07-20 01:54:00,300 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 402 [2020-07-20 01:54:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:00,303 INFO L225 Difference]: With dead ends: 415 [2020-07-20 01:54:00,304 INFO L226 Difference]: Without dead ends: 413 [2020-07-20 01:54:00,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1727, Invalid=2305, Unknown=0, NotChecked=0, Total=4032 [2020-07-20 01:54:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-20 01:54:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 412. [2020-07-20 01:54:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-20 01:54:00,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 412 transitions. [2020-07-20 01:54:00,318 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 412 transitions. Word has length 402 [2020-07-20 01:54:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:00,319 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 412 transitions. [2020-07-20 01:54:00,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-07-20 01:54:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 412 transitions. [2020-07-20 01:54:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-07-20 01:54:00,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:00,324 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:00,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-07-20 01:54:00,538 INFO L427 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:00,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:00,538 INFO L82 PathProgramCache]: Analyzing trace with hash -876096120, now seen corresponding path program 57 times [2020-07-20 01:54:00,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:00,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837798623] [2020-07-20 01:54:00,539 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 114 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2020-07-20 01:54:03,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837798623] [2020-07-20 01:54:03,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075707958] [2020-07-20 01:54:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@589be5e5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:03,786 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@589be5e5 issued 4 check-sat command(s) [2020-07-20 01:54:03,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:03,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 61 conjunts are in the unsatisfiable core [2020-07-20 01:54:03,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:03,828 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 114 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2020-07-20 01:54:04,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:04,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 64 [2020-07-20 01:54:04,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585876093] [2020-07-20 01:54:04,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-07-20 01:54:04,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:04,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-07-20 01:54:04,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1780, Invalid=2252, Unknown=0, NotChecked=0, Total=4032 [2020-07-20 01:54:04,138 INFO L87 Difference]: Start difference. First operand 412 states and 412 transitions. Second operand 64 states. [2020-07-20 01:54:05,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:05,064 INFO L93 Difference]: Finished difference Result 422 states and 422 transitions. [2020-07-20 01:54:05,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-07-20 01:54:05,065 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 409 [2020-07-20 01:54:05,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:05,067 INFO L225 Difference]: With dead ends: 422 [2020-07-20 01:54:05,067 INFO L226 Difference]: Without dead ends: 420 [2020-07-20 01:54:05,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1786, Invalid=2374, Unknown=0, NotChecked=0, Total=4160 [2020-07-20 01:54:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-07-20 01:54:05,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2020-07-20 01:54:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-07-20 01:54:05,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 419 transitions. [2020-07-20 01:54:05,074 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 419 transitions. Word has length 409 [2020-07-20 01:54:05,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:05,075 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 419 transitions. [2020-07-20 01:54:05,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-07-20 01:54:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 419 transitions. [2020-07-20 01:54:05,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-07-20 01:54:05,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:05,078 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:05,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:05,286 INFO L427 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:05,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1578068779, now seen corresponding path program 58 times [2020-07-20 01:54:05,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:05,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859118817] [2020-07-20 01:54:05,288 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 116 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2020-07-20 01:54:07,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859118817] [2020-07-20 01:54:07,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959743753] [2020-07-20 01:54:07,412 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@798a85f5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:07,512 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@798a85f5 issued 4 check-sat command(s) [2020-07-20 01:54:07,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:07,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 62 conjunts are in the unsatisfiable core [2020-07-20 01:54:07,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:07,538 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:07,706 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 116 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2020-07-20 01:54:07,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:07,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 65 [2020-07-20 01:54:07,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121332356] [2020-07-20 01:54:07,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-07-20 01:54:07,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:07,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-07-20 01:54:07,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1840, Invalid=2320, Unknown=0, NotChecked=0, Total=4160 [2020-07-20 01:54:07,708 INFO L87 Difference]: Start difference. First operand 419 states and 419 transitions. Second operand 65 states. [2020-07-20 01:54:08,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:08,562 INFO L93 Difference]: Finished difference Result 429 states and 429 transitions. [2020-07-20 01:54:08,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-07-20 01:54:08,562 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 416 [2020-07-20 01:54:08,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:08,565 INFO L225 Difference]: With dead ends: 429 [2020-07-20 01:54:08,565 INFO L226 Difference]: Without dead ends: 427 [2020-07-20 01:54:08,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1846, Invalid=2444, Unknown=0, NotChecked=0, Total=4290 [2020-07-20 01:54:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-07-20 01:54:08,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2020-07-20 01:54:08,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-07-20 01:54:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2020-07-20 01:54:08,573 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 416 [2020-07-20 01:54:08,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:08,574 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2020-07-20 01:54:08,574 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-07-20 01:54:08,574 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2020-07-20 01:54:08,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-07-20 01:54:08,576 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:08,577 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:08,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-07-20 01:54:08,786 INFO L427 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:08,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:08,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1308456168, now seen corresponding path program 59 times [2020-07-20 01:54:08,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:08,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046753585] [2020-07-20 01:54:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 118 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2020-07-20 01:54:10,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046753585] [2020-07-20 01:54:10,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532307430] [2020-07-20 01:54:10,968 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@64bd3afd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:11,070 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@64bd3afd issued 4 check-sat command(s) [2020-07-20 01:54:11,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:11,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 63 conjunts are in the unsatisfiable core [2020-07-20 01:54:11,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:11,097 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:11,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 118 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2020-07-20 01:54:11,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:11,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 66 [2020-07-20 01:54:11,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965661948] [2020-07-20 01:54:11,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-07-20 01:54:11,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:11,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-07-20 01:54:11,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1901, Invalid=2389, Unknown=0, NotChecked=0, Total=4290 [2020-07-20 01:54:11,276 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand 66 states. [2020-07-20 01:54:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:12,318 INFO L93 Difference]: Finished difference Result 436 states and 436 transitions. [2020-07-20 01:54:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-07-20 01:54:12,319 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 423 [2020-07-20 01:54:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:12,321 INFO L225 Difference]: With dead ends: 436 [2020-07-20 01:54:12,321 INFO L226 Difference]: Without dead ends: 434 [2020-07-20 01:54:12,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1907, Invalid=2515, Unknown=0, NotChecked=0, Total=4422 [2020-07-20 01:54:12,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-07-20 01:54:12,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2020-07-20 01:54:12,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-07-20 01:54:12,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 433 transitions. [2020-07-20 01:54:12,332 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 433 transitions. Word has length 423 [2020-07-20 01:54:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:12,332 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 433 transitions. [2020-07-20 01:54:12,332 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-07-20 01:54:12,333 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 433 transitions. [2020-07-20 01:54:12,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2020-07-20 01:54:12,335 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:12,336 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:12,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-07-20 01:54:12,550 INFO L427 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:12,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:12,550 INFO L82 PathProgramCache]: Analyzing trace with hash -110433931, now seen corresponding path program 60 times [2020-07-20 01:54:12,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:12,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23728605] [2020-07-20 01:54:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:14,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 120 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2020-07-20 01:54:14,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23728605] [2020-07-20 01:54:14,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067148432] [2020-07-20 01:54:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d80c60d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:14,921 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d80c60d issued 4 check-sat command(s) [2020-07-20 01:54:14,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:14,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 64 conjunts are in the unsatisfiable core [2020-07-20 01:54:14,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:14,949 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 120 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2020-07-20 01:54:15,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:15,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 67 [2020-07-20 01:54:15,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769830352] [2020-07-20 01:54:15,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-07-20 01:54:15,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:15,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-07-20 01:54:15,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1963, Invalid=2459, Unknown=0, NotChecked=0, Total=4422 [2020-07-20 01:54:15,120 INFO L87 Difference]: Start difference. First operand 433 states and 433 transitions. Second operand 67 states. [2020-07-20 01:54:16,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:16,036 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2020-07-20 01:54:16,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-07-20 01:54:16,037 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 430 [2020-07-20 01:54:16,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:16,039 INFO L225 Difference]: With dead ends: 443 [2020-07-20 01:54:16,040 INFO L226 Difference]: Without dead ends: 441 [2020-07-20 01:54:16,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1969, Invalid=2587, Unknown=0, NotChecked=0, Total=4556 [2020-07-20 01:54:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-07-20 01:54:16,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2020-07-20 01:54:16,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-07-20 01:54:16,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 440 transitions. [2020-07-20 01:54:16,048 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 440 transitions. Word has length 430 [2020-07-20 01:54:16,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:16,048 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 440 transitions. [2020-07-20 01:54:16,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-07-20 01:54:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 440 transitions. [2020-07-20 01:54:16,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-07-20 01:54:16,051 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:16,051 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:16,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:16,266 INFO L427 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:16,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:16,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1220062280, now seen corresponding path program 61 times [2020-07-20 01:54:16,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:16,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967491915] [2020-07-20 01:54:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 122 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2020-07-20 01:54:18,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967491915] [2020-07-20 01:54:18,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096941431] [2020-07-20 01:54:18,616 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7647a566 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:18,721 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7647a566 issued 4 check-sat command(s) [2020-07-20 01:54:18,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:18,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 65 conjunts are in the unsatisfiable core [2020-07-20 01:54:18,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:18,746 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 122 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2020-07-20 01:54:18,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:18,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 68 [2020-07-20 01:54:18,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369108112] [2020-07-20 01:54:18,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-07-20 01:54:18,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:18,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-07-20 01:54:18,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2026, Invalid=2530, Unknown=0, NotChecked=0, Total=4556 [2020-07-20 01:54:18,906 INFO L87 Difference]: Start difference. First operand 440 states and 440 transitions. Second operand 68 states. [2020-07-20 01:54:19,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:19,854 INFO L93 Difference]: Finished difference Result 450 states and 450 transitions. [2020-07-20 01:54:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-07-20 01:54:19,855 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 437 [2020-07-20 01:54:19,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:19,858 INFO L225 Difference]: With dead ends: 450 [2020-07-20 01:54:19,858 INFO L226 Difference]: Without dead ends: 448 [2020-07-20 01:54:19,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2032, Invalid=2660, Unknown=0, NotChecked=0, Total=4692 [2020-07-20 01:54:19,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-07-20 01:54:19,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 447. [2020-07-20 01:54:19,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-07-20 01:54:19,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 447 transitions. [2020-07-20 01:54:19,867 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 447 transitions. Word has length 437 [2020-07-20 01:54:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:19,869 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 447 transitions. [2020-07-20 01:54:19,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-07-20 01:54:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 447 transitions. [2020-07-20 01:54:19,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-07-20 01:54:19,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:19,871 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:20,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:20,072 INFO L427 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:20,073 INFO L82 PathProgramCache]: Analyzing trace with hash -614160875, now seen corresponding path program 62 times [2020-07-20 01:54:20,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:20,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250072257] [2020-07-20 01:54:20,074 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 124 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2020-07-20 01:54:22,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250072257] [2020-07-20 01:54:22,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924680018] [2020-07-20 01:54:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3de7eed9 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:22,629 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3de7eed9 issued 4 check-sat command(s) [2020-07-20 01:54:22,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:22,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 66 conjunts are in the unsatisfiable core [2020-07-20 01:54:22,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:22,659 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 124 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2020-07-20 01:54:22,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:22,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 69 [2020-07-20 01:54:22,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101565345] [2020-07-20 01:54:22,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-07-20 01:54:22,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:22,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-07-20 01:54:22,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2090, Invalid=2602, Unknown=0, NotChecked=0, Total=4692 [2020-07-20 01:54:22,854 INFO L87 Difference]: Start difference. First operand 447 states and 447 transitions. Second operand 69 states. [2020-07-20 01:54:23,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:23,782 INFO L93 Difference]: Finished difference Result 457 states and 457 transitions. [2020-07-20 01:54:23,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-20 01:54:23,783 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 444 [2020-07-20 01:54:23,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:23,785 INFO L225 Difference]: With dead ends: 457 [2020-07-20 01:54:23,786 INFO L226 Difference]: Without dead ends: 455 [2020-07-20 01:54:23,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=2096, Invalid=2734, Unknown=0, NotChecked=0, Total=4830 [2020-07-20 01:54:23,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-07-20 01:54:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 454. [2020-07-20 01:54:23,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-07-20 01:54:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 454 transitions. [2020-07-20 01:54:23,793 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 454 transitions. Word has length 444 [2020-07-20 01:54:23,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:23,793 INFO L479 AbstractCegarLoop]: Abstraction has 454 states and 454 transitions. [2020-07-20 01:54:23,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-07-20 01:54:23,793 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 454 transitions. [2020-07-20 01:54:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-07-20 01:54:23,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:23,796 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:24,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:24,011 INFO L427 AbstractCegarLoop]: === Iteration 64 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:24,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:24,011 INFO L82 PathProgramCache]: Analyzing trace with hash 911178664, now seen corresponding path program 63 times [2020-07-20 01:54:24,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:24,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613140161] [2020-07-20 01:54:24,012 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 126 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2020-07-20 01:54:26,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613140161] [2020-07-20 01:54:26,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320943652] [2020-07-20 01:54:26,662 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2618211a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:26,781 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2618211a issued 4 check-sat command(s) [2020-07-20 01:54:26,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:26,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 67 conjunts are in the unsatisfiable core [2020-07-20 01:54:26,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:26,813 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 126 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2020-07-20 01:54:27,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:27,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 70 [2020-07-20 01:54:27,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506392022] [2020-07-20 01:54:27,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-07-20 01:54:27,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:27,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-07-20 01:54:27,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2155, Invalid=2675, Unknown=0, NotChecked=0, Total=4830 [2020-07-20 01:54:27,025 INFO L87 Difference]: Start difference. First operand 454 states and 454 transitions. Second operand 70 states. [2020-07-20 01:54:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:27,976 INFO L93 Difference]: Finished difference Result 464 states and 464 transitions. [2020-07-20 01:54:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-07-20 01:54:27,977 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 451 [2020-07-20 01:54:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:27,980 INFO L225 Difference]: With dead ends: 464 [2020-07-20 01:54:27,980 INFO L226 Difference]: Without dead ends: 462 [2020-07-20 01:54:27,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2161, Invalid=2809, Unknown=0, NotChecked=0, Total=4970 [2020-07-20 01:54:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-07-20 01:54:27,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2020-07-20 01:54:27,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-07-20 01:54:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 461 transitions. [2020-07-20 01:54:27,989 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 461 transitions. Word has length 451 [2020-07-20 01:54:27,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:27,990 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 461 transitions. [2020-07-20 01:54:27,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-07-20 01:54:27,990 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 461 transitions. [2020-07-20 01:54:27,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-07-20 01:54:27,993 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:27,993 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:28,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:28,208 INFO L427 AbstractCegarLoop]: === Iteration 65 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:28,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:28,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1597519179, now seen corresponding path program 64 times [2020-07-20 01:54:28,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:28,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023792462] [2020-07-20 01:54:28,210 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 128 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2020-07-20 01:54:30,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023792462] [2020-07-20 01:54:30,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348777520] [2020-07-20 01:54:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6a8c1269 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:30,960 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6a8c1269 issued 4 check-sat command(s) [2020-07-20 01:54:30,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:30,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-20 01:54:30,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:30,992 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 128 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2020-07-20 01:54:31,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:31,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 71 [2020-07-20 01:54:31,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861432329] [2020-07-20 01:54:31,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-07-20 01:54:31,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:31,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-07-20 01:54:31,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2221, Invalid=2749, Unknown=0, NotChecked=0, Total=4970 [2020-07-20 01:54:31,198 INFO L87 Difference]: Start difference. First operand 461 states and 461 transitions. Second operand 71 states. [2020-07-20 01:54:32,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:32,227 INFO L93 Difference]: Finished difference Result 471 states and 471 transitions. [2020-07-20 01:54:32,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-07-20 01:54:32,228 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 458 [2020-07-20 01:54:32,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:32,230 INFO L225 Difference]: With dead ends: 471 [2020-07-20 01:54:32,230 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 01:54:32,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2227, Invalid=2885, Unknown=0, NotChecked=0, Total=5112 [2020-07-20 01:54:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 01:54:32,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 468. [2020-07-20 01:54:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-07-20 01:54:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 468 transitions. [2020-07-20 01:54:32,238 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 468 transitions. Word has length 458 [2020-07-20 01:54:32,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:32,239 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 468 transitions. [2020-07-20 01:54:32,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-07-20 01:54:32,239 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 468 transitions. [2020-07-20 01:54:32,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-07-20 01:54:32,242 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:32,242 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:32,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:32,456 INFO L427 AbstractCegarLoop]: === Iteration 66 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:32,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1030233336, now seen corresponding path program 65 times [2020-07-20 01:54:32,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:32,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374025557] [2020-07-20 01:54:32,458 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:35,197 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 130 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2020-07-20 01:54:35,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374025557] [2020-07-20 01:54:35,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489898304] [2020-07-20 01:54:35,198 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@604f4039 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:35,309 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@604f4039 issued 4 check-sat command(s) [2020-07-20 01:54:35,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:35,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 69 conjunts are in the unsatisfiable core [2020-07-20 01:54:35,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:35,335 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 130 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2020-07-20 01:54:35,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:35,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 72 [2020-07-20 01:54:35,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365536431] [2020-07-20 01:54:35,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-07-20 01:54:35,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:35,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-07-20 01:54:35,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2288, Invalid=2824, Unknown=0, NotChecked=0, Total=5112 [2020-07-20 01:54:35,525 INFO L87 Difference]: Start difference. First operand 468 states and 468 transitions. Second operand 72 states. [2020-07-20 01:54:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:36,607 INFO L93 Difference]: Finished difference Result 478 states and 478 transitions. [2020-07-20 01:54:36,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-07-20 01:54:36,608 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 465 [2020-07-20 01:54:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:36,612 INFO L225 Difference]: With dead ends: 478 [2020-07-20 01:54:36,612 INFO L226 Difference]: Without dead ends: 476 [2020-07-20 01:54:36,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2294, Invalid=2962, Unknown=0, NotChecked=0, Total=5256 [2020-07-20 01:54:36,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-07-20 01:54:36,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2020-07-20 01:54:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-07-20 01:54:36,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2020-07-20 01:54:36,621 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 465 [2020-07-20 01:54:36,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:36,621 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2020-07-20 01:54:36,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-07-20 01:54:36,621 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2020-07-20 01:54:36,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-07-20 01:54:36,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:36,623 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:36,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-07-20 01:54:36,824 INFO L427 AbstractCegarLoop]: === Iteration 67 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:36,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:36,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1057073323, now seen corresponding path program 66 times [2020-07-20 01:54:36,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:36,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656262677] [2020-07-20 01:54:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 132 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2020-07-20 01:54:39,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656262677] [2020-07-20 01:54:39,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309472350] [2020-07-20 01:54:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@73786061 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:39,714 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@73786061 issued 4 check-sat command(s) [2020-07-20 01:54:39,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:39,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 70 conjunts are in the unsatisfiable core [2020-07-20 01:54:39,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:39,741 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:39,950 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 132 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2020-07-20 01:54:39,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:39,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 73 [2020-07-20 01:54:39,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732196223] [2020-07-20 01:54:39,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-07-20 01:54:39,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:39,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-07-20 01:54:39,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2356, Invalid=2900, Unknown=0, NotChecked=0, Total=5256 [2020-07-20 01:54:39,952 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand 73 states. [2020-07-20 01:54:41,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:41,003 INFO L93 Difference]: Finished difference Result 485 states and 485 transitions. [2020-07-20 01:54:41,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-07-20 01:54:41,004 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 472 [2020-07-20 01:54:41,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:41,006 INFO L225 Difference]: With dead ends: 485 [2020-07-20 01:54:41,006 INFO L226 Difference]: Without dead ends: 483 [2020-07-20 01:54:41,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2362, Invalid=3040, Unknown=0, NotChecked=0, Total=5402 [2020-07-20 01:54:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-07-20 01:54:41,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 482. [2020-07-20 01:54:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-07-20 01:54:41,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 482 transitions. [2020-07-20 01:54:41,016 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 482 transitions. Word has length 472 [2020-07-20 01:54:41,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:41,016 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 482 transitions. [2020-07-20 01:54:41,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-07-20 01:54:41,017 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 482 transitions. [2020-07-20 01:54:41,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-07-20 01:54:41,019 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:41,020 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:41,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-07-20 01:54:41,235 INFO L427 AbstractCegarLoop]: === Iteration 68 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:41,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:41,236 INFO L82 PathProgramCache]: Analyzing trace with hash 719839848, now seen corresponding path program 67 times [2020-07-20 01:54:41,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:41,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264024203] [2020-07-20 01:54:41,238 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 134 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2020-07-20 01:54:44,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264024203] [2020-07-20 01:54:44,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441008368] [2020-07-20 01:54:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45f9e808 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:44,238 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45f9e808 issued 4 check-sat command(s) [2020-07-20 01:54:44,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:44,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 71 conjunts are in the unsatisfiable core [2020-07-20 01:54:44,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:44,268 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:44,447 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 134 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2020-07-20 01:54:44,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:44,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 74 [2020-07-20 01:54:44,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779081328] [2020-07-20 01:54:44,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-07-20 01:54:44,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:44,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-07-20 01:54:44,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2425, Invalid=2977, Unknown=0, NotChecked=0, Total=5402 [2020-07-20 01:54:44,450 INFO L87 Difference]: Start difference. First operand 482 states and 482 transitions. Second operand 74 states. [2020-07-20 01:54:45,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:45,451 INFO L93 Difference]: Finished difference Result 492 states and 492 transitions. [2020-07-20 01:54:45,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-07-20 01:54:45,452 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 479 [2020-07-20 01:54:45,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:45,455 INFO L225 Difference]: With dead ends: 492 [2020-07-20 01:54:45,455 INFO L226 Difference]: Without dead ends: 490 [2020-07-20 01:54:45,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2431, Invalid=3119, Unknown=0, NotChecked=0, Total=5550 [2020-07-20 01:54:45,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-07-20 01:54:45,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 489. [2020-07-20 01:54:45,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-07-20 01:54:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 489 transitions. [2020-07-20 01:54:45,464 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 489 transitions. Word has length 479 [2020-07-20 01:54:45,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:45,464 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 489 transitions. [2020-07-20 01:54:45,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-07-20 01:54:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 489 transitions. [2020-07-20 01:54:45,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-07-20 01:54:45,467 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:45,467 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:45,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:45,683 INFO L427 AbstractCegarLoop]: === Iteration 69 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:45,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1911704565, now seen corresponding path program 68 times [2020-07-20 01:54:45,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:45,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8253837] [2020-07-20 01:54:45,685 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:48,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 136 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2020-07-20 01:54:48,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8253837] [2020-07-20 01:54:48,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358008616] [2020-07-20 01:54:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a95d2f3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:48,806 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@a95d2f3 issued 4 check-sat command(s) [2020-07-20 01:54:48,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:48,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 72 conjunts are in the unsatisfiable core [2020-07-20 01:54:48,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:48,828 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 136 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2020-07-20 01:54:49,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:49,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 75 [2020-07-20 01:54:49,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491921376] [2020-07-20 01:54:49,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-07-20 01:54:49,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:49,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-07-20 01:54:49,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2495, Invalid=3055, Unknown=0, NotChecked=0, Total=5550 [2020-07-20 01:54:49,017 INFO L87 Difference]: Start difference. First operand 489 states and 489 transitions. Second operand 75 states. [2020-07-20 01:54:50,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:50,026 INFO L93 Difference]: Finished difference Result 499 states and 499 transitions. [2020-07-20 01:54:50,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-20 01:54:50,026 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 486 [2020-07-20 01:54:50,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:50,029 INFO L225 Difference]: With dead ends: 499 [2020-07-20 01:54:50,029 INFO L226 Difference]: Without dead ends: 497 [2020-07-20 01:54:50,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2501, Invalid=3199, Unknown=0, NotChecked=0, Total=5700 [2020-07-20 01:54:50,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-07-20 01:54:50,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 496. [2020-07-20 01:54:50,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-07-20 01:54:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 496 transitions. [2020-07-20 01:54:50,037 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 496 transitions. Word has length 486 [2020-07-20 01:54:50,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:50,037 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 496 transitions. [2020-07-20 01:54:50,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-07-20 01:54:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 496 transitions. [2020-07-20 01:54:50,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2020-07-20 01:54:50,040 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:50,040 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:50,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2020-07-20 01:54:50,252 INFO L427 AbstractCegarLoop]: === Iteration 70 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:50,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:50,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1642759736, now seen corresponding path program 69 times [2020-07-20 01:54:50,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:50,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502271496] [2020-07-20 01:54:50,254 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 138 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2020-07-20 01:54:53,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502271496] [2020-07-20 01:54:53,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942525430] [2020-07-20 01:54:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@54a8dd77 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:53,449 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@54a8dd77 issued 4 check-sat command(s) [2020-07-20 01:54:53,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:53,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 73 conjunts are in the unsatisfiable core [2020-07-20 01:54:53,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:53,482 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:53,730 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 138 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2020-07-20 01:54:53,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:53,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 76 [2020-07-20 01:54:53,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101470020] [2020-07-20 01:54:53,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-07-20 01:54:53,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:53,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-07-20 01:54:53,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2566, Invalid=3134, Unknown=0, NotChecked=0, Total=5700 [2020-07-20 01:54:53,733 INFO L87 Difference]: Start difference. First operand 496 states and 496 transitions. Second operand 76 states. [2020-07-20 01:54:54,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:54,746 INFO L93 Difference]: Finished difference Result 506 states and 506 transitions. [2020-07-20 01:54:54,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-07-20 01:54:54,747 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 493 [2020-07-20 01:54:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:54,750 INFO L225 Difference]: With dead ends: 506 [2020-07-20 01:54:54,750 INFO L226 Difference]: Without dead ends: 504 [2020-07-20 01:54:54,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2572, Invalid=3280, Unknown=0, NotChecked=0, Total=5852 [2020-07-20 01:54:54,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-07-20 01:54:54,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2020-07-20 01:54:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-07-20 01:54:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 503 transitions. [2020-07-20 01:54:54,758 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 503 transitions. Word has length 493 [2020-07-20 01:54:54,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:54,758 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 503 transitions. [2020-07-20 01:54:54,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-07-20 01:54:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 503 transitions. [2020-07-20 01:54:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-07-20 01:54:54,761 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:54,762 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 71, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:54,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-07-20 01:54:54,967 INFO L427 AbstractCegarLoop]: === Iteration 71 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:54,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:54,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1208854677, now seen corresponding path program 70 times [2020-07-20 01:54:54,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:54,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485876093] [2020-07-20 01:54:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:54:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 140 proven. 7385 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2020-07-20 01:54:58,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485876093] [2020-07-20 01:54:58,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157527042] [2020-07-20 01:54:58,135 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8279481 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:54:58,253 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8279481 issued 4 check-sat command(s) [2020-07-20 01:54:58,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:54:58,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 74 conjunts are in the unsatisfiable core [2020-07-20 01:54:58,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:54:58,282 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:54:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 140 proven. 7385 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2020-07-20 01:54:58,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:54:58,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 77 [2020-07-20 01:54:58,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114065872] [2020-07-20 01:54:58,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-07-20 01:54:58,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:54:58,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-07-20 01:54:58,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2638, Invalid=3214, Unknown=0, NotChecked=0, Total=5852 [2020-07-20 01:54:58,494 INFO L87 Difference]: Start difference. First operand 503 states and 503 transitions. Second operand 77 states. [2020-07-20 01:54:59,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:54:59,605 INFO L93 Difference]: Finished difference Result 513 states and 513 transitions. [2020-07-20 01:54:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-07-20 01:54:59,606 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 500 [2020-07-20 01:54:59,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:54:59,608 INFO L225 Difference]: With dead ends: 513 [2020-07-20 01:54:59,608 INFO L226 Difference]: Without dead ends: 511 [2020-07-20 01:54:59,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2644, Invalid=3362, Unknown=0, NotChecked=0, Total=6006 [2020-07-20 01:54:59,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-07-20 01:54:59,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 510. [2020-07-20 01:54:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-07-20 01:54:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 510 transitions. [2020-07-20 01:54:59,615 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 510 transitions. Word has length 500 [2020-07-20 01:54:59,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:54:59,616 INFO L479 AbstractCegarLoop]: Abstraction has 510 states and 510 transitions. [2020-07-20 01:54:59,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-07-20 01:54:59,616 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 510 transitions. [2020-07-20 01:54:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2020-07-20 01:54:59,618 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:54:59,618 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 72, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:54:59,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2020-07-20 01:54:59,833 INFO L427 AbstractCegarLoop]: === Iteration 72 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:54:59,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:54:59,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1669945048, now seen corresponding path program 71 times [2020-07-20 01:54:59,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:54:59,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692533091] [2020-07-20 01:54:59,835 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:54:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 142 proven. 7597 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2020-07-20 01:55:03,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692533091] [2020-07-20 01:55:03,127 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329460739] [2020-07-20 01:55:03,127 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38cb13e7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:03,252 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@38cb13e7 issued 4 check-sat command(s) [2020-07-20 01:55:03,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:03,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 75 conjunts are in the unsatisfiable core [2020-07-20 01:55:03,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:03,275 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:03,491 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 142 proven. 7597 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2020-07-20 01:55:03,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:03,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 78 [2020-07-20 01:55:03,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455062643] [2020-07-20 01:55:03,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-07-20 01:55:03,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:03,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-07-20 01:55:03,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2711, Invalid=3295, Unknown=0, NotChecked=0, Total=6006 [2020-07-20 01:55:03,493 INFO L87 Difference]: Start difference. First operand 510 states and 510 transitions. Second operand 78 states. [2020-07-20 01:55:04,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:04,723 INFO L93 Difference]: Finished difference Result 520 states and 520 transitions. [2020-07-20 01:55:04,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-07-20 01:55:04,724 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 507 [2020-07-20 01:55:04,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:04,727 INFO L225 Difference]: With dead ends: 520 [2020-07-20 01:55:04,727 INFO L226 Difference]: Without dead ends: 518 [2020-07-20 01:55:04,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2717, Invalid=3445, Unknown=0, NotChecked=0, Total=6162 [2020-07-20 01:55:04,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-07-20 01:55:04,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 517. [2020-07-20 01:55:04,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-07-20 01:55:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 517 transitions. [2020-07-20 01:55:04,735 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 517 transitions. Word has length 507 [2020-07-20 01:55:04,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:04,735 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 517 transitions. [2020-07-20 01:55:04,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-07-20 01:55:04,736 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 517 transitions. [2020-07-20 01:55:04,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-07-20 01:55:04,739 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:04,739 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 73, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:04,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:04,955 INFO L427 AbstractCegarLoop]: === Iteration 73 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:04,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:04,956 INFO L82 PathProgramCache]: Analyzing trace with hash -700814027, now seen corresponding path program 72 times [2020-07-20 01:55:04,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:04,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523400852] [2020-07-20 01:55:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 144 proven. 7812 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2020-07-20 01:55:08,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523400852] [2020-07-20 01:55:08,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273242178] [2020-07-20 01:55:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@433cbffd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:08,471 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@433cbffd issued 4 check-sat command(s) [2020-07-20 01:55:08,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:08,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 76 conjunts are in the unsatisfiable core [2020-07-20 01:55:08,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:08,497 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 144 proven. 7812 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2020-07-20 01:55:08,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:08,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 79 [2020-07-20 01:55:08,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294265906] [2020-07-20 01:55:08,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-07-20 01:55:08,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:08,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-07-20 01:55:08,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2785, Invalid=3377, Unknown=0, NotChecked=0, Total=6162 [2020-07-20 01:55:08,720 INFO L87 Difference]: Start difference. First operand 517 states and 517 transitions. Second operand 79 states. [2020-07-20 01:55:09,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:09,838 INFO L93 Difference]: Finished difference Result 527 states and 527 transitions. [2020-07-20 01:55:09,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-07-20 01:55:09,839 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 514 [2020-07-20 01:55:09,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:09,841 INFO L225 Difference]: With dead ends: 527 [2020-07-20 01:55:09,841 INFO L226 Difference]: Without dead ends: 525 [2020-07-20 01:55:09,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2791, Invalid=3529, Unknown=0, NotChecked=0, Total=6320 [2020-07-20 01:55:09,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-07-20 01:55:09,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 524. [2020-07-20 01:55:09,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-07-20 01:55:09,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 524 transitions. [2020-07-20 01:55:09,848 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 524 transitions. Word has length 514 [2020-07-20 01:55:09,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:09,849 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 524 transitions. [2020-07-20 01:55:09,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-07-20 01:55:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 524 transitions. [2020-07-20 01:55:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-07-20 01:55:09,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:09,852 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 74, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:10,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:10,053 INFO L427 AbstractCegarLoop]: === Iteration 74 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:10,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:10,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1474392200, now seen corresponding path program 73 times [2020-07-20 01:55:10,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:10,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327494364] [2020-07-20 01:55:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:13,521 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 146 proven. 8030 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2020-07-20 01:55:13,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327494364] [2020-07-20 01:55:13,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178392104] [2020-07-20 01:55:13,522 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65a20742 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:13,641 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65a20742 issued 4 check-sat command(s) [2020-07-20 01:55:13,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:13,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 77 conjunts are in the unsatisfiable core [2020-07-20 01:55:13,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:13,668 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:13,903 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 146 proven. 8030 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2020-07-20 01:55:13,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:13,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 80 [2020-07-20 01:55:13,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462819662] [2020-07-20 01:55:13,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-07-20 01:55:13,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:13,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-07-20 01:55:13,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2860, Invalid=3460, Unknown=0, NotChecked=0, Total=6320 [2020-07-20 01:55:13,905 INFO L87 Difference]: Start difference. First operand 524 states and 524 transitions. Second operand 80 states. [2020-07-20 01:55:15,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:15,017 INFO L93 Difference]: Finished difference Result 534 states and 534 transitions. [2020-07-20 01:55:15,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-07-20 01:55:15,018 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 521 [2020-07-20 01:55:15,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:15,021 INFO L225 Difference]: With dead ends: 534 [2020-07-20 01:55:15,021 INFO L226 Difference]: Without dead ends: 532 [2020-07-20 01:55:15,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2866, Invalid=3614, Unknown=0, NotChecked=0, Total=6480 [2020-07-20 01:55:15,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-07-20 01:55:15,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 531. [2020-07-20 01:55:15,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-07-20 01:55:15,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 531 transitions. [2020-07-20 01:55:15,030 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 531 transitions. Word has length 521 [2020-07-20 01:55:15,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:15,030 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 531 transitions. [2020-07-20 01:55:15,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-07-20 01:55:15,031 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 531 transitions. [2020-07-20 01:55:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-07-20 01:55:15,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:15,034 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 75, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:15,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:15,235 INFO L427 AbstractCegarLoop]: === Iteration 75 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:15,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1306696149, now seen corresponding path program 74 times [2020-07-20 01:55:15,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:15,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368189839] [2020-07-20 01:55:15,237 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 148 proven. 8251 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2020-07-20 01:55:18,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368189839] [2020-07-20 01:55:18,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120775700] [2020-07-20 01:55:18,803 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@62cc6001 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:18,929 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@62cc6001 issued 4 check-sat command(s) [2020-07-20 01:55:18,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:18,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 78 conjunts are in the unsatisfiable core [2020-07-20 01:55:18,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:18,953 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:19,181 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 148 proven. 8251 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2020-07-20 01:55:19,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:19,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 81 [2020-07-20 01:55:19,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904346275] [2020-07-20 01:55:19,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2020-07-20 01:55:19,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:19,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2020-07-20 01:55:19,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2936, Invalid=3544, Unknown=0, NotChecked=0, Total=6480 [2020-07-20 01:55:19,183 INFO L87 Difference]: Start difference. First operand 531 states and 531 transitions. Second operand 81 states. [2020-07-20 01:55:20,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:20,338 INFO L93 Difference]: Finished difference Result 541 states and 541 transitions. [2020-07-20 01:55:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-07-20 01:55:20,339 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 528 [2020-07-20 01:55:20,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:20,342 INFO L225 Difference]: With dead ends: 541 [2020-07-20 01:55:20,342 INFO L226 Difference]: Without dead ends: 539 [2020-07-20 01:55:20,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2942, Invalid=3700, Unknown=0, NotChecked=0, Total=6642 [2020-07-20 01:55:20,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-07-20 01:55:20,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2020-07-20 01:55:20,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-07-20 01:55:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2020-07-20 01:55:20,350 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 528 [2020-07-20 01:55:20,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:20,350 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2020-07-20 01:55:20,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 81 states. [2020-07-20 01:55:20,350 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2020-07-20 01:55:20,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-07-20 01:55:20,353 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:20,353 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 76, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:20,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2020-07-20 01:55:20,554 INFO L427 AbstractCegarLoop]: === Iteration 76 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:20,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:20,555 INFO L82 PathProgramCache]: Analyzing trace with hash 330026984, now seen corresponding path program 75 times [2020-07-20 01:55:20,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:20,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654585356] [2020-07-20 01:55:20,556 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:20,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 150 proven. 8475 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2020-07-20 01:55:24,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654585356] [2020-07-20 01:55:24,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819507044] [2020-07-20 01:55:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4990596d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:24,355 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4990596d issued 4 check-sat command(s) [2020-07-20 01:55:24,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:24,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 79 conjunts are in the unsatisfiable core [2020-07-20 01:55:24,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:24,387 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 150 proven. 8475 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2020-07-20 01:55:24,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:24,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 82 [2020-07-20 01:55:24,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161542260] [2020-07-20 01:55:24,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2020-07-20 01:55:24,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:24,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2020-07-20 01:55:24,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3013, Invalid=3629, Unknown=0, NotChecked=0, Total=6642 [2020-07-20 01:55:24,615 INFO L87 Difference]: Start difference. First operand 538 states and 538 transitions. Second operand 82 states. [2020-07-20 01:55:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:25,838 INFO L93 Difference]: Finished difference Result 548 states and 548 transitions. [2020-07-20 01:55:25,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-07-20 01:55:25,839 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 535 [2020-07-20 01:55:25,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:25,842 INFO L225 Difference]: With dead ends: 548 [2020-07-20 01:55:25,842 INFO L226 Difference]: Without dead ends: 546 [2020-07-20 01:55:25,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=3019, Invalid=3787, Unknown=0, NotChecked=0, Total=6806 [2020-07-20 01:55:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2020-07-20 01:55:25,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2020-07-20 01:55:25,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-07-20 01:55:25,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 545 transitions. [2020-07-20 01:55:25,850 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 545 transitions. Word has length 535 [2020-07-20 01:55:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:25,850 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 545 transitions. [2020-07-20 01:55:25,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 82 states. [2020-07-20 01:55:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 545 transitions. [2020-07-20 01:55:25,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-07-20 01:55:25,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:25,853 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 77, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:26,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:26,054 INFO L427 AbstractCegarLoop]: === Iteration 77 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:26,055 INFO L82 PathProgramCache]: Analyzing trace with hash 519057013, now seen corresponding path program 76 times [2020-07-20 01:55:26,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:26,055 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653333563] [2020-07-20 01:55:26,056 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:29,965 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 152 proven. 8702 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2020-07-20 01:55:29,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653333563] [2020-07-20 01:55:29,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525674238] [2020-07-20 01:55:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3f8e5ee0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:30,103 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3f8e5ee0 issued 4 check-sat command(s) [2020-07-20 01:55:30,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:30,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 80 conjunts are in the unsatisfiable core [2020-07-20 01:55:30,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:30,137 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 152 proven. 8702 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2020-07-20 01:55:30,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:30,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 83 [2020-07-20 01:55:30,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146376210] [2020-07-20 01:55:30,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2020-07-20 01:55:30,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:30,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2020-07-20 01:55:30,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3091, Invalid=3715, Unknown=0, NotChecked=0, Total=6806 [2020-07-20 01:55:30,352 INFO L87 Difference]: Start difference. First operand 545 states and 545 transitions. Second operand 83 states. [2020-07-20 01:55:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:31,489 INFO L93 Difference]: Finished difference Result 555 states and 555 transitions. [2020-07-20 01:55:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-07-20 01:55:31,490 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 542 [2020-07-20 01:55:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:31,493 INFO L225 Difference]: With dead ends: 555 [2020-07-20 01:55:31,493 INFO L226 Difference]: Without dead ends: 553 [2020-07-20 01:55:31,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3097, Invalid=3875, Unknown=0, NotChecked=0, Total=6972 [2020-07-20 01:55:31,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-07-20 01:55:31,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2020-07-20 01:55:31,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-07-20 01:55:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 552 transitions. [2020-07-20 01:55:31,501 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 552 transitions. Word has length 542 [2020-07-20 01:55:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:31,501 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 552 transitions. [2020-07-20 01:55:31,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 83 states. [2020-07-20 01:55:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 552 transitions. [2020-07-20 01:55:31,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2020-07-20 01:55:31,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:31,504 INFO L422 BasicCegarLoop]: trace histogram [78, 78, 78, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:31,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:31,705 INFO L427 AbstractCegarLoop]: === Iteration 78 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:31,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:31,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2069117112, now seen corresponding path program 77 times [2020-07-20 01:55:31,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:31,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606829376] [2020-07-20 01:55:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:35,852 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 154 proven. 8932 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2020-07-20 01:55:35,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606829376] [2020-07-20 01:55:35,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393074228] [2020-07-20 01:55:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2896bb7b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:35,991 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2896bb7b issued 4 check-sat command(s) [2020-07-20 01:55:35,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:35,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 81 conjunts are in the unsatisfiable core [2020-07-20 01:55:35,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:36,015 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 154 proven. 8932 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2020-07-20 01:55:36,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:36,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 84 [2020-07-20 01:55:36,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828191837] [2020-07-20 01:55:36,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 84 states [2020-07-20 01:55:36,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:36,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2020-07-20 01:55:36,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3170, Invalid=3802, Unknown=0, NotChecked=0, Total=6972 [2020-07-20 01:55:36,244 INFO L87 Difference]: Start difference. First operand 552 states and 552 transitions. Second operand 84 states. [2020-07-20 01:55:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:37,530 INFO L93 Difference]: Finished difference Result 562 states and 562 transitions. [2020-07-20 01:55:37,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-07-20 01:55:37,531 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 549 [2020-07-20 01:55:37,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:37,534 INFO L225 Difference]: With dead ends: 562 [2020-07-20 01:55:37,534 INFO L226 Difference]: Without dead ends: 560 [2020-07-20 01:55:37,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3176, Invalid=3964, Unknown=0, NotChecked=0, Total=7140 [2020-07-20 01:55:37,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-07-20 01:55:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2020-07-20 01:55:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-20 01:55:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 559 transitions. [2020-07-20 01:55:37,542 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 559 transitions. Word has length 549 [2020-07-20 01:55:37,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:37,542 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 559 transitions. [2020-07-20 01:55:37,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 84 states. [2020-07-20 01:55:37,542 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 559 transitions. [2020-07-20 01:55:37,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-07-20 01:55:37,545 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:37,545 INFO L422 BasicCegarLoop]: trace histogram [79, 79, 79, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:37,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2020-07-20 01:55:37,746 INFO L427 AbstractCegarLoop]: === Iteration 79 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:37,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1748161771, now seen corresponding path program 78 times [2020-07-20 01:55:37,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:37,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095348637] [2020-07-20 01:55:37,748 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 156 proven. 9165 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2020-07-20 01:55:41,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095348637] [2020-07-20 01:55:41,783 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356454622] [2020-07-20 01:55:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5217ac8a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:41,914 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5217ac8a issued 4 check-sat command(s) [2020-07-20 01:55:41,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:41,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 82 conjunts are in the unsatisfiable core [2020-07-20 01:55:41,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:41,939 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 156 proven. 9165 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2020-07-20 01:55:42,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:42,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 85 [2020-07-20 01:55:42,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935452459] [2020-07-20 01:55:42,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2020-07-20 01:55:42,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:42,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2020-07-20 01:55:42,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3250, Invalid=3890, Unknown=0, NotChecked=0, Total=7140 [2020-07-20 01:55:42,172 INFO L87 Difference]: Start difference. First operand 559 states and 559 transitions. Second operand 85 states. [2020-07-20 01:55:43,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:43,449 INFO L93 Difference]: Finished difference Result 569 states and 569 transitions. [2020-07-20 01:55:43,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-07-20 01:55:43,450 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 556 [2020-07-20 01:55:43,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:43,453 INFO L225 Difference]: With dead ends: 569 [2020-07-20 01:55:43,453 INFO L226 Difference]: Without dead ends: 567 [2020-07-20 01:55:43,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3256, Invalid=4054, Unknown=0, NotChecked=0, Total=7310 [2020-07-20 01:55:43,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-07-20 01:55:43,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2020-07-20 01:55:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-07-20 01:55:43,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 566 transitions. [2020-07-20 01:55:43,462 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 566 transitions. Word has length 556 [2020-07-20 01:55:43,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:43,462 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 566 transitions. [2020-07-20 01:55:43,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 85 states. [2020-07-20 01:55:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 566 transitions. [2020-07-20 01:55:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-07-20 01:55:43,465 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:43,465 INFO L422 BasicCegarLoop]: trace histogram [80, 80, 80, 79, 79, 79, 79, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:43,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-07-20 01:55:43,666 INFO L427 AbstractCegarLoop]: === Iteration 80 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:43,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:43,666 INFO L82 PathProgramCache]: Analyzing trace with hash 825710248, now seen corresponding path program 79 times [2020-07-20 01:55:43,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:43,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015628838] [2020-07-20 01:55:43,667 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 158 proven. 9401 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2020-07-20 01:55:47,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015628838] [2020-07-20 01:55:47,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923303883] [2020-07-20 01:55:47,818 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c025fc5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:47,950 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c025fc5 issued 4 check-sat command(s) [2020-07-20 01:55:47,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:47,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 83 conjunts are in the unsatisfiable core [2020-07-20 01:55:47,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:47,975 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:48,227 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 158 proven. 9401 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2020-07-20 01:55:48,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:48,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 86 [2020-07-20 01:55:48,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634926014] [2020-07-20 01:55:48,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 86 states [2020-07-20 01:55:48,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:48,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2020-07-20 01:55:48,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3331, Invalid=3979, Unknown=0, NotChecked=0, Total=7310 [2020-07-20 01:55:48,230 INFO L87 Difference]: Start difference. First operand 566 states and 566 transitions. Second operand 86 states. [2020-07-20 01:55:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:49,466 INFO L93 Difference]: Finished difference Result 576 states and 576 transitions. [2020-07-20 01:55:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-07-20 01:55:49,467 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 563 [2020-07-20 01:55:49,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:49,469 INFO L225 Difference]: With dead ends: 576 [2020-07-20 01:55:49,469 INFO L226 Difference]: Without dead ends: 574 [2020-07-20 01:55:49,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3337, Invalid=4145, Unknown=0, NotChecked=0, Total=7482 [2020-07-20 01:55:49,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-20 01:55:49,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 573. [2020-07-20 01:55:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-07-20 01:55:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 573 transitions. [2020-07-20 01:55:49,478 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 573 transitions. Word has length 563 [2020-07-20 01:55:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:49,479 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 573 transitions. [2020-07-20 01:55:49,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 86 states. [2020-07-20 01:55:49,479 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 573 transitions. [2020-07-20 01:55:49,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-07-20 01:55:49,482 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:49,482 INFO L422 BasicCegarLoop]: trace histogram [81, 81, 81, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:49,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:49,683 INFO L427 AbstractCegarLoop]: === Iteration 81 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:49,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:49,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2057072715, now seen corresponding path program 80 times [2020-07-20 01:55:49,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:49,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965735769] [2020-07-20 01:55:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:55:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 160 proven. 9640 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2020-07-20 01:55:53,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965735769] [2020-07-20 01:55:53,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238891856] [2020-07-20 01:55:53,949 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@35482e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:54,086 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@35482e issued 4 check-sat command(s) [2020-07-20 01:55:54,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:55:54,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 84 conjunts are in the unsatisfiable core [2020-07-20 01:55:54,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:55:54,112 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:55:54,370 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 160 proven. 9640 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2020-07-20 01:55:54,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:55:54,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 87 [2020-07-20 01:55:54,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818153691] [2020-07-20 01:55:54,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2020-07-20 01:55:54,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:55:54,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2020-07-20 01:55:54,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3413, Invalid=4069, Unknown=0, NotChecked=0, Total=7482 [2020-07-20 01:55:54,372 INFO L87 Difference]: Start difference. First operand 573 states and 573 transitions. Second operand 87 states. [2020-07-20 01:55:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:55:55,643 INFO L93 Difference]: Finished difference Result 583 states and 583 transitions. [2020-07-20 01:55:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-07-20 01:55:55,644 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 570 [2020-07-20 01:55:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:55:55,648 INFO L225 Difference]: With dead ends: 583 [2020-07-20 01:55:55,648 INFO L226 Difference]: Without dead ends: 581 [2020-07-20 01:55:55,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=3419, Invalid=4237, Unknown=0, NotChecked=0, Total=7656 [2020-07-20 01:55:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-07-20 01:55:55,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2020-07-20 01:55:55,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 01:55:55,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 580 transitions. [2020-07-20 01:55:55,657 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 580 transitions. Word has length 570 [2020-07-20 01:55:55,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:55:55,657 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 580 transitions. [2020-07-20 01:55:55,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 87 states. [2020-07-20 01:55:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 580 transitions. [2020-07-20 01:55:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-07-20 01:55:55,660 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:55:55,660 INFO L422 BasicCegarLoop]: trace histogram [82, 82, 82, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:55:55,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:55:55,861 INFO L427 AbstractCegarLoop]: === Iteration 82 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:55:55,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:55:55,862 INFO L82 PathProgramCache]: Analyzing trace with hash -786137592, now seen corresponding path program 81 times [2020-07-20 01:55:55,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:55:55,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58923286] [2020-07-20 01:55:55,862 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:55:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:00,258 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 162 proven. 9882 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2020-07-20 01:56:00,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58923286] [2020-07-20 01:56:00,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937428611] [2020-07-20 01:56:00,259 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@89b906e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:00,411 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@89b906e issued 4 check-sat command(s) [2020-07-20 01:56:00,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:00,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 85 conjunts are in the unsatisfiable core [2020-07-20 01:56:00,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:00,436 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 162 proven. 9882 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2020-07-20 01:56:00,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:00,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 88 [2020-07-20 01:56:00,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527735904] [2020-07-20 01:56:00,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 88 states [2020-07-20 01:56:00,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:00,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2020-07-20 01:56:00,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3496, Invalid=4160, Unknown=0, NotChecked=0, Total=7656 [2020-07-20 01:56:00,685 INFO L87 Difference]: Start difference. First operand 580 states and 580 transitions. Second operand 88 states. [2020-07-20 01:56:02,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:02,056 INFO L93 Difference]: Finished difference Result 590 states and 590 transitions. [2020-07-20 01:56:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-07-20 01:56:02,057 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 577 [2020-07-20 01:56:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:02,060 INFO L225 Difference]: With dead ends: 590 [2020-07-20 01:56:02,060 INFO L226 Difference]: Without dead ends: 588 [2020-07-20 01:56:02,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=3502, Invalid=4330, Unknown=0, NotChecked=0, Total=7832 [2020-07-20 01:56:02,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-07-20 01:56:02,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2020-07-20 01:56:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-07-20 01:56:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 587 transitions. [2020-07-20 01:56:02,071 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 587 transitions. Word has length 577 [2020-07-20 01:56:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:02,072 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 587 transitions. [2020-07-20 01:56:02,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 88 states. [2020-07-20 01:56:02,072 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 587 transitions. [2020-07-20 01:56:02,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2020-07-20 01:56:02,075 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:02,076 INFO L422 BasicCegarLoop]: trace histogram [83, 83, 83, 82, 82, 82, 82, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:02,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:02,290 INFO L427 AbstractCegarLoop]: === Iteration 83 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:02,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:02,290 INFO L82 PathProgramCache]: Analyzing trace with hash -753050539, now seen corresponding path program 82 times [2020-07-20 01:56:02,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:02,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691488685] [2020-07-20 01:56:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:06,827 INFO L134 CoverageAnalysis]: Checked inductivity of 23575 backedges. 164 proven. 10127 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2020-07-20 01:56:06,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691488685] [2020-07-20 01:56:06,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120463563] [2020-07-20 01:56:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@178b2b48 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:06,966 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@178b2b48 issued 4 check-sat command(s) [2020-07-20 01:56:06,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:06,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 86 conjunts are in the unsatisfiable core [2020-07-20 01:56:06,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:06,993 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:07,278 INFO L134 CoverageAnalysis]: Checked inductivity of 23575 backedges. 164 proven. 10127 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2020-07-20 01:56:07,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:07,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 89 [2020-07-20 01:56:07,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102185334] [2020-07-20 01:56:07,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2020-07-20 01:56:07,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:07,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2020-07-20 01:56:07,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3580, Invalid=4252, Unknown=0, NotChecked=0, Total=7832 [2020-07-20 01:56:07,280 INFO L87 Difference]: Start difference. First operand 587 states and 587 transitions. Second operand 89 states. [2020-07-20 01:56:08,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:08,744 INFO L93 Difference]: Finished difference Result 597 states and 597 transitions. [2020-07-20 01:56:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-07-20 01:56:08,745 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 584 [2020-07-20 01:56:08,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:08,748 INFO L225 Difference]: With dead ends: 597 [2020-07-20 01:56:08,748 INFO L226 Difference]: Without dead ends: 595 [2020-07-20 01:56:08,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3586, Invalid=4424, Unknown=0, NotChecked=0, Total=8010 [2020-07-20 01:56:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-07-20 01:56:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 594. [2020-07-20 01:56:08,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-07-20 01:56:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 594 transitions. [2020-07-20 01:56:08,755 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 594 transitions. Word has length 584 [2020-07-20 01:56:08,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:08,756 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 594 transitions. [2020-07-20 01:56:08,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 89 states. [2020-07-20 01:56:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 594 transitions. [2020-07-20 01:56:08,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-07-20 01:56:08,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:08,759 INFO L422 BasicCegarLoop]: trace histogram [84, 84, 84, 83, 83, 83, 83, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:08,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:08,960 INFO L427 AbstractCegarLoop]: === Iteration 84 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:08,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:08,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1379320472, now seen corresponding path program 83 times [2020-07-20 01:56:08,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:08,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729081705] [2020-07-20 01:56:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 24153 backedges. 166 proven. 10375 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2020-07-20 01:56:13,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729081705] [2020-07-20 01:56:13,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013172313] [2020-07-20 01:56:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c42b447 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:13,792 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c42b447 issued 4 check-sat command(s) [2020-07-20 01:56:13,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:13,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 87 conjunts are in the unsatisfiable core [2020-07-20 01:56:13,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:13,820 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:14,079 INFO L134 CoverageAnalysis]: Checked inductivity of 24153 backedges. 166 proven. 10375 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2020-07-20 01:56:14,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:14,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 90 [2020-07-20 01:56:14,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583904094] [2020-07-20 01:56:14,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 90 states [2020-07-20 01:56:14,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:14,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2020-07-20 01:56:14,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3665, Invalid=4345, Unknown=0, NotChecked=0, Total=8010 [2020-07-20 01:56:14,082 INFO L87 Difference]: Start difference. First operand 594 states and 594 transitions. Second operand 90 states. [2020-07-20 01:56:15,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:15,553 INFO L93 Difference]: Finished difference Result 604 states and 604 transitions. [2020-07-20 01:56:15,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-07-20 01:56:15,554 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 591 [2020-07-20 01:56:15,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:15,557 INFO L225 Difference]: With dead ends: 604 [2020-07-20 01:56:15,557 INFO L226 Difference]: Without dead ends: 602 [2020-07-20 01:56:15,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3671, Invalid=4519, Unknown=0, NotChecked=0, Total=8190 [2020-07-20 01:56:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-20 01:56:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2020-07-20 01:56:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-07-20 01:56:15,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 601 transitions. [2020-07-20 01:56:15,567 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 601 transitions. Word has length 591 [2020-07-20 01:56:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:15,567 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 601 transitions. [2020-07-20 01:56:15,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 90 states. [2020-07-20 01:56:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 601 transitions. [2020-07-20 01:56:15,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-07-20 01:56:15,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:15,570 INFO L422 BasicCegarLoop]: trace histogram [85, 85, 85, 84, 84, 84, 84, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:15,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:15,771 INFO L427 AbstractCegarLoop]: === Iteration 85 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:15,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:15,772 INFO L82 PathProgramCache]: Analyzing trace with hash 719622389, now seen corresponding path program 84 times [2020-07-20 01:56:15,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:15,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443355787] [2020-07-20 01:56:15,773 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:20,649 INFO L134 CoverageAnalysis]: Checked inductivity of 24738 backedges. 168 proven. 10626 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2020-07-20 01:56:20,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443355787] [2020-07-20 01:56:20,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30102874] [2020-07-20 01:56:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@288bd139 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:20,790 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@288bd139 issued 4 check-sat command(s) [2020-07-20 01:56:20,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:20,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 88 conjunts are in the unsatisfiable core [2020-07-20 01:56:20,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:20,820 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 24738 backedges. 168 proven. 10626 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2020-07-20 01:56:21,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:21,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 91 [2020-07-20 01:56:21,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478517204] [2020-07-20 01:56:21,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2020-07-20 01:56:21,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:21,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2020-07-20 01:56:21,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3751, Invalid=4439, Unknown=0, NotChecked=0, Total=8190 [2020-07-20 01:56:21,100 INFO L87 Difference]: Start difference. First operand 601 states and 601 transitions. Second operand 91 states. [2020-07-20 01:56:22,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:22,540 INFO L93 Difference]: Finished difference Result 611 states and 611 transitions. [2020-07-20 01:56:22,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-07-20 01:56:22,541 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 598 [2020-07-20 01:56:22,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:22,543 INFO L225 Difference]: With dead ends: 611 [2020-07-20 01:56:22,543 INFO L226 Difference]: Without dead ends: 609 [2020-07-20 01:56:22,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3757, Invalid=4615, Unknown=0, NotChecked=0, Total=8372 [2020-07-20 01:56:22,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-20 01:56:22,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2020-07-20 01:56:22,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-07-20 01:56:22,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 608 transitions. [2020-07-20 01:56:22,553 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 608 transitions. Word has length 598 [2020-07-20 01:56:22,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:22,553 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 608 transitions. [2020-07-20 01:56:22,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 91 states. [2020-07-20 01:56:22,553 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 608 transitions. [2020-07-20 01:56:22,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-07-20 01:56:22,557 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:22,557 INFO L422 BasicCegarLoop]: trace histogram [86, 86, 86, 85, 85, 85, 85, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:22,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2020-07-20 01:56:22,758 INFO L427 AbstractCegarLoop]: === Iteration 86 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:22,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:22,759 INFO L82 PathProgramCache]: Analyzing trace with hash 33264840, now seen corresponding path program 85 times [2020-07-20 01:56:22,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:22,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352688778] [2020-07-20 01:56:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 170 proven. 10880 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2020-07-20 01:56:27,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352688778] [2020-07-20 01:56:27,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052037373] [2020-07-20 01:56:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@dae36b7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:27,857 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@dae36b7 issued 4 check-sat command(s) [2020-07-20 01:56:27,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:27,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 89 conjunts are in the unsatisfiable core [2020-07-20 01:56:27,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:27,883 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:28,171 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 170 proven. 10880 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2020-07-20 01:56:28,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:28,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 92 [2020-07-20 01:56:28,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110986174] [2020-07-20 01:56:28,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 92 states [2020-07-20 01:56:28,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:28,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2020-07-20 01:56:28,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3838, Invalid=4534, Unknown=0, NotChecked=0, Total=8372 [2020-07-20 01:56:28,174 INFO L87 Difference]: Start difference. First operand 608 states and 608 transitions. Second operand 92 states. [2020-07-20 01:56:29,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:29,524 INFO L93 Difference]: Finished difference Result 618 states and 618 transitions. [2020-07-20 01:56:29,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-07-20 01:56:29,525 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 605 [2020-07-20 01:56:29,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:29,528 INFO L225 Difference]: With dead ends: 618 [2020-07-20 01:56:29,528 INFO L226 Difference]: Without dead ends: 616 [2020-07-20 01:56:29,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 867 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3844, Invalid=4712, Unknown=0, NotChecked=0, Total=8556 [2020-07-20 01:56:29,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-07-20 01:56:29,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2020-07-20 01:56:29,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-07-20 01:56:29,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 615 transitions. [2020-07-20 01:56:29,536 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 615 transitions. Word has length 605 [2020-07-20 01:56:29,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:29,536 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 615 transitions. [2020-07-20 01:56:29,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 92 states. [2020-07-20 01:56:29,537 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 615 transitions. [2020-07-20 01:56:29,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-07-20 01:56:29,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:29,540 INFO L422 BasicCegarLoop]: trace histogram [87, 87, 87, 86, 86, 86, 86, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:29,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:29,741 INFO L427 AbstractCegarLoop]: === Iteration 87 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:29,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:29,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1792856683, now seen corresponding path program 86 times [2020-07-20 01:56:29,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:29,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631898982] [2020-07-20 01:56:29,743 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 25929 backedges. 172 proven. 11137 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2020-07-20 01:56:34,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631898982] [2020-07-20 01:56:34,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378465503] [2020-07-20 01:56:34,829 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f47eaa No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:34,977 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f47eaa issued 4 check-sat command(s) [2020-07-20 01:56:34,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:34,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 90 conjunts are in the unsatisfiable core [2020-07-20 01:56:34,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:35,003 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:35,300 INFO L134 CoverageAnalysis]: Checked inductivity of 25929 backedges. 172 proven. 11137 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2020-07-20 01:56:35,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:35,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 93 [2020-07-20 01:56:35,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531674775] [2020-07-20 01:56:35,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2020-07-20 01:56:35,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:35,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2020-07-20 01:56:35,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3926, Invalid=4630, Unknown=0, NotChecked=0, Total=8556 [2020-07-20 01:56:35,302 INFO L87 Difference]: Start difference. First operand 615 states and 615 transitions. Second operand 93 states. [2020-07-20 01:56:36,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:36,875 INFO L93 Difference]: Finished difference Result 625 states and 625 transitions. [2020-07-20 01:56:36,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2020-07-20 01:56:36,876 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 612 [2020-07-20 01:56:36,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:36,878 INFO L225 Difference]: With dead ends: 625 [2020-07-20 01:56:36,878 INFO L226 Difference]: Without dead ends: 623 [2020-07-20 01:56:36,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3932, Invalid=4810, Unknown=0, NotChecked=0, Total=8742 [2020-07-20 01:56:36,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-07-20 01:56:36,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 622. [2020-07-20 01:56:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-20 01:56:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 622 transitions. [2020-07-20 01:56:36,886 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 622 transitions. Word has length 612 [2020-07-20 01:56:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:36,886 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 622 transitions. [2020-07-20 01:56:36,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 93 states. [2020-07-20 01:56:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 622 transitions. [2020-07-20 01:56:36,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-07-20 01:56:36,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:36,890 INFO L422 BasicCegarLoop]: trace histogram [88, 88, 88, 87, 87, 87, 87, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:37,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-07-20 01:56:37,091 INFO L427 AbstractCegarLoop]: === Iteration 88 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:37,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:37,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1511097384, now seen corresponding path program 87 times [2020-07-20 01:56:37,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:37,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469632166] [2020-07-20 01:56:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:42,351 INFO L134 CoverageAnalysis]: Checked inductivity of 26535 backedges. 174 proven. 11397 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2020-07-20 01:56:42,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469632166] [2020-07-20 01:56:42,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004279185] [2020-07-20 01:56:42,351 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@316f3ba0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:42,499 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@316f3ba0 issued 4 check-sat command(s) [2020-07-20 01:56:42,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:42,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 91 conjunts are in the unsatisfiable core [2020-07-20 01:56:42,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:42,525 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 26535 backedges. 174 proven. 11397 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2020-07-20 01:56:42,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:42,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 94 [2020-07-20 01:56:42,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772754330] [2020-07-20 01:56:42,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 94 states [2020-07-20 01:56:42,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:42,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2020-07-20 01:56:42,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4015, Invalid=4727, Unknown=0, NotChecked=0, Total=8742 [2020-07-20 01:56:42,810 INFO L87 Difference]: Start difference. First operand 622 states and 622 transitions. Second operand 94 states. [2020-07-20 01:56:44,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:44,404 INFO L93 Difference]: Finished difference Result 632 states and 632 transitions. [2020-07-20 01:56:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2020-07-20 01:56:44,405 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 619 [2020-07-20 01:56:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:44,408 INFO L225 Difference]: With dead ends: 632 [2020-07-20 01:56:44,408 INFO L226 Difference]: Without dead ends: 630 [2020-07-20 01:56:44,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=4021, Invalid=4909, Unknown=0, NotChecked=0, Total=8930 [2020-07-20 01:56:44,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-07-20 01:56:44,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 629. [2020-07-20 01:56:44,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-07-20 01:56:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 629 transitions. [2020-07-20 01:56:44,416 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 629 transitions. Word has length 619 [2020-07-20 01:56:44,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:44,417 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 629 transitions. [2020-07-20 01:56:44,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 94 states. [2020-07-20 01:56:44,417 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 629 transitions. [2020-07-20 01:56:44,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-07-20 01:56:44,420 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:44,420 INFO L422 BasicCegarLoop]: trace histogram [89, 89, 89, 88, 88, 88, 88, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:44,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2020-07-20 01:56:44,622 INFO L427 AbstractCegarLoop]: === Iteration 89 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:44,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:44,622 INFO L82 PathProgramCache]: Analyzing trace with hash 415445557, now seen corresponding path program 88 times [2020-07-20 01:56:44,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:44,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737300710] [2020-07-20 01:56:44,623 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 27148 backedges. 176 proven. 11660 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2020-07-20 01:56:50,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737300710] [2020-07-20 01:56:50,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657727547] [2020-07-20 01:56:50,186 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c3afe56 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:50,335 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c3afe56 issued 4 check-sat command(s) [2020-07-20 01:56:50,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:50,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 92 conjunts are in the unsatisfiable core [2020-07-20 01:56:50,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:50,362 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:50,648 INFO L134 CoverageAnalysis]: Checked inductivity of 27148 backedges. 176 proven. 11660 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2020-07-20 01:56:50,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:50,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 95 [2020-07-20 01:56:50,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670873338] [2020-07-20 01:56:50,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2020-07-20 01:56:50,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:50,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2020-07-20 01:56:50,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4105, Invalid=4825, Unknown=0, NotChecked=0, Total=8930 [2020-07-20 01:56:50,650 INFO L87 Difference]: Start difference. First operand 629 states and 629 transitions. Second operand 95 states. [2020-07-20 01:56:52,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:56:52,304 INFO L93 Difference]: Finished difference Result 639 states and 639 transitions. [2020-07-20 01:56:52,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2020-07-20 01:56:52,305 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 626 [2020-07-20 01:56:52,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:56:52,307 INFO L225 Difference]: With dead ends: 639 [2020-07-20 01:56:52,307 INFO L226 Difference]: Without dead ends: 637 [2020-07-20 01:56:52,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4111, Invalid=5009, Unknown=0, NotChecked=0, Total=9120 [2020-07-20 01:56:52,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-07-20 01:56:52,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 636. [2020-07-20 01:56:52,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-07-20 01:56:52,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 636 transitions. [2020-07-20 01:56:52,319 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 636 transitions. Word has length 626 [2020-07-20 01:56:52,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:56:52,320 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 636 transitions. [2020-07-20 01:56:52,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 95 states. [2020-07-20 01:56:52,320 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 636 transitions. [2020-07-20 01:56:52,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2020-07-20 01:56:52,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:56:52,325 INFO L422 BasicCegarLoop]: trace histogram [90, 90, 90, 89, 89, 89, 89, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:56:52,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:52,540 INFO L427 AbstractCegarLoop]: === Iteration 90 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:56:52,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:56:52,541 INFO L82 PathProgramCache]: Analyzing trace with hash -203355256, now seen corresponding path program 89 times [2020-07-20 01:56:52,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:56:52,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290826186] [2020-07-20 01:56:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:56:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:56:58,146 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 178 proven. 11926 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2020-07-20 01:56:58,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290826186] [2020-07-20 01:56:58,147 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477437885] [2020-07-20 01:56:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6a3b5d22 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:56:58,301 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6a3b5d22 issued 4 check-sat command(s) [2020-07-20 01:56:58,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:56:58,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 93 conjunts are in the unsatisfiable core [2020-07-20 01:56:58,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:56:58,328 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:56:58,640 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 178 proven. 11926 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2020-07-20 01:56:58,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:56:58,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 96 [2020-07-20 01:56:58,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721566161] [2020-07-20 01:56:58,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 96 states [2020-07-20 01:56:58,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:56:58,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2020-07-20 01:56:58,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4196, Invalid=4924, Unknown=0, NotChecked=0, Total=9120 [2020-07-20 01:56:58,643 INFO L87 Difference]: Start difference. First operand 636 states and 636 transitions. Second operand 96 states. [2020-07-20 01:57:00,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:57:00,214 INFO L93 Difference]: Finished difference Result 646 states and 646 transitions. [2020-07-20 01:57:00,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2020-07-20 01:57:00,215 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 633 [2020-07-20 01:57:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:57:00,218 INFO L225 Difference]: With dead ends: 646 [2020-07-20 01:57:00,218 INFO L226 Difference]: Without dead ends: 644 [2020-07-20 01:57:00,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 907 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=4202, Invalid=5110, Unknown=0, NotChecked=0, Total=9312 [2020-07-20 01:57:00,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-20 01:57:00,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 643. [2020-07-20 01:57:00,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-07-20 01:57:00,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 643 transitions. [2020-07-20 01:57:00,229 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 643 transitions. Word has length 633 [2020-07-20 01:57:00,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:57:00,230 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 643 transitions. [2020-07-20 01:57:00,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 96 states. [2020-07-20 01:57:00,230 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 643 transitions. [2020-07-20 01:57:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-07-20 01:57:00,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:57:00,235 INFO L422 BasicCegarLoop]: trace histogram [91, 91, 91, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:57:00,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:00,449 INFO L427 AbstractCegarLoop]: === Iteration 91 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:57:00,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:57:00,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1529781973, now seen corresponding path program 90 times [2020-07-20 01:57:00,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:57:00,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083384691] [2020-07-20 01:57:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:57:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:06,165 INFO L134 CoverageAnalysis]: Checked inductivity of 28395 backedges. 180 proven. 12195 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2020-07-20 01:57:06,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083384691] [2020-07-20 01:57:06,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624042076] [2020-07-20 01:57:06,166 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@91420c0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:06,318 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@91420c0 issued 4 check-sat command(s) [2020-07-20 01:57:06,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:57:06,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 94 conjunts are in the unsatisfiable core [2020-07-20 01:57:06,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:57:06,349 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:57:06,669 INFO L134 CoverageAnalysis]: Checked inductivity of 28395 backedges. 180 proven. 12195 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2020-07-20 01:57:06,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:57:06,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 97 [2020-07-20 01:57:06,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888705822] [2020-07-20 01:57:06,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2020-07-20 01:57:06,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:57:06,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2020-07-20 01:57:06,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4288, Invalid=5024, Unknown=0, NotChecked=0, Total=9312 [2020-07-20 01:57:06,672 INFO L87 Difference]: Start difference. First operand 643 states and 643 transitions. Second operand 97 states. [2020-07-20 01:57:08,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:57:08,354 INFO L93 Difference]: Finished difference Result 653 states and 653 transitions. [2020-07-20 01:57:08,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-07-20 01:57:08,355 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 640 [2020-07-20 01:57:08,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:57:08,358 INFO L225 Difference]: With dead ends: 653 [2020-07-20 01:57:08,358 INFO L226 Difference]: Without dead ends: 651 [2020-07-20 01:57:08,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4294, Invalid=5212, Unknown=0, NotChecked=0, Total=9506 [2020-07-20 01:57:08,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-07-20 01:57:08,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 650. [2020-07-20 01:57:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-07-20 01:57:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 650 transitions. [2020-07-20 01:57:08,367 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 650 transitions. Word has length 640 [2020-07-20 01:57:08,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:57:08,368 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 650 transitions. [2020-07-20 01:57:08,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 97 states. [2020-07-20 01:57:08,368 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 650 transitions. [2020-07-20 01:57:08,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2020-07-20 01:57:08,371 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:57:08,372 INFO L422 BasicCegarLoop]: trace histogram [92, 92, 92, 91, 91, 91, 91, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:57:08,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:08,572 INFO L427 AbstractCegarLoop]: === Iteration 92 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:57:08,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:57:08,573 INFO L82 PathProgramCache]: Analyzing trace with hash 515910376, now seen corresponding path program 91 times [2020-07-20 01:57:08,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:57:08,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952683921] [2020-07-20 01:57:08,574 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:57:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 29029 backedges. 182 proven. 12467 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2020-07-20 01:57:14,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952683921] [2020-07-20 01:57:14,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134701406] [2020-07-20 01:57:14,454 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f3fedfb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:14,608 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f3fedfb issued 4 check-sat command(s) [2020-07-20 01:57:14,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:57:14,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 95 conjunts are in the unsatisfiable core [2020-07-20 01:57:14,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:57:14,635 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:57:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 29029 backedges. 182 proven. 12467 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2020-07-20 01:57:14,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:57:14,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 98 [2020-07-20 01:57:14,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309972873] [2020-07-20 01:57:14,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 98 states [2020-07-20 01:57:14,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:57:14,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2020-07-20 01:57:14,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4381, Invalid=5125, Unknown=0, NotChecked=0, Total=9506 [2020-07-20 01:57:14,941 INFO L87 Difference]: Start difference. First operand 650 states and 650 transitions. Second operand 98 states. [2020-07-20 01:57:16,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:57:16,487 INFO L93 Difference]: Finished difference Result 660 states and 660 transitions. [2020-07-20 01:57:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-07-20 01:57:16,488 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 647 [2020-07-20 01:57:16,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:57:16,492 INFO L225 Difference]: With dead ends: 660 [2020-07-20 01:57:16,492 INFO L226 Difference]: Without dead ends: 658 [2020-07-20 01:57:16,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 830 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4387, Invalid=5315, Unknown=0, NotChecked=0, Total=9702 [2020-07-20 01:57:16,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-07-20 01:57:16,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 657. [2020-07-20 01:57:16,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-07-20 01:57:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 657 transitions. [2020-07-20 01:57:16,501 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 657 transitions. Word has length 647 [2020-07-20 01:57:16,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:57:16,502 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 657 transitions. [2020-07-20 01:57:16,502 INFO L480 AbstractCegarLoop]: Interpolant automaton has 98 states. [2020-07-20 01:57:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 657 transitions. [2020-07-20 01:57:16,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-07-20 01:57:16,505 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:57:16,505 INFO L422 BasicCegarLoop]: trace histogram [93, 93, 93, 92, 92, 92, 92, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:57:16,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,92 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:16,706 INFO L427 AbstractCegarLoop]: === Iteration 93 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:57:16,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:57:16,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1078948725, now seen corresponding path program 92 times [2020-07-20 01:57:16,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:57:16,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186579] [2020-07-20 01:57:16,708 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:57:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 29670 backedges. 184 proven. 12742 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2020-07-20 01:57:22,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186579] [2020-07-20 01:57:22,770 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533156047] [2020-07-20 01:57:22,770 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ecfa764 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:22,932 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ecfa764 issued 4 check-sat command(s) [2020-07-20 01:57:22,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:57:22,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 96 conjunts are in the unsatisfiable core [2020-07-20 01:57:22,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:57:22,960 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:57:23,295 INFO L134 CoverageAnalysis]: Checked inductivity of 29670 backedges. 184 proven. 12742 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2020-07-20 01:57:23,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:57:23,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 99 [2020-07-20 01:57:23,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430587052] [2020-07-20 01:57:23,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2020-07-20 01:57:23,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:57:23,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2020-07-20 01:57:23,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4475, Invalid=5227, Unknown=0, NotChecked=0, Total=9702 [2020-07-20 01:57:23,298 INFO L87 Difference]: Start difference. First operand 657 states and 657 transitions. Second operand 99 states. [2020-07-20 01:57:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:57:25,251 INFO L93 Difference]: Finished difference Result 667 states and 667 transitions. [2020-07-20 01:57:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2020-07-20 01:57:25,252 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 654 [2020-07-20 01:57:25,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:57:25,255 INFO L225 Difference]: With dead ends: 667 [2020-07-20 01:57:25,255 INFO L226 Difference]: Without dead ends: 665 [2020-07-20 01:57:25,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=4481, Invalid=5419, Unknown=0, NotChecked=0, Total=9900 [2020-07-20 01:57:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-07-20 01:57:25,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2020-07-20 01:57:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2020-07-20 01:57:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 664 transitions. [2020-07-20 01:57:25,263 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 664 transitions. Word has length 654 [2020-07-20 01:57:25,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:57:25,264 INFO L479 AbstractCegarLoop]: Abstraction has 664 states and 664 transitions. [2020-07-20 01:57:25,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 99 states. [2020-07-20 01:57:25,264 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 664 transitions. [2020-07-20 01:57:25,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-07-20 01:57:25,267 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:57:25,268 INFO L422 BasicCegarLoop]: trace histogram [94, 94, 94, 93, 93, 93, 93, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:57:25,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:25,469 INFO L427 AbstractCegarLoop]: === Iteration 94 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:57:25,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:57:25,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1685790136, now seen corresponding path program 93 times [2020-07-20 01:57:25,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:57:25,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225822212] [2020-07-20 01:57:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:57:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:31,688 INFO L134 CoverageAnalysis]: Checked inductivity of 30318 backedges. 186 proven. 13020 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2020-07-20 01:57:31,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225822212] [2020-07-20 01:57:31,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189685684] [2020-07-20 01:57:31,688 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@221bb7e5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:31,839 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@221bb7e5 issued 4 check-sat command(s) [2020-07-20 01:57:31,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:57:31,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 97 conjunts are in the unsatisfiable core [2020-07-20 01:57:31,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:57:31,869 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:57:32,186 INFO L134 CoverageAnalysis]: Checked inductivity of 30318 backedges. 186 proven. 13020 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2020-07-20 01:57:32,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:57:32,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 100 [2020-07-20 01:57:32,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591029164] [2020-07-20 01:57:32,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 100 states [2020-07-20 01:57:32,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:57:32,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2020-07-20 01:57:32,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4570, Invalid=5330, Unknown=0, NotChecked=0, Total=9900 [2020-07-20 01:57:32,188 INFO L87 Difference]: Start difference. First operand 664 states and 664 transitions. Second operand 100 states. [2020-07-20 01:57:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:57:34,418 INFO L93 Difference]: Finished difference Result 674 states and 674 transitions. [2020-07-20 01:57:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2020-07-20 01:57:34,419 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 661 [2020-07-20 01:57:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:57:34,422 INFO L225 Difference]: With dead ends: 674 [2020-07-20 01:57:34,422 INFO L226 Difference]: Without dead ends: 672 [2020-07-20 01:57:34,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=4576, Invalid=5524, Unknown=0, NotChecked=0, Total=10100 [2020-07-20 01:57:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-07-20 01:57:34,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 671. [2020-07-20 01:57:34,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-07-20 01:57:34,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 671 transitions. [2020-07-20 01:57:34,430 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 671 transitions. Word has length 661 [2020-07-20 01:57:34,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:57:34,431 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 671 transitions. [2020-07-20 01:57:34,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 100 states. [2020-07-20 01:57:34,431 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 671 transitions. [2020-07-20 01:57:34,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-07-20 01:57:34,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:57:34,436 INFO L422 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:57:34,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,94 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:34,639 INFO L427 AbstractCegarLoop]: === Iteration 95 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:57:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:57:34,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1970294763, now seen corresponding path program 94 times [2020-07-20 01:57:34,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:57:34,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436589726] [2020-07-20 01:57:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:57:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:40,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 188 proven. 13301 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2020-07-20 01:57:41,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436589726] [2020-07-20 01:57:41,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681864298] [2020-07-20 01:57:41,101 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a5e405a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:41,261 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a5e405a issued 4 check-sat command(s) [2020-07-20 01:57:41,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:57:41,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 98 conjunts are in the unsatisfiable core [2020-07-20 01:57:41,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:57:41,290 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:57:41,641 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 188 proven. 13301 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2020-07-20 01:57:41,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:57:41,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99] total 101 [2020-07-20 01:57:41,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993768203] [2020-07-20 01:57:41,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2020-07-20 01:57:41,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:57:41,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2020-07-20 01:57:41,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4666, Invalid=5434, Unknown=0, NotChecked=0, Total=10100 [2020-07-20 01:57:41,643 INFO L87 Difference]: Start difference. First operand 671 states and 671 transitions. Second operand 101 states. [2020-07-20 01:57:43,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:57:43,997 INFO L93 Difference]: Finished difference Result 681 states and 681 transitions. [2020-07-20 01:57:43,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2020-07-20 01:57:43,998 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 668 [2020-07-20 01:57:43,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:57:44,000 INFO L225 Difference]: With dead ends: 681 [2020-07-20 01:57:44,000 INFO L226 Difference]: Without dead ends: 679 [2020-07-20 01:57:44,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 857 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=4672, Invalid=5630, Unknown=0, NotChecked=0, Total=10302 [2020-07-20 01:57:44,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-07-20 01:57:44,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 678. [2020-07-20 01:57:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-07-20 01:57:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 678 transitions. [2020-07-20 01:57:44,009 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 678 transitions. Word has length 668 [2020-07-20 01:57:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:57:44,009 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 678 transitions. [2020-07-20 01:57:44,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 101 states. [2020-07-20 01:57:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 678 transitions. [2020-07-20 01:57:44,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2020-07-20 01:57:44,012 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:57:44,013 INFO L422 BasicCegarLoop]: trace histogram [96, 96, 96, 95, 95, 95, 95, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:57:44,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:44,213 INFO L427 AbstractCegarLoop]: === Iteration 96 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:57:44,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:57:44,214 INFO L82 PathProgramCache]: Analyzing trace with hash -58379864, now seen corresponding path program 95 times [2020-07-20 01:57:44,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:57:44,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164671615] [2020-07-20 01:57:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:57:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:57:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 31635 backedges. 190 proven. 13585 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2020-07-20 01:57:50,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164671615] [2020-07-20 01:57:50,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674347657] [2020-07-20 01:57:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bc76812 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:50,992 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bc76812 issued 4 check-sat command(s) [2020-07-20 01:57:50,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:57:50,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 99 conjunts are in the unsatisfiable core [2020-07-20 01:57:51,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:57:51,046 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:57:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 31635 backedges. 190 proven. 13585 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2020-07-20 01:57:51,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:57:51,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 102 [2020-07-20 01:57:51,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502078723] [2020-07-20 01:57:51,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 102 states [2020-07-20 01:57:51,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:57:51,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2020-07-20 01:57:51,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4763, Invalid=5539, Unknown=0, NotChecked=0, Total=10302 [2020-07-20 01:57:51,376 INFO L87 Difference]: Start difference. First operand 678 states and 678 transitions. Second operand 102 states. [2020-07-20 01:57:53,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:57:53,916 INFO L93 Difference]: Finished difference Result 688 states and 688 transitions. [2020-07-20 01:57:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-07-20 01:57:53,918 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 675 [2020-07-20 01:57:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:57:53,920 INFO L225 Difference]: With dead ends: 688 [2020-07-20 01:57:53,920 INFO L226 Difference]: Without dead ends: 686 [2020-07-20 01:57:53,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=4769, Invalid=5737, Unknown=0, NotChecked=0, Total=10506 [2020-07-20 01:57:53,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-07-20 01:57:53,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 685. [2020-07-20 01:57:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-07-20 01:57:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 685 transitions. [2020-07-20 01:57:53,928 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 685 transitions. Word has length 675 [2020-07-20 01:57:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:57:53,930 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 685 transitions. [2020-07-20 01:57:53,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 102 states. [2020-07-20 01:57:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 685 transitions. [2020-07-20 01:57:53,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2020-07-20 01:57:53,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:57:53,936 INFO L422 BasicCegarLoop]: trace histogram [97, 97, 97, 96, 96, 96, 96, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:57:54,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:57:54,142 INFO L427 AbstractCegarLoop]: === Iteration 97 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:57:54,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:57:54,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2061063349, now seen corresponding path program 96 times [2020-07-20 01:57:54,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:57:54,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679323796] [2020-07-20 01:57:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:57:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 32304 backedges. 192 proven. 13872 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2020-07-20 01:58:00,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679323796] [2020-07-20 01:58:00,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434865430] [2020-07-20 01:58:00,942 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@41793a93 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:01,101 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@41793a93 issued 4 check-sat command(s) [2020-07-20 01:58:01,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:58:01,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 100 conjunts are in the unsatisfiable core [2020-07-20 01:58:01,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:58:01,139 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:58:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 32304 backedges. 192 proven. 13872 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2020-07-20 01:58:01,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:58:01,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101] total 103 [2020-07-20 01:58:01,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917344102] [2020-07-20 01:58:01,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2020-07-20 01:58:01,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:58:01,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2020-07-20 01:58:01,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4861, Invalid=5645, Unknown=0, NotChecked=0, Total=10506 [2020-07-20 01:58:01,500 INFO L87 Difference]: Start difference. First operand 685 states and 685 transitions. Second operand 103 states. [2020-07-20 01:58:04,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:58:04,054 INFO L93 Difference]: Finished difference Result 695 states and 695 transitions. [2020-07-20 01:58:04,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2020-07-20 01:58:04,055 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 682 [2020-07-20 01:58:04,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:58:04,058 INFO L225 Difference]: With dead ends: 695 [2020-07-20 01:58:04,058 INFO L226 Difference]: Without dead ends: 693 [2020-07-20 01:58:04,059 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 875 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=4867, Invalid=5845, Unknown=0, NotChecked=0, Total=10712 [2020-07-20 01:58:04,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-07-20 01:58:04,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2020-07-20 01:58:04,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-07-20 01:58:04,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 692 transitions. [2020-07-20 01:58:04,069 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 692 transitions. Word has length 682 [2020-07-20 01:58:04,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:58:04,070 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 692 transitions. [2020-07-20 01:58:04,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 103 states. [2020-07-20 01:58:04,070 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 692 transitions. [2020-07-20 01:58:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-07-20 01:58:04,075 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:58:04,075 INFO L422 BasicCegarLoop]: trace histogram [98, 98, 98, 97, 97, 97, 97, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:58:04,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2020-07-20 01:58:04,289 INFO L427 AbstractCegarLoop]: === Iteration 98 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:58:04,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:58:04,289 INFO L82 PathProgramCache]: Analyzing trace with hash 93788424, now seen corresponding path program 97 times [2020-07-20 01:58:04,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:58:04,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530513505] [2020-07-20 01:58:04,289 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:58:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:11,304 INFO L134 CoverageAnalysis]: Checked inductivity of 32980 backedges. 194 proven. 14162 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2020-07-20 01:58:11,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530513505] [2020-07-20 01:58:11,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413600957] [2020-07-20 01:58:11,304 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@67842846 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:11,467 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@67842846 issued 4 check-sat command(s) [2020-07-20 01:58:11,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:58:11,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 101 conjunts are in the unsatisfiable core [2020-07-20 01:58:11,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:58:11,496 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:58:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 32980 backedges. 194 proven. 14162 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2020-07-20 01:58:11,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:58:11,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 104 [2020-07-20 01:58:11,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481788648] [2020-07-20 01:58:11,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 104 states [2020-07-20 01:58:11,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:58:11,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2020-07-20 01:58:11,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4960, Invalid=5752, Unknown=0, NotChecked=0, Total=10712 [2020-07-20 01:58:11,855 INFO L87 Difference]: Start difference. First operand 692 states and 692 transitions. Second operand 104 states. [2020-07-20 01:58:14,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:58:14,522 INFO L93 Difference]: Finished difference Result 702 states and 702 transitions. [2020-07-20 01:58:14,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2020-07-20 01:58:14,522 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 689 [2020-07-20 01:58:14,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:58:14,525 INFO L225 Difference]: With dead ends: 702 [2020-07-20 01:58:14,525 INFO L226 Difference]: Without dead ends: 700 [2020-07-20 01:58:14,525 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 884 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=4966, Invalid=5954, Unknown=0, NotChecked=0, Total=10920 [2020-07-20 01:58:14,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-20 01:58:14,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 699. [2020-07-20 01:58:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-20 01:58:14,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 699 transitions. [2020-07-20 01:58:14,534 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 699 transitions. Word has length 689 [2020-07-20 01:58:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:58:14,535 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 699 transitions. [2020-07-20 01:58:14,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 104 states. [2020-07-20 01:58:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 699 transitions. [2020-07-20 01:58:14,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2020-07-20 01:58:14,538 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:58:14,539 INFO L422 BasicCegarLoop]: trace histogram [99, 99, 99, 98, 98, 98, 98, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:58:14,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:14,740 INFO L427 AbstractCegarLoop]: === Iteration 99 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:58:14,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:58:14,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1888903509, now seen corresponding path program 98 times [2020-07-20 01:58:14,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:58:14,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511984411] [2020-07-20 01:58:14,741 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:58:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:21,958 INFO L134 CoverageAnalysis]: Checked inductivity of 33663 backedges. 196 proven. 14455 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2020-07-20 01:58:21,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511984411] [2020-07-20 01:58:21,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809614444] [2020-07-20 01:58:21,958 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d8cdf72 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:22,125 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d8cdf72 issued 4 check-sat command(s) [2020-07-20 01:58:22,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:58:22,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 102 conjunts are in the unsatisfiable core [2020-07-20 01:58:22,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:58:22,154 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:58:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 33663 backedges. 196 proven. 14455 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2020-07-20 01:58:22,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:58:22,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103] total 105 [2020-07-20 01:58:22,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930284698] [2020-07-20 01:58:22,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2020-07-20 01:58:22,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:58:22,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2020-07-20 01:58:22,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5060, Invalid=5860, Unknown=0, NotChecked=0, Total=10920 [2020-07-20 01:58:22,535 INFO L87 Difference]: Start difference. First operand 699 states and 699 transitions. Second operand 105 states. [2020-07-20 01:58:24,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:58:24,988 INFO L93 Difference]: Finished difference Result 709 states and 709 transitions. [2020-07-20 01:58:24,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2020-07-20 01:58:24,989 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 696 [2020-07-20 01:58:24,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:58:24,992 INFO L225 Difference]: With dead ends: 709 [2020-07-20 01:58:24,992 INFO L226 Difference]: Without dead ends: 707 [2020-07-20 01:58:24,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 997 GetRequests, 893 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=5066, Invalid=6064, Unknown=0, NotChecked=0, Total=11130 [2020-07-20 01:58:24,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-07-20 01:58:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 706. [2020-07-20 01:58:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-07-20 01:58:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 706 transitions. [2020-07-20 01:58:25,004 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 706 transitions. Word has length 696 [2020-07-20 01:58:25,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:58:25,004 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 706 transitions. [2020-07-20 01:58:25,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 105 states. [2020-07-20 01:58:25,004 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 706 transitions. [2020-07-20 01:58:25,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-07-20 01:58:25,008 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:58:25,008 INFO L422 BasicCegarLoop]: trace histogram [100, 100, 100, 99, 99, 99, 99, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:58:25,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:25,209 INFO L427 AbstractCegarLoop]: === Iteration 100 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:58:25,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:58:25,210 INFO L82 PathProgramCache]: Analyzing trace with hash 202414184, now seen corresponding path program 99 times [2020-07-20 01:58:25,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:58:25,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24561528] [2020-07-20 01:58:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:58:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 34353 backedges. 198 proven. 14751 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2020-07-20 01:58:32,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24561528] [2020-07-20 01:58:32,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463603519] [2020-07-20 01:58:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e81a493 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:32,849 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e81a493 issued 4 check-sat command(s) [2020-07-20 01:58:32,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:58:32,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 103 conjunts are in the unsatisfiable core [2020-07-20 01:58:32,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:58:32,878 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:58:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 34353 backedges. 198 proven. 14751 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2020-07-20 01:58:33,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:58:33,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104] total 106 [2020-07-20 01:58:33,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708156470] [2020-07-20 01:58:33,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 106 states [2020-07-20 01:58:33,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:58:33,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2020-07-20 01:58:33,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5161, Invalid=5969, Unknown=0, NotChecked=0, Total=11130 [2020-07-20 01:58:33,264 INFO L87 Difference]: Start difference. First operand 706 states and 706 transitions. Second operand 106 states. [2020-07-20 01:58:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:58:35,719 INFO L93 Difference]: Finished difference Result 716 states and 716 transitions. [2020-07-20 01:58:35,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2020-07-20 01:58:35,720 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 703 [2020-07-20 01:58:35,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:58:35,722 INFO L225 Difference]: With dead ends: 716 [2020-07-20 01:58:35,723 INFO L226 Difference]: Without dead ends: 714 [2020-07-20 01:58:35,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=5167, Invalid=6175, Unknown=0, NotChecked=0, Total=11342 [2020-07-20 01:58:35,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-07-20 01:58:35,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2020-07-20 01:58:35,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-07-20 01:58:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 713 transitions. [2020-07-20 01:58:35,734 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 713 transitions. Word has length 703 [2020-07-20 01:58:35,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:58:35,735 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 713 transitions. [2020-07-20 01:58:35,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 106 states. [2020-07-20 01:58:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 713 transitions. [2020-07-20 01:58:35,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-07-20 01:58:35,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:58:35,741 INFO L422 BasicCegarLoop]: trace histogram [101, 101, 101, 100, 100, 100, 100, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:58:35,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2020-07-20 01:58:35,956 INFO L427 AbstractCegarLoop]: === Iteration 101 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:58:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:58:35,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1984899595, now seen corresponding path program 100 times [2020-07-20 01:58:35,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:58:35,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817692908] [2020-07-20 01:58:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:58:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 35050 backedges. 200 proven. 15050 refuted. 0 times theorem prover too weak. 19800 trivial. 0 not checked. [2020-07-20 01:58:43,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817692908] [2020-07-20 01:58:43,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890229760] [2020-07-20 01:58:43,598 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3fcbc53b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:43,765 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3fcbc53b issued 4 check-sat command(s) [2020-07-20 01:58:43,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:58:43,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 104 conjunts are in the unsatisfiable core [2020-07-20 01:58:43,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:58:43,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:58:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 35050 backedges. 200 proven. 15050 refuted. 0 times theorem prover too weak. 19800 trivial. 0 not checked. [2020-07-20 01:58:44,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:58:44,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105] total 107 [2020-07-20 01:58:44,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651491895] [2020-07-20 01:58:44,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2020-07-20 01:58:44,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:58:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2020-07-20 01:58:44,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5263, Invalid=6079, Unknown=0, NotChecked=0, Total=11342 [2020-07-20 01:58:44,158 INFO L87 Difference]: Start difference. First operand 713 states and 713 transitions. Second operand 107 states. [2020-07-20 01:58:47,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:58:47,222 INFO L93 Difference]: Finished difference Result 723 states and 723 transitions. [2020-07-20 01:58:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2020-07-20 01:58:47,223 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 710 [2020-07-20 01:58:47,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:58:47,225 INFO L225 Difference]: With dead ends: 723 [2020-07-20 01:58:47,225 INFO L226 Difference]: Without dead ends: 721 [2020-07-20 01:58:47,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 911 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=5269, Invalid=6287, Unknown=0, NotChecked=0, Total=11556 [2020-07-20 01:58:47,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-07-20 01:58:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 720. [2020-07-20 01:58:47,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-07-20 01:58:47,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 720 transitions. [2020-07-20 01:58:47,235 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 720 transitions. Word has length 710 [2020-07-20 01:58:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:58:47,236 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 720 transitions. [2020-07-20 01:58:47,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 107 states. [2020-07-20 01:58:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 720 transitions. [2020-07-20 01:58:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-07-20 01:58:47,241 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:58:47,241 INFO L422 BasicCegarLoop]: trace histogram [102, 102, 102, 101, 101, 101, 101, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:58:47,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-07-20 01:58:47,442 INFO L427 AbstractCegarLoop]: === Iteration 102 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:58:47,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:58:47,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1455927240, now seen corresponding path program 101 times [2020-07-20 01:58:47,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:58:47,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149706167] [2020-07-20 01:58:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:58:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:58:55,245 INFO L134 CoverageAnalysis]: Checked inductivity of 35754 backedges. 202 proven. 15352 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2020-07-20 01:58:55,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149706167] [2020-07-20 01:58:55,245 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521694486] [2020-07-20 01:58:55,246 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@397896de No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:58:55,419 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@397896de issued 4 check-sat command(s) [2020-07-20 01:58:55,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:58:55,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 105 conjunts are in the unsatisfiable core [2020-07-20 01:58:55,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:58:55,463 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:58:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 35754 backedges. 202 proven. 15352 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2020-07-20 01:58:55,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:58:55,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106] total 108 [2020-07-20 01:58:55,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540795432] [2020-07-20 01:58:55,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 108 states [2020-07-20 01:58:55,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:58:55,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2020-07-20 01:58:55,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5366, Invalid=6190, Unknown=0, NotChecked=0, Total=11556 [2020-07-20 01:58:55,858 INFO L87 Difference]: Start difference. First operand 720 states and 720 transitions. Second operand 108 states. [2020-07-20 01:58:58,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:58:58,523 INFO L93 Difference]: Finished difference Result 730 states and 730 transitions. [2020-07-20 01:58:58,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2020-07-20 01:58:58,525 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 717 [2020-07-20 01:58:58,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:58:58,527 INFO L225 Difference]: With dead ends: 730 [2020-07-20 01:58:58,527 INFO L226 Difference]: Without dead ends: 728 [2020-07-20 01:58:58,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 920 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=5372, Invalid=6400, Unknown=0, NotChecked=0, Total=11772 [2020-07-20 01:58:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-07-20 01:58:58,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 727. [2020-07-20 01:58:58,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-07-20 01:58:58,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 727 transitions. [2020-07-20 01:58:58,539 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 727 transitions. Word has length 717 [2020-07-20 01:58:58,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:58:58,539 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 727 transitions. [2020-07-20 01:58:58,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 108 states. [2020-07-20 01:58:58,539 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 727 transitions. [2020-07-20 01:58:58,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2020-07-20 01:58:58,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:58:58,545 INFO L422 BasicCegarLoop]: trace histogram [103, 103, 103, 102, 102, 102, 102, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:58:58,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2020-07-20 01:58:58,746 INFO L427 AbstractCegarLoop]: === Iteration 103 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:58:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:58:58,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1116910229, now seen corresponding path program 102 times [2020-07-20 01:58:58,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:58:58,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164097344] [2020-07-20 01:58:58,747 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:58:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 36465 backedges. 204 proven. 15657 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2020-07-20 01:59:06,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164097344] [2020-07-20 01:59:06,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360081980] [2020-07-20 01:59:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c44e20e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:59:07,046 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c44e20e issued 4 check-sat command(s) [2020-07-20 01:59:07,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:59:07,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 106 conjunts are in the unsatisfiable core [2020-07-20 01:59:07,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:59:07,074 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:59:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 36465 backedges. 204 proven. 15657 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2020-07-20 01:59:07,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:59:07,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107] total 109 [2020-07-20 01:59:07,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016874704] [2020-07-20 01:59:07,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2020-07-20 01:59:07,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:59:07,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2020-07-20 01:59:07,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5470, Invalid=6302, Unknown=0, NotChecked=0, Total=11772 [2020-07-20 01:59:07,465 INFO L87 Difference]: Start difference. First operand 727 states and 727 transitions. Second operand 109 states. [2020-07-20 01:59:10,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:59:10,405 INFO L93 Difference]: Finished difference Result 737 states and 737 transitions. [2020-07-20 01:59:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2020-07-20 01:59:10,406 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 724 [2020-07-20 01:59:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:59:10,408 INFO L225 Difference]: With dead ends: 737 [2020-07-20 01:59:10,408 INFO L226 Difference]: Without dead ends: 735 [2020-07-20 01:59:10,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=5476, Invalid=6514, Unknown=0, NotChecked=0, Total=11990 [2020-07-20 01:59:10,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-20 01:59:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 734. [2020-07-20 01:59:10,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-07-20 01:59:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 734 transitions. [2020-07-20 01:59:10,422 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 734 transitions. Word has length 724 [2020-07-20 01:59:10,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:59:10,422 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 734 transitions. [2020-07-20 01:59:10,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 109 states. [2020-07-20 01:59:10,423 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 734 transitions. [2020-07-20 01:59:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-07-20 01:59:10,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:59:10,428 INFO L422 BasicCegarLoop]: trace histogram [104, 104, 104, 103, 103, 103, 103, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:59:10,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-07-20 01:59:10,642 INFO L427 AbstractCegarLoop]: === Iteration 104 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:59:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:59:10,642 INFO L82 PathProgramCache]: Analyzing trace with hash 2115133224, now seen corresponding path program 103 times [2020-07-20 01:59:10,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:59:10,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520877129] [2020-07-20 01:59:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:59:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:18,931 INFO L134 CoverageAnalysis]: Checked inductivity of 37183 backedges. 206 proven. 15965 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2020-07-20 01:59:18,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520877129] [2020-07-20 01:59:18,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737068575] [2020-07-20 01:59:18,931 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7d66ba4d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:59:19,102 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7d66ba4d issued 4 check-sat command(s) [2020-07-20 01:59:19,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:59:19,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 107 conjunts are in the unsatisfiable core [2020-07-20 01:59:19,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:59:19,142 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:59:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 37183 backedges. 206 proven. 15965 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2020-07-20 01:59:19,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:59:19,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108] total 110 [2020-07-20 01:59:19,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504781368] [2020-07-20 01:59:19,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 110 states [2020-07-20 01:59:19,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:59:19,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2020-07-20 01:59:19,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5575, Invalid=6415, Unknown=0, NotChecked=0, Total=11990 [2020-07-20 01:59:19,533 INFO L87 Difference]: Start difference. First operand 734 states and 734 transitions. Second operand 110 states. [2020-07-20 01:59:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:59:22,381 INFO L93 Difference]: Finished difference Result 744 states and 744 transitions. [2020-07-20 01:59:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2020-07-20 01:59:22,382 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 731 [2020-07-20 01:59:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:59:22,384 INFO L225 Difference]: With dead ends: 744 [2020-07-20 01:59:22,384 INFO L226 Difference]: Without dead ends: 742 [2020-07-20 01:59:22,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 938 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=5581, Invalid=6629, Unknown=0, NotChecked=0, Total=12210 [2020-07-20 01:59:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-07-20 01:59:22,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 741. [2020-07-20 01:59:22,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-07-20 01:59:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 741 transitions. [2020-07-20 01:59:22,398 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 741 transitions. Word has length 731 [2020-07-20 01:59:22,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:59:22,398 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 741 transitions. [2020-07-20 01:59:22,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 110 states. [2020-07-20 01:59:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 741 transitions. [2020-07-20 01:59:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2020-07-20 01:59:22,403 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:59:22,403 INFO L422 BasicCegarLoop]: trace histogram [105, 105, 105, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:59:22,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-07-20 01:59:22,613 INFO L427 AbstractCegarLoop]: === Iteration 105 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:59:22,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:59:22,614 INFO L82 PathProgramCache]: Analyzing trace with hash 371586869, now seen corresponding path program 104 times [2020-07-20 01:59:22,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:59:22,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374376249] [2020-07-20 01:59:22,615 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:59:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 37908 backedges. 208 proven. 16276 refuted. 0 times theorem prover too weak. 21424 trivial. 0 not checked. [2020-07-20 01:59:31,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374376249] [2020-07-20 01:59:31,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980498052] [2020-07-20 01:59:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2df9ef92 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:59:31,388 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2df9ef92 issued 4 check-sat command(s) [2020-07-20 01:59:31,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:59:31,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 108 conjunts are in the unsatisfiable core [2020-07-20 01:59:31,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:59:31,424 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:59:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 37908 backedges. 208 proven. 16276 refuted. 0 times theorem prover too weak. 21424 trivial. 0 not checked. [2020-07-20 01:59:31,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:59:31,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109] total 111 [2020-07-20 01:59:31,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050166488] [2020-07-20 01:59:31,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2020-07-20 01:59:31,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:59:31,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2020-07-20 01:59:31,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5681, Invalid=6529, Unknown=0, NotChecked=0, Total=12210 [2020-07-20 01:59:31,818 INFO L87 Difference]: Start difference. First operand 741 states and 741 transitions. Second operand 111 states. [2020-07-20 01:59:34,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:59:34,712 INFO L93 Difference]: Finished difference Result 751 states and 751 transitions. [2020-07-20 01:59:34,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2020-07-20 01:59:34,714 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 738 [2020-07-20 01:59:34,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:59:34,715 INFO L225 Difference]: With dead ends: 751 [2020-07-20 01:59:34,716 INFO L226 Difference]: Without dead ends: 749 [2020-07-20 01:59:34,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=5687, Invalid=6745, Unknown=0, NotChecked=0, Total=12432 [2020-07-20 01:59:34,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-07-20 01:59:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 748. [2020-07-20 01:59:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-07-20 01:59:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 748 transitions. [2020-07-20 01:59:34,727 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 748 transitions. Word has length 738 [2020-07-20 01:59:34,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:59:34,728 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 748 transitions. [2020-07-20 01:59:34,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 111 states. [2020-07-20 01:59:34,728 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 748 transitions. [2020-07-20 01:59:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-07-20 01:59:34,733 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:59:34,734 INFO L422 BasicCegarLoop]: trace histogram [106, 106, 106, 105, 105, 105, 105, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:59:34,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2020-07-20 01:59:34,947 INFO L427 AbstractCegarLoop]: === Iteration 106 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:59:34,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:59:34,947 INFO L82 PathProgramCache]: Analyzing trace with hash -876173688, now seen corresponding path program 105 times [2020-07-20 01:59:34,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:59:34,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369741871] [2020-07-20 01:59:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:59:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 38640 backedges. 210 proven. 16590 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2020-07-20 01:59:43,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369741871] [2020-07-20 01:59:43,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553358155] [2020-07-20 01:59:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@385a827b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:59:43,919 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@385a827b issued 4 check-sat command(s) [2020-07-20 01:59:43,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:59:43,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 109 conjunts are in the unsatisfiable core [2020-07-20 01:59:43,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:59:43,948 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:59:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 38640 backedges. 210 proven. 16590 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2020-07-20 01:59:44,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:59:44,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 110] total 112 [2020-07-20 01:59:44,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565503112] [2020-07-20 01:59:44,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 112 states [2020-07-20 01:59:44,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:59:44,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2020-07-20 01:59:44,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5788, Invalid=6644, Unknown=0, NotChecked=0, Total=12432 [2020-07-20 01:59:44,379 INFO L87 Difference]: Start difference. First operand 748 states and 748 transitions. Second operand 112 states. [2020-07-20 01:59:47,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:59:47,366 INFO L93 Difference]: Finished difference Result 758 states and 758 transitions. [2020-07-20 01:59:47,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-07-20 01:59:47,367 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 745 [2020-07-20 01:59:47,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:59:47,369 INFO L225 Difference]: With dead ends: 758 [2020-07-20 01:59:47,369 INFO L226 Difference]: Without dead ends: 756 [2020-07-20 01:59:47,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=5794, Invalid=6862, Unknown=0, NotChecked=0, Total=12656 [2020-07-20 01:59:47,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-07-20 01:59:47,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 755. [2020-07-20 01:59:47,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-07-20 01:59:47,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 755 transitions. [2020-07-20 01:59:47,377 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 755 transitions. Word has length 745 [2020-07-20 01:59:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:59:47,378 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 755 transitions. [2020-07-20 01:59:47,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 112 states. [2020-07-20 01:59:47,378 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 755 transitions. [2020-07-20 01:59:47,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2020-07-20 01:59:47,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:59:47,382 INFO L422 BasicCegarLoop]: trace histogram [107, 107, 107, 106, 106, 106, 106, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:59:47,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-07-20 01:59:47,583 INFO L427 AbstractCegarLoop]: === Iteration 107 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:59:47,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:59:47,584 INFO L82 PathProgramCache]: Analyzing trace with hash 500474837, now seen corresponding path program 106 times [2020-07-20 01:59:47,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:59:47,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739684692] [2020-07-20 01:59:47,584 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 01:59:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:59:56,769 INFO L134 CoverageAnalysis]: Checked inductivity of 39379 backedges. 212 proven. 16907 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2020-07-20 01:59:56,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739684692] [2020-07-20 01:59:56,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110291235] [2020-07-20 01:59:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@59b5942b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:59:56,954 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@59b5942b issued 4 check-sat command(s) [2020-07-20 01:59:56,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:59:56,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 110 conjunts are in the unsatisfiable core [2020-07-20 01:59:56,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:59:56,982 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:59:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 39379 backedges. 212 proven. 16907 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2020-07-20 01:59:57,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:59:57,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 111] total 113 [2020-07-20 01:59:57,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488760765] [2020-07-20 01:59:57,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2020-07-20 01:59:57,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:59:57,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2020-07-20 01:59:57,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5896, Invalid=6760, Unknown=0, NotChecked=0, Total=12656 [2020-07-20 01:59:57,423 INFO L87 Difference]: Start difference. First operand 755 states and 755 transitions. Second operand 113 states. [2020-07-20 02:00:00,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:00:00,186 INFO L93 Difference]: Finished difference Result 765 states and 765 transitions. [2020-07-20 02:00:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2020-07-20 02:00:00,187 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 752 [2020-07-20 02:00:00,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:00:00,189 INFO L225 Difference]: With dead ends: 765 [2020-07-20 02:00:00,189 INFO L226 Difference]: Without dead ends: 763 [2020-07-20 02:00:00,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=5902, Invalid=6980, Unknown=0, NotChecked=0, Total=12882 [2020-07-20 02:00:00,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-07-20 02:00:00,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 762. [2020-07-20 02:00:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-07-20 02:00:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 762 transitions. [2020-07-20 02:00:00,200 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 762 transitions. Word has length 752 [2020-07-20 02:00:00,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:00:00,201 INFO L479 AbstractCegarLoop]: Abstraction has 762 states and 762 transitions. [2020-07-20 02:00:00,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 113 states. [2020-07-20 02:00:00,201 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 762 transitions. [2020-07-20 02:00:00,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-07-20 02:00:00,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:00:00,206 INFO L422 BasicCegarLoop]: trace histogram [108, 108, 108, 107, 107, 107, 107, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:00:00,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:00:00,407 INFO L427 AbstractCegarLoop]: === Iteration 108 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:00:00,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:00:00,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1690663448, now seen corresponding path program 107 times [2020-07-20 02:00:00,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:00:00,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665547080] [2020-07-20 02:00:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:00:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:09,844 INFO L134 CoverageAnalysis]: Checked inductivity of 40125 backedges. 214 proven. 17227 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2020-07-20 02:00:09,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665547080] [2020-07-20 02:00:09,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994951907] [2020-07-20 02:00:09,845 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48ca21c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:00:10,027 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48ca21c issued 4 check-sat command(s) [2020-07-20 02:00:10,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:00:10,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 111 conjunts are in the unsatisfiable core [2020-07-20 02:00:10,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:00:10,056 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:00:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 40125 backedges. 214 proven. 17227 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2020-07-20 02:00:10,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:00:10,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112] total 114 [2020-07-20 02:00:10,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000133894] [2020-07-20 02:00:10,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 114 states [2020-07-20 02:00:10,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:00:10,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2020-07-20 02:00:10,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6005, Invalid=6877, Unknown=0, NotChecked=0, Total=12882 [2020-07-20 02:00:10,496 INFO L87 Difference]: Start difference. First operand 762 states and 762 transitions. Second operand 114 states. [2020-07-20 02:00:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:00:13,126 INFO L93 Difference]: Finished difference Result 772 states and 772 transitions. [2020-07-20 02:00:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2020-07-20 02:00:13,128 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 759 [2020-07-20 02:00:13,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:00:13,131 INFO L225 Difference]: With dead ends: 772 [2020-07-20 02:00:13,131 INFO L226 Difference]: Without dead ends: 770 [2020-07-20 02:00:13,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 974 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=6011, Invalid=7099, Unknown=0, NotChecked=0, Total=13110 [2020-07-20 02:00:13,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-07-20 02:00:13,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 769. [2020-07-20 02:00:13,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-07-20 02:00:13,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 769 transitions. [2020-07-20 02:00:13,142 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 769 transitions. Word has length 759 [2020-07-20 02:00:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:00:13,143 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 769 transitions. [2020-07-20 02:00:13,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 114 states. [2020-07-20 02:00:13,143 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 769 transitions. [2020-07-20 02:00:13,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2020-07-20 02:00:13,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:00:13,149 INFO L422 BasicCegarLoop]: trace histogram [109, 109, 109, 108, 108, 108, 108, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:00:13,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2020-07-20 02:00:13,362 INFO L427 AbstractCegarLoop]: === Iteration 109 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:00:13,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:00:13,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1316439947, now seen corresponding path program 108 times [2020-07-20 02:00:13,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:00:13,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92753449] [2020-07-20 02:00:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:00:13,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 40878 backedges. 216 proven. 17550 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2020-07-20 02:00:23,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92753449] [2020-07-20 02:00:23,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315921670] [2020-07-20 02:00:23,067 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3af0ebfd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:00:23,247 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3af0ebfd issued 4 check-sat command(s) [2020-07-20 02:00:23,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:00:23,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 112 conjunts are in the unsatisfiable core [2020-07-20 02:00:23,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:00:23,276 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:00:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 40878 backedges. 216 proven. 17550 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2020-07-20 02:00:23,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:00:23,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113] total 115 [2020-07-20 02:00:23,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449454144] [2020-07-20 02:00:23,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 115 states [2020-07-20 02:00:23,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:00:23,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2020-07-20 02:00:23,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6115, Invalid=6995, Unknown=0, NotChecked=0, Total=13110 [2020-07-20 02:00:23,729 INFO L87 Difference]: Start difference. First operand 769 states and 769 transitions. Second operand 115 states. [2020-07-20 02:00:26,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:00:26,404 INFO L93 Difference]: Finished difference Result 779 states and 779 transitions. [2020-07-20 02:00:26,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2020-07-20 02:00:26,405 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 766 [2020-07-20 02:00:26,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:00:26,408 INFO L225 Difference]: With dead ends: 779 [2020-07-20 02:00:26,408 INFO L226 Difference]: Without dead ends: 777 [2020-07-20 02:00:26,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=6121, Invalid=7219, Unknown=0, NotChecked=0, Total=13340 [2020-07-20 02:00:26,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-07-20 02:00:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 776. [2020-07-20 02:00:26,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-07-20 02:00:26,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 776 transitions. [2020-07-20 02:00:26,417 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 776 transitions. Word has length 766 [2020-07-20 02:00:26,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:00:26,417 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 776 transitions. [2020-07-20 02:00:26,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 115 states. [2020-07-20 02:00:26,417 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 776 transitions. [2020-07-20 02:00:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2020-07-20 02:00:26,421 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:00:26,422 INFO L422 BasicCegarLoop]: trace histogram [110, 110, 110, 109, 109, 109, 109, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:00:26,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:00:26,623 INFO L427 AbstractCegarLoop]: === Iteration 110 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:00:26,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:00:26,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1186726584, now seen corresponding path program 109 times [2020-07-20 02:00:26,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:00:26,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115155126] [2020-07-20 02:00:26,625 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:00:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 41638 backedges. 218 proven. 17876 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2020-07-20 02:00:36,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115155126] [2020-07-20 02:00:36,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195058870] [2020-07-20 02:00:36,554 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d51d61f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:00:36,735 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d51d61f issued 4 check-sat command(s) [2020-07-20 02:00:36,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:00:36,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 113 conjunts are in the unsatisfiable core [2020-07-20 02:00:36,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:00:36,765 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:00:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 41638 backedges. 218 proven. 17876 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2020-07-20 02:00:37,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:00:37,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 114] total 116 [2020-07-20 02:00:37,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791559216] [2020-07-20 02:00:37,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 116 states [2020-07-20 02:00:37,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:00:37,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2020-07-20 02:00:37,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6226, Invalid=7114, Unknown=0, NotChecked=0, Total=13340 [2020-07-20 02:00:37,423 INFO L87 Difference]: Start difference. First operand 776 states and 776 transitions. Second operand 116 states. [2020-07-20 02:00:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:00:40,018 INFO L93 Difference]: Finished difference Result 786 states and 786 transitions. [2020-07-20 02:00:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2020-07-20 02:00:40,019 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 773 [2020-07-20 02:00:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:00:40,022 INFO L225 Difference]: With dead ends: 786 [2020-07-20 02:00:40,022 INFO L226 Difference]: Without dead ends: 784 [2020-07-20 02:00:40,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=6232, Invalid=7340, Unknown=0, NotChecked=0, Total=13572 [2020-07-20 02:00:40,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-07-20 02:00:40,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 783. [2020-07-20 02:00:40,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-07-20 02:00:40,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 783 transitions. [2020-07-20 02:00:40,034 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 783 transitions. Word has length 773 [2020-07-20 02:00:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:00:40,035 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 783 transitions. [2020-07-20 02:00:40,035 INFO L480 AbstractCegarLoop]: Interpolant automaton has 116 states. [2020-07-20 02:00:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 783 transitions. [2020-07-20 02:00:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-07-20 02:00:40,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:00:40,041 INFO L422 BasicCegarLoop]: trace histogram [111, 111, 111, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:00:40,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2020-07-20 02:00:40,257 INFO L427 AbstractCegarLoop]: === Iteration 111 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:00:40,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:00:40,257 INFO L82 PathProgramCache]: Analyzing trace with hash 128726293, now seen corresponding path program 110 times [2020-07-20 02:00:40,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:00:40,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014919549] [2020-07-20 02:00:40,258 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:00:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:00:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 42405 backedges. 220 proven. 18205 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2020-07-20 02:00:50,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014919549] [2020-07-20 02:00:50,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050170297] [2020-07-20 02:00:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43b20abe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:00:50,645 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@43b20abe issued 4 check-sat command(s) [2020-07-20 02:00:50,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:00:50,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 114 conjunts are in the unsatisfiable core [2020-07-20 02:00:50,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:00:50,682 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:00:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 42405 backedges. 220 proven. 18205 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2020-07-20 02:00:51,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:00:51,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 115] total 117 [2020-07-20 02:00:51,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309205487] [2020-07-20 02:00:51,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 117 states [2020-07-20 02:00:51,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:00:51,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2020-07-20 02:00:51,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6338, Invalid=7234, Unknown=0, NotChecked=0, Total=13572 [2020-07-20 02:00:51,167 INFO L87 Difference]: Start difference. First operand 783 states and 783 transitions. Second operand 117 states. [2020-07-20 02:00:53,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:00:53,784 INFO L93 Difference]: Finished difference Result 793 states and 793 transitions. [2020-07-20 02:00:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2020-07-20 02:00:53,785 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 780 [2020-07-20 02:00:53,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:00:53,787 INFO L225 Difference]: With dead ends: 793 [2020-07-20 02:00:53,787 INFO L226 Difference]: Without dead ends: 791 [2020-07-20 02:00:53,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1117 GetRequests, 1001 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=6344, Invalid=7462, Unknown=0, NotChecked=0, Total=13806 [2020-07-20 02:00:53,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-07-20 02:00:53,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 790. [2020-07-20 02:00:53,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-07-20 02:00:53,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 790 transitions. [2020-07-20 02:00:53,799 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 790 transitions. Word has length 780 [2020-07-20 02:00:53,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:00:53,800 INFO L479 AbstractCegarLoop]: Abstraction has 790 states and 790 transitions. [2020-07-20 02:00:53,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 117 states. [2020-07-20 02:00:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 790 transitions. [2020-07-20 02:00:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-07-20 02:00:53,805 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:00:53,805 INFO L422 BasicCegarLoop]: trace histogram [112, 112, 112, 111, 111, 111, 111, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:00:54,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,111 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:00:54,021 INFO L427 AbstractCegarLoop]: === Iteration 112 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:00:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:00:54,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1002894168, now seen corresponding path program 111 times [2020-07-20 02:00:54,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:00:54,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843550149] [2020-07-20 02:00:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:00:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 43179 backedges. 222 proven. 18537 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2020-07-20 02:01:04,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843550149] [2020-07-20 02:01:04,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109690054] [2020-07-20 02:01:04,594 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7d0c338b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:01:04,780 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7d0c338b issued 4 check-sat command(s) [2020-07-20 02:01:04,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:01:04,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 115 conjunts are in the unsatisfiable core [2020-07-20 02:01:04,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:01:04,811 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:01:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 43179 backedges. 222 proven. 18537 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2020-07-20 02:01:05,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:01:05,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 116] total 118 [2020-07-20 02:01:05,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008303832] [2020-07-20 02:01:05,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 118 states [2020-07-20 02:01:05,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:01:05,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2020-07-20 02:01:05,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6451, Invalid=7355, Unknown=0, NotChecked=0, Total=13806 [2020-07-20 02:01:05,280 INFO L87 Difference]: Start difference. First operand 790 states and 790 transitions. Second operand 118 states. [2020-07-20 02:01:08,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:01:08,052 INFO L93 Difference]: Finished difference Result 800 states and 800 transitions. [2020-07-20 02:01:08,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2020-07-20 02:01:08,054 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 787 [2020-07-20 02:01:08,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:01:08,057 INFO L225 Difference]: With dead ends: 800 [2020-07-20 02:01:08,057 INFO L226 Difference]: Without dead ends: 798 [2020-07-20 02:01:08,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1127 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=6457, Invalid=7585, Unknown=0, NotChecked=0, Total=14042 [2020-07-20 02:01:08,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-07-20 02:01:08,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 797. [2020-07-20 02:01:08,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-07-20 02:01:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 797 transitions. [2020-07-20 02:01:08,069 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 797 transitions. Word has length 787 [2020-07-20 02:01:08,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:01:08,070 INFO L479 AbstractCegarLoop]: Abstraction has 797 states and 797 transitions. [2020-07-20 02:01:08,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 118 states. [2020-07-20 02:01:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 797 transitions. [2020-07-20 02:01:08,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2020-07-20 02:01:08,076 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:01:08,076 INFO L422 BasicCegarLoop]: trace histogram [113, 113, 113, 112, 112, 112, 112, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:01:08,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2020-07-20 02:01:08,290 INFO L427 AbstractCegarLoop]: === Iteration 113 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:01:08,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:01:08,290 INFO L82 PathProgramCache]: Analyzing trace with hash -718726731, now seen corresponding path program 112 times [2020-07-20 02:01:08,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:01:08,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472514493] [2020-07-20 02:01:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:01:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:19,141 INFO L134 CoverageAnalysis]: Checked inductivity of 43960 backedges. 224 proven. 18872 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2020-07-20 02:01:19,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472514493] [2020-07-20 02:01:19,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899136150] [2020-07-20 02:01:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b6a144f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:01:19,328 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b6a144f issued 4 check-sat command(s) [2020-07-20 02:01:19,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:01:19,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 116 conjunts are in the unsatisfiable core [2020-07-20 02:01:19,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:01:19,358 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:01:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 43960 backedges. 224 proven. 18872 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2020-07-20 02:01:19,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:01:19,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 117] total 119 [2020-07-20 02:01:19,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032571586] [2020-07-20 02:01:19,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 119 states [2020-07-20 02:01:19,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:01:19,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2020-07-20 02:01:19,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6565, Invalid=7477, Unknown=0, NotChecked=0, Total=14042 [2020-07-20 02:01:19,815 INFO L87 Difference]: Start difference. First operand 797 states and 797 transitions. Second operand 119 states. [2020-07-20 02:01:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:01:22,527 INFO L93 Difference]: Finished difference Result 807 states and 807 transitions. [2020-07-20 02:01:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2020-07-20 02:01:22,528 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 794 [2020-07-20 02:01:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:01:22,530 INFO L225 Difference]: With dead ends: 807 [2020-07-20 02:01:22,530 INFO L226 Difference]: Without dead ends: 805 [2020-07-20 02:01:22,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1137 GetRequests, 1019 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=6571, Invalid=7709, Unknown=0, NotChecked=0, Total=14280 [2020-07-20 02:01:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-07-20 02:01:22,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 804. [2020-07-20 02:01:22,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-07-20 02:01:22,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 804 transitions. [2020-07-20 02:01:22,541 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 804 transitions. Word has length 794 [2020-07-20 02:01:22,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:01:22,542 INFO L479 AbstractCegarLoop]: Abstraction has 804 states and 804 transitions. [2020-07-20 02:01:22,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 119 states. [2020-07-20 02:01:22,542 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 804 transitions. [2020-07-20 02:01:22,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-07-20 02:01:22,548 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:01:22,548 INFO L422 BasicCegarLoop]: trace histogram [114, 114, 114, 113, 113, 113, 113, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:01:22,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2020-07-20 02:01:22,751 INFO L427 AbstractCegarLoop]: === Iteration 114 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:01:22,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:01:22,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1947225080, now seen corresponding path program 113 times [2020-07-20 02:01:22,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:01:22,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52863840] [2020-07-20 02:01:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:01:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 44748 backedges. 226 proven. 19210 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2020-07-20 02:01:33,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52863840] [2020-07-20 02:01:33,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336049978] [2020-07-20 02:01:33,924 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7178c040 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:01:34,113 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7178c040 issued 4 check-sat command(s) [2020-07-20 02:01:34,113 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:01:34,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 117 conjunts are in the unsatisfiable core [2020-07-20 02:01:34,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:01:34,143 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:01:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 44748 backedges. 226 proven. 19210 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2020-07-20 02:01:34,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:01:34,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118] total 120 [2020-07-20 02:01:34,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784005082] [2020-07-20 02:01:34,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 120 states [2020-07-20 02:01:34,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:01:34,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2020-07-20 02:01:34,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6680, Invalid=7600, Unknown=0, NotChecked=0, Total=14280 [2020-07-20 02:01:34,642 INFO L87 Difference]: Start difference. First operand 804 states and 804 transitions. Second operand 120 states. [2020-07-20 02:01:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:01:37,851 INFO L93 Difference]: Finished difference Result 814 states and 814 transitions. [2020-07-20 02:01:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-07-20 02:01:37,852 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 801 [2020-07-20 02:01:37,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:01:37,855 INFO L225 Difference]: With dead ends: 814 [2020-07-20 02:01:37,855 INFO L226 Difference]: Without dead ends: 812 [2020-07-20 02:01:37,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=6686, Invalid=7834, Unknown=0, NotChecked=0, Total=14520 [2020-07-20 02:01:37,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-07-20 02:01:37,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 811. [2020-07-20 02:01:37,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-07-20 02:01:37,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 811 transitions. [2020-07-20 02:01:37,865 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 811 transitions. Word has length 801 [2020-07-20 02:01:37,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:01:37,866 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 811 transitions. [2020-07-20 02:01:37,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 120 states. [2020-07-20 02:01:37,866 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 811 transitions. [2020-07-20 02:01:37,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2020-07-20 02:01:37,871 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:01:37,871 INFO L422 BasicCegarLoop]: trace histogram [115, 115, 115, 114, 114, 114, 114, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:01:38,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2020-07-20 02:01:38,073 INFO L427 AbstractCegarLoop]: === Iteration 115 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:01:38,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:01:38,073 INFO L82 PathProgramCache]: Analyzing trace with hash -311859627, now seen corresponding path program 114 times [2020-07-20 02:01:38,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:01:38,074 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187935058] [2020-07-20 02:01:38,074 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:01:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:01:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 45543 backedges. 228 proven. 19551 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2020-07-20 02:01:49,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187935058] [2020-07-20 02:01:49,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837291945] [2020-07-20 02:01:49,610 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65e8dcd4 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:01:49,802 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65e8dcd4 issued 4 check-sat command(s) [2020-07-20 02:01:49,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:01:49,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 118 conjunts are in the unsatisfiable core [2020-07-20 02:01:49,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:01:49,834 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:01:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 45543 backedges. 228 proven. 19551 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2020-07-20 02:01:50,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:01:50,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 119] total 121 [2020-07-20 02:01:50,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901360973] [2020-07-20 02:01:50,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 121 states [2020-07-20 02:01:50,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:01:50,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2020-07-20 02:01:50,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6796, Invalid=7724, Unknown=0, NotChecked=0, Total=14520 [2020-07-20 02:01:50,313 INFO L87 Difference]: Start difference. First operand 811 states and 811 transitions. Second operand 121 states. [2020-07-20 02:01:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:01:53,551 INFO L93 Difference]: Finished difference Result 821 states and 821 transitions. [2020-07-20 02:01:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2020-07-20 02:01:53,552 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 808 [2020-07-20 02:01:53,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:01:53,554 INFO L225 Difference]: With dead ends: 821 [2020-07-20 02:01:53,554 INFO L226 Difference]: Without dead ends: 819 [2020-07-20 02:01:53,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1157 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=6802, Invalid=7960, Unknown=0, NotChecked=0, Total=14762 [2020-07-20 02:01:53,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-07-20 02:01:53,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 818. [2020-07-20 02:01:53,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-20 02:01:53,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 818 transitions. [2020-07-20 02:01:53,567 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 818 transitions. Word has length 808 [2020-07-20 02:01:53,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:01:53,568 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 818 transitions. [2020-07-20 02:01:53,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 121 states. [2020-07-20 02:01:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 818 transitions. [2020-07-20 02:01:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2020-07-20 02:01:53,574 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:01:53,576 INFO L422 BasicCegarLoop]: trace histogram [116, 116, 116, 115, 115, 115, 115, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:01:53,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:01:53,791 INFO L427 AbstractCegarLoop]: === Iteration 116 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:01:53,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:01:53,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1908274024, now seen corresponding path program 115 times [2020-07-20 02:01:53,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:01:53,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834386635] [2020-07-20 02:01:53,792 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:01:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 46345 backedges. 230 proven. 19895 refuted. 0 times theorem prover too weak. 26220 trivial. 0 not checked. [2020-07-20 02:02:05,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834386635] [2020-07-20 02:02:05,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425832625] [2020-07-20 02:02:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5941556c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:02:05,856 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5941556c issued 4 check-sat command(s) [2020-07-20 02:02:05,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:02:05,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 119 conjunts are in the unsatisfiable core [2020-07-20 02:02:05,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:02:05,887 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:02:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 46345 backedges. 230 proven. 19895 refuted. 0 times theorem prover too weak. 26220 trivial. 0 not checked. [2020-07-20 02:02:06,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:02:06,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120] total 122 [2020-07-20 02:02:06,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707294208] [2020-07-20 02:02:06,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 122 states [2020-07-20 02:02:06,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:02:06,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2020-07-20 02:02:06,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6913, Invalid=7849, Unknown=0, NotChecked=0, Total=14762 [2020-07-20 02:02:06,396 INFO L87 Difference]: Start difference. First operand 818 states and 818 transitions. Second operand 122 states. [2020-07-20 02:02:09,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:02:09,657 INFO L93 Difference]: Finished difference Result 828 states and 828 transitions. [2020-07-20 02:02:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2020-07-20 02:02:09,659 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 815 [2020-07-20 02:02:09,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:02:09,661 INFO L225 Difference]: With dead ends: 828 [2020-07-20 02:02:09,661 INFO L226 Difference]: Without dead ends: 826 [2020-07-20 02:02:09,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=6919, Invalid=8087, Unknown=0, NotChecked=0, Total=15006 [2020-07-20 02:02:09,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-07-20 02:02:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 825. [2020-07-20 02:02:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-07-20 02:02:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 825 transitions. [2020-07-20 02:02:09,674 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 825 transitions. Word has length 815 [2020-07-20 02:02:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:02:09,675 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 825 transitions. [2020-07-20 02:02:09,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 122 states. [2020-07-20 02:02:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 825 transitions. [2020-07-20 02:02:09,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-07-20 02:02:09,681 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:02:09,681 INFO L422 BasicCegarLoop]: trace histogram [117, 117, 117, 116, 116, 116, 116, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:02:09,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2020-07-20 02:02:09,896 INFO L427 AbstractCegarLoop]: === Iteration 117 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:02:09,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:02:09,896 INFO L82 PathProgramCache]: Analyzing trace with hash -497607947, now seen corresponding path program 116 times [2020-07-20 02:02:09,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:02:09,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585783034] [2020-07-20 02:02:09,897 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:02:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 47154 backedges. 232 proven. 20242 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2020-07-20 02:02:22,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585783034] [2020-07-20 02:02:22,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048863928] [2020-07-20 02:02:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@248ddda8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:02:22,404 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@248ddda8 issued 4 check-sat command(s) [2020-07-20 02:02:22,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:02:22,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 120 conjunts are in the unsatisfiable core [2020-07-20 02:02:22,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:02:22,435 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:02:22,927 INFO L134 CoverageAnalysis]: Checked inductivity of 47154 backedges. 232 proven. 20242 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2020-07-20 02:02:22,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:02:22,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 121] total 123 [2020-07-20 02:02:22,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980857586] [2020-07-20 02:02:22,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 123 states [2020-07-20 02:02:22,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:02:22,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2020-07-20 02:02:22,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7031, Invalid=7975, Unknown=0, NotChecked=0, Total=15006 [2020-07-20 02:02:22,929 INFO L87 Difference]: Start difference. First operand 825 states and 825 transitions. Second operand 123 states. [2020-07-20 02:02:26,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:02:26,371 INFO L93 Difference]: Finished difference Result 835 states and 835 transitions. [2020-07-20 02:02:26,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2020-07-20 02:02:26,373 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 822 [2020-07-20 02:02:26,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:02:26,375 INFO L225 Difference]: With dead ends: 835 [2020-07-20 02:02:26,375 INFO L226 Difference]: Without dead ends: 833 [2020-07-20 02:02:26,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1177 GetRequests, 1055 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=7037, Invalid=8215, Unknown=0, NotChecked=0, Total=15252 [2020-07-20 02:02:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-07-20 02:02:26,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 832. [2020-07-20 02:02:26,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-07-20 02:02:26,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 832 transitions. [2020-07-20 02:02:26,386 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 832 transitions. Word has length 822 [2020-07-20 02:02:26,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:02:26,387 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 832 transitions. [2020-07-20 02:02:26,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 123 states. [2020-07-20 02:02:26,387 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 832 transitions. [2020-07-20 02:02:26,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2020-07-20 02:02:26,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:02:26,393 INFO L422 BasicCegarLoop]: trace histogram [118, 118, 118, 117, 117, 117, 117, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:02:26,594 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:02:26,594 INFO L427 AbstractCegarLoop]: === Iteration 118 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:02:26,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:02:26,595 INFO L82 PathProgramCache]: Analyzing trace with hash -931542328, now seen corresponding path program 117 times [2020-07-20 02:02:26,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:02:26,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673645125] [2020-07-20 02:02:26,596 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:02:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 47970 backedges. 234 proven. 20592 refuted. 0 times theorem prover too weak. 27144 trivial. 0 not checked. [2020-07-20 02:02:39,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673645125] [2020-07-20 02:02:39,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962217056] [2020-07-20 02:02:39,239 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4bbb8366 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:02:39,430 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4bbb8366 issued 4 check-sat command(s) [2020-07-20 02:02:39,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:02:39,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 121 conjunts are in the unsatisfiable core [2020-07-20 02:02:39,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:02:39,464 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:02:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 47970 backedges. 234 proven. 20592 refuted. 0 times theorem prover too weak. 27144 trivial. 0 not checked. [2020-07-20 02:02:39,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:02:39,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 122] total 124 [2020-07-20 02:02:39,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443230195] [2020-07-20 02:02:39,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 124 states [2020-07-20 02:02:39,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:02:39,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2020-07-20 02:02:39,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7150, Invalid=8102, Unknown=0, NotChecked=0, Total=15252 [2020-07-20 02:02:39,999 INFO L87 Difference]: Start difference. First operand 832 states and 832 transitions. Second operand 124 states. [2020-07-20 02:02:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:02:43,630 INFO L93 Difference]: Finished difference Result 842 states and 842 transitions. [2020-07-20 02:02:43,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2020-07-20 02:02:43,632 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 829 [2020-07-20 02:02:43,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:02:43,633 INFO L225 Difference]: With dead ends: 842 [2020-07-20 02:02:43,633 INFO L226 Difference]: Without dead ends: 840 [2020-07-20 02:02:43,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=7156, Invalid=8344, Unknown=0, NotChecked=0, Total=15500 [2020-07-20 02:02:43,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-07-20 02:02:43,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 839. [2020-07-20 02:02:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2020-07-20 02:02:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 839 transitions. [2020-07-20 02:02:43,644 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 839 transitions. Word has length 829 [2020-07-20 02:02:43,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:02:43,645 INFO L479 AbstractCegarLoop]: Abstraction has 839 states and 839 transitions. [2020-07-20 02:02:43,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 124 states. [2020-07-20 02:02:43,645 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 839 transitions. [2020-07-20 02:02:43,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2020-07-20 02:02:43,651 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:02:43,651 INFO L422 BasicCegarLoop]: trace histogram [119, 119, 119, 118, 118, 118, 118, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:02:43,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:02:43,866 INFO L427 AbstractCegarLoop]: === Iteration 119 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:02:43,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:02:43,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1537460331, now seen corresponding path program 118 times [2020-07-20 02:02:43,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:02:43,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946208270] [2020-07-20 02:02:43,867 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:02:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:02:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 48793 backedges. 236 proven. 20945 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2020-07-20 02:02:56,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946208270] [2020-07-20 02:02:56,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892577703] [2020-07-20 02:02:56,824 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70a5a66e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:02:57,020 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70a5a66e issued 4 check-sat command(s) [2020-07-20 02:02:57,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:02:57,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 122 conjunts are in the unsatisfiable core [2020-07-20 02:02:57,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:02:57,056 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:02:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 48793 backedges. 236 proven. 20945 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2020-07-20 02:02:57,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:02:57,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [123, 123] total 125 [2020-07-20 02:02:57,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034269210] [2020-07-20 02:02:57,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 125 states [2020-07-20 02:02:57,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:02:57,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2020-07-20 02:02:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7270, Invalid=8230, Unknown=0, NotChecked=0, Total=15500 [2020-07-20 02:02:57,590 INFO L87 Difference]: Start difference. First operand 839 states and 839 transitions. Second operand 125 states. [2020-07-20 02:03:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:03:01,360 INFO L93 Difference]: Finished difference Result 849 states and 849 transitions. [2020-07-20 02:03:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-07-20 02:03:01,362 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 836 [2020-07-20 02:03:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:03:01,364 INFO L225 Difference]: With dead ends: 849 [2020-07-20 02:03:01,365 INFO L226 Difference]: Without dead ends: 847 [2020-07-20 02:03:01,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1073 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=7276, Invalid=8474, Unknown=0, NotChecked=0, Total=15750 [2020-07-20 02:03:01,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-07-20 02:03:01,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 846. [2020-07-20 02:03:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-07-20 02:03:01,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 846 transitions. [2020-07-20 02:03:01,377 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 846 transitions. Word has length 836 [2020-07-20 02:03:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:03:01,378 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 846 transitions. [2020-07-20 02:03:01,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 125 states. [2020-07-20 02:03:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 846 transitions. [2020-07-20 02:03:01,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-07-20 02:03:01,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:03:01,385 INFO L422 BasicCegarLoop]: trace histogram [120, 120, 120, 119, 119, 119, 119, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:03:01,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2020-07-20 02:03:01,601 INFO L427 AbstractCegarLoop]: === Iteration 120 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:03:01,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:03:01,601 INFO L82 PathProgramCache]: Analyzing trace with hash 880359976, now seen corresponding path program 119 times [2020-07-20 02:03:01,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:03:01,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243009430] [2020-07-20 02:03:01,602 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:03:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 49623 backedges. 238 proven. 21301 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2020-07-20 02:03:14,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243009430] [2020-07-20 02:03:14,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849413978] [2020-07-20 02:03:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2c7c8475 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:03:15,156 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2c7c8475 issued 4 check-sat command(s) [2020-07-20 02:03:15,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:03:15,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 123 conjunts are in the unsatisfiable core [2020-07-20 02:03:15,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:03:15,187 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:03:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 49623 backedges. 238 proven. 21301 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2020-07-20 02:03:15,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:03:15,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 124] total 126 [2020-07-20 02:03:15,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79945743] [2020-07-20 02:03:15,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 126 states [2020-07-20 02:03:15,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:03:15,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2020-07-20 02:03:15,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7391, Invalid=8359, Unknown=0, NotChecked=0, Total=15750 [2020-07-20 02:03:15,713 INFO L87 Difference]: Start difference. First operand 846 states and 846 transitions. Second operand 126 states. [2020-07-20 02:03:19,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:03:19,638 INFO L93 Difference]: Finished difference Result 856 states and 856 transitions. [2020-07-20 02:03:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2020-07-20 02:03:19,639 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 843 [2020-07-20 02:03:19,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:03:19,641 INFO L225 Difference]: With dead ends: 856 [2020-07-20 02:03:19,641 INFO L226 Difference]: Without dead ends: 854 [2020-07-20 02:03:19,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1207 GetRequests, 1082 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=7397, Invalid=8605, Unknown=0, NotChecked=0, Total=16002 [2020-07-20 02:03:19,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-07-20 02:03:19,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 853. [2020-07-20 02:03:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-07-20 02:03:19,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 853 transitions. [2020-07-20 02:03:19,650 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 853 transitions. Word has length 843 [2020-07-20 02:03:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:03:19,651 INFO L479 AbstractCegarLoop]: Abstraction has 853 states and 853 transitions. [2020-07-20 02:03:19,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 126 states. [2020-07-20 02:03:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 853 transitions. [2020-07-20 02:03:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2020-07-20 02:03:19,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:03:19,656 INFO L422 BasicCegarLoop]: trace histogram [121, 121, 121, 120, 120, 120, 120, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:03:19,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:03:19,857 INFO L427 AbstractCegarLoop]: === Iteration 121 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:03:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:03:19,857 INFO L82 PathProgramCache]: Analyzing trace with hash 576896053, now seen corresponding path program 120 times [2020-07-20 02:03:19,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:03:19,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986962515] [2020-07-20 02:03:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:03:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:33,763 INFO L134 CoverageAnalysis]: Checked inductivity of 50460 backedges. 240 proven. 21660 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2020-07-20 02:03:33,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986962515] [2020-07-20 02:03:33,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830323002] [2020-07-20 02:03:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b38e543 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:03:33,980 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b38e543 issued 4 check-sat command(s) [2020-07-20 02:03:33,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:03:33,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 124 conjunts are in the unsatisfiable core [2020-07-20 02:03:33,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:03:34,018 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:03:34,580 INFO L134 CoverageAnalysis]: Checked inductivity of 50460 backedges. 240 proven. 21660 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2020-07-20 02:03:34,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:03:34,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [125, 125] total 127 [2020-07-20 02:03:34,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261907292] [2020-07-20 02:03:34,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 127 states [2020-07-20 02:03:34,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:03:34,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2020-07-20 02:03:34,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7513, Invalid=8489, Unknown=0, NotChecked=0, Total=16002 [2020-07-20 02:03:34,582 INFO L87 Difference]: Start difference. First operand 853 states and 853 transitions. Second operand 127 states. [2020-07-20 02:03:38,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:03:38,567 INFO L93 Difference]: Finished difference Result 863 states and 863 transitions. [2020-07-20 02:03:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2020-07-20 02:03:38,568 INFO L78 Accepts]: Start accepts. Automaton has 127 states. Word has length 850 [2020-07-20 02:03:38,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:03:38,570 INFO L225 Difference]: With dead ends: 863 [2020-07-20 02:03:38,570 INFO L226 Difference]: Without dead ends: 861 [2020-07-20 02:03:38,571 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1217 GetRequests, 1091 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=7519, Invalid=8737, Unknown=0, NotChecked=0, Total=16256 [2020-07-20 02:03:38,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-07-20 02:03:38,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 860. [2020-07-20 02:03:38,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 860 states. [2020-07-20 02:03:38,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 860 transitions. [2020-07-20 02:03:38,582 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 860 transitions. Word has length 850 [2020-07-20 02:03:38,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:03:38,582 INFO L479 AbstractCegarLoop]: Abstraction has 860 states and 860 transitions. [2020-07-20 02:03:38,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 127 states. [2020-07-20 02:03:38,582 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 860 transitions. [2020-07-20 02:03:38,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2020-07-20 02:03:38,588 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:03:38,588 INFO L422 BasicCegarLoop]: trace histogram [122, 122, 122, 121, 121, 121, 121, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:03:38,801 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:03:38,802 INFO L427 AbstractCegarLoop]: === Iteration 122 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:03:38,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:03:38,802 INFO L82 PathProgramCache]: Analyzing trace with hash 194134408, now seen corresponding path program 121 times [2020-07-20 02:03:38,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:03:38,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619824660] [2020-07-20 02:03:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:03:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:03:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 51304 backedges. 242 proven. 22022 refuted. 0 times theorem prover too weak. 29040 trivial. 0 not checked. [2020-07-20 02:03:53,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619824660] [2020-07-20 02:03:53,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929163840] [2020-07-20 02:03:53,088 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@281e6bcd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:03:53,292 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@281e6bcd issued 4 check-sat command(s) [2020-07-20 02:03:53,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:03:53,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 125 conjunts are in the unsatisfiable core [2020-07-20 02:03:53,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:03:53,323 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:03:53,878 INFO L134 CoverageAnalysis]: Checked inductivity of 51304 backedges. 242 proven. 22022 refuted. 0 times theorem prover too weak. 29040 trivial. 0 not checked. [2020-07-20 02:03:53,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:03:53,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [126, 126] total 128 [2020-07-20 02:03:53,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466959222] [2020-07-20 02:03:53,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 128 states [2020-07-20 02:03:53,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:03:53,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2020-07-20 02:03:53,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7636, Invalid=8620, Unknown=0, NotChecked=0, Total=16256 [2020-07-20 02:03:53,881 INFO L87 Difference]: Start difference. First operand 860 states and 860 transitions. Second operand 128 states. [2020-07-20 02:03:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:03:57,527 INFO L93 Difference]: Finished difference Result 870 states and 870 transitions. [2020-07-20 02:03:57,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2020-07-20 02:03:57,529 INFO L78 Accepts]: Start accepts. Automaton has 128 states. Word has length 857 [2020-07-20 02:03:57,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:03:57,531 INFO L225 Difference]: With dead ends: 870 [2020-07-20 02:03:57,531 INFO L226 Difference]: Without dead ends: 868 [2020-07-20 02:03:57,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1227 GetRequests, 1100 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=7642, Invalid=8870, Unknown=0, NotChecked=0, Total=16512 [2020-07-20 02:03:57,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2020-07-20 02:03:57,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 867. [2020-07-20 02:03:57,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-07-20 02:03:57,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 867 transitions. [2020-07-20 02:03:57,540 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 867 transitions. Word has length 857 [2020-07-20 02:03:57,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:03:57,541 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 867 transitions. [2020-07-20 02:03:57,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 128 states. [2020-07-20 02:03:57,541 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 867 transitions. [2020-07-20 02:03:57,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 865 [2020-07-20 02:03:57,545 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:03:57,545 INFO L422 BasicCegarLoop]: trace histogram [123, 123, 123, 122, 122, 122, 122, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:03:57,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,122 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:03:57,746 INFO L427 AbstractCegarLoop]: === Iteration 123 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:03:57,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:03:57,747 INFO L82 PathProgramCache]: Analyzing trace with hash -371939115, now seen corresponding path program 122 times [2020-07-20 02:03:57,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:03:57,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283248159] [2020-07-20 02:03:57,748 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:03:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:11,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:12,362 INFO L134 CoverageAnalysis]: Checked inductivity of 52155 backedges. 244 proven. 22387 refuted. 0 times theorem prover too weak. 29524 trivial. 0 not checked. [2020-07-20 02:04:12,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283248159] [2020-07-20 02:04:12,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601552509] [2020-07-20 02:04:12,363 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@71083325 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:04:12,563 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@71083325 issued 4 check-sat command(s) [2020-07-20 02:04:12,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:04:12,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 126 conjunts are in the unsatisfiable core [2020-07-20 02:04:12,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:04:12,595 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:04:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 52155 backedges. 244 proven. 22387 refuted. 0 times theorem prover too weak. 29524 trivial. 0 not checked. [2020-07-20 02:04:13,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:04:13,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 127] total 129 [2020-07-20 02:04:13,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758614160] [2020-07-20 02:04:13,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 129 states [2020-07-20 02:04:13,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:04:13,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2020-07-20 02:04:13,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7760, Invalid=8752, Unknown=0, NotChecked=0, Total=16512 [2020-07-20 02:04:13,174 INFO L87 Difference]: Start difference. First operand 867 states and 867 transitions. Second operand 129 states. [2020-07-20 02:04:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:04:17,049 INFO L93 Difference]: Finished difference Result 877 states and 877 transitions. [2020-07-20 02:04:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2020-07-20 02:04:17,051 INFO L78 Accepts]: Start accepts. Automaton has 129 states. Word has length 864 [2020-07-20 02:04:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:04:17,053 INFO L225 Difference]: With dead ends: 877 [2020-07-20 02:04:17,053 INFO L226 Difference]: Without dead ends: 875 [2020-07-20 02:04:17,053 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1237 GetRequests, 1109 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=7766, Invalid=9004, Unknown=0, NotChecked=0, Total=16770 [2020-07-20 02:04:17,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2020-07-20 02:04:17,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 874. [2020-07-20 02:04:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2020-07-20 02:04:17,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 874 transitions. [2020-07-20 02:04:17,062 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 874 transitions. Word has length 864 [2020-07-20 02:04:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:04:17,063 INFO L479 AbstractCegarLoop]: Abstraction has 874 states and 874 transitions. [2020-07-20 02:04:17,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 129 states. [2020-07-20 02:04:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 874 transitions. [2020-07-20 02:04:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 872 [2020-07-20 02:04:17,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:04:17,067 INFO L422 BasicCegarLoop]: trace histogram [124, 124, 124, 123, 123, 123, 123, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:04:17,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:04:17,268 INFO L427 AbstractCegarLoop]: === Iteration 124 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:04:17,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:04:17,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1256529688, now seen corresponding path program 123 times [2020-07-20 02:04:17,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:04:17,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909868334] [2020-07-20 02:04:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:04:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 53013 backedges. 246 proven. 22755 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2020-07-20 02:04:32,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909868334] [2020-07-20 02:04:32,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566546464] [2020-07-20 02:04:32,487 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4fc5cb6a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:04:32,693 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4fc5cb6a issued 4 check-sat command(s) [2020-07-20 02:04:32,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:04:32,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 1498 conjuncts, 127 conjunts are in the unsatisfiable core [2020-07-20 02:04:32,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:04:32,725 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:04:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 53013 backedges. 246 proven. 22755 refuted. 0 times theorem prover too weak. 30012 trivial. 0 not checked. [2020-07-20 02:04:33,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:04:33,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128] total 130 [2020-07-20 02:04:33,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526536469] [2020-07-20 02:04:33,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 130 states [2020-07-20 02:04:33,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:04:33,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2020-07-20 02:04:33,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7885, Invalid=8885, Unknown=0, NotChecked=0, Total=16770 [2020-07-20 02:04:33,298 INFO L87 Difference]: Start difference. First operand 874 states and 874 transitions. Second operand 130 states. [2020-07-20 02:04:37,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:04:37,360 INFO L93 Difference]: Finished difference Result 884 states and 884 transitions. [2020-07-20 02:04:37,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2020-07-20 02:04:37,362 INFO L78 Accepts]: Start accepts. Automaton has 130 states. Word has length 871 [2020-07-20 02:04:37,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:04:37,364 INFO L225 Difference]: With dead ends: 884 [2020-07-20 02:04:37,364 INFO L226 Difference]: Without dead ends: 882 [2020-07-20 02:04:37,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1247 GetRequests, 1118 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=7891, Invalid=9139, Unknown=0, NotChecked=0, Total=17030 [2020-07-20 02:04:37,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-07-20 02:04:37,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 881. [2020-07-20 02:04:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-07-20 02:04:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 881 transitions. [2020-07-20 02:04:37,374 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 881 transitions. Word has length 871 [2020-07-20 02:04:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:04:37,375 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 881 transitions. [2020-07-20 02:04:37,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 130 states. [2020-07-20 02:04:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 881 transitions. [2020-07-20 02:04:37,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2020-07-20 02:04:37,379 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:04:37,379 INFO L422 BasicCegarLoop]: trace histogram [125, 125, 125, 124, 124, 124, 124, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:04:37,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2020-07-20 02:04:37,580 INFO L427 AbstractCegarLoop]: === Iteration 125 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:04:37,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:04:37,581 INFO L82 PathProgramCache]: Analyzing trace with hash -962855563, now seen corresponding path program 124 times [2020-07-20 02:04:37,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:04:37,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286281406] [2020-07-20 02:04:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:04:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:04:53,446 INFO L134 CoverageAnalysis]: Checked inductivity of 53878 backedges. 248 proven. 23126 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2020-07-20 02:04:53,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286281406] [2020-07-20 02:04:53,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543545644] [2020-07-20 02:04:53,446 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5b9b83b6 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:04:53,654 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5b9b83b6 issued 4 check-sat command(s) [2020-07-20 02:04:53,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:04:53,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1510 conjuncts, 128 conjunts are in the unsatisfiable core [2020-07-20 02:04:53,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:04:53,686 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:04:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 53878 backedges. 248 proven. 23126 refuted. 0 times theorem prover too weak. 30504 trivial. 0 not checked. [2020-07-20 02:04:54,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:04:54,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129] total 131 [2020-07-20 02:04:54,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799944417] [2020-07-20 02:04:54,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 131 states [2020-07-20 02:04:54,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:04:54,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2020-07-20 02:04:54,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8011, Invalid=9019, Unknown=0, NotChecked=0, Total=17030 [2020-07-20 02:04:54,264 INFO L87 Difference]: Start difference. First operand 881 states and 881 transitions. Second operand 131 states. [2020-07-20 02:04:58,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 02:04:58,409 INFO L93 Difference]: Finished difference Result 891 states and 891 transitions. [2020-07-20 02:04:58,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2020-07-20 02:04:58,411 INFO L78 Accepts]: Start accepts. Automaton has 131 states. Word has length 878 [2020-07-20 02:04:58,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 02:04:58,413 INFO L225 Difference]: With dead ends: 891 [2020-07-20 02:04:58,413 INFO L226 Difference]: Without dead ends: 889 [2020-07-20 02:04:58,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1127 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=8017, Invalid=9275, Unknown=0, NotChecked=0, Total=17292 [2020-07-20 02:04:58,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2020-07-20 02:04:58,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 888. [2020-07-20 02:04:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 888 states. [2020-07-20 02:04:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 888 transitions. [2020-07-20 02:04:58,423 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 888 transitions. Word has length 878 [2020-07-20 02:04:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 02:04:58,423 INFO L479 AbstractCegarLoop]: Abstraction has 888 states and 888 transitions. [2020-07-20 02:04:58,423 INFO L480 AbstractCegarLoop]: Interpolant automaton has 131 states. [2020-07-20 02:04:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 888 transitions. [2020-07-20 02:04:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2020-07-20 02:04:58,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 02:04:58,429 INFO L422 BasicCegarLoop]: trace histogram [126, 126, 126, 125, 125, 125, 125, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 02:04:58,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 125 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2020-07-20 02:04:58,630 INFO L427 AbstractCegarLoop]: === Iteration 126 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 02:04:58,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 02:04:58,630 INFO L82 PathProgramCache]: Analyzing trace with hash 166271048, now seen corresponding path program 125 times [2020-07-20 02:04:58,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 02:04:58,631 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495967464] [2020-07-20 02:04:58,631 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9b68ee6 [2020-07-20 02:04:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 02:05:15,555 INFO L134 CoverageAnalysis]: Checked inductivity of 54750 backedges. 250 proven. 23500 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2020-07-20 02:05:15,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495967464] [2020-07-20 02:05:15,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491209060] [2020-07-20 02:05:15,555 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@770b8a95 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 02:05:15,761 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@770b8a95 issued 4 check-sat command(s) [2020-07-20 02:05:15,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 02:05:15,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 1522 conjuncts, 129 conjunts are in the unsatisfiable core [2020-07-20 02:05:15,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 02:05:15,793 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 02:05:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 54750 backedges. 250 proven. 23500 refuted. 0 times theorem prover too weak. 31000 trivial. 0 not checked. [2020-07-20 02:05:16,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 02:05:16,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130] total 132 [2020-07-20 02:05:16,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577136356] [2020-07-20 02:05:16,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 132 states [2020-07-20 02:05:16,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 02:05:16,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 132 interpolants. [2020-07-20 02:05:16,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8138, Invalid=9154, Unknown=0, NotChecked=0, Total=17292 [2020-07-20 02:05:16,381 INFO L87 Difference]: Start difference. First operand 888 states and 888 transitions. Second operand 132 states.