/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 DAGSIZE --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 04:02:24,845 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 04:02:24,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 04:02:24,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 04:02:24,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 04:02:24,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 04:02:24,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 04:02:24,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 04:02:24,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 04:02:24,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 04:02:24,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 04:02:24,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 04:02:24,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 04:02:24,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 04:02:24,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 04:02:24,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 04:02:24,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 04:02:24,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 04:02:24,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 04:02:24,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 04:02:24,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 04:02:24,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 04:02:24,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 04:02:24,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 04:02:24,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 04:02:24,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 04:02:24,910 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 04:02:24,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 04:02:24,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 04:02:24,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 04:02:24,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 04:02:24,938 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 04:02:24,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 04:02:24,939 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 04:02:24,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 04:02:24,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 04:02:24,939 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 04:02:24,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 04:02:24,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 04:02:24,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 04:02:24,941 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 04:02:24,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 04:02:24,942 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 04:02:24,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 04:02:24,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 04:02:24,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 04:02:24,942 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 04:02:24,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 04:02:24,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 04:02:24,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 04:02:24,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 04:02:24,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 04:02:24,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 04:02:24,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 04:02:24,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 04:02:24,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 04:02:24,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE 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 04:02:25,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 04:02:25,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 04:02:25,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 04:02:25,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 04:02:25,258 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 04:02:25,259 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-20 04:02:25,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0a8787f/c19cc95bf2ae4217ae21f81206024816/FLAG8403d50f7 [2020-07-20 04:02:25,814 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 04:02:25,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-20 04:02:25,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0a8787f/c19cc95bf2ae4217ae21f81206024816/FLAG8403d50f7 [2020-07-20 04:02:26,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0a8787f/c19cc95bf2ae4217ae21f81206024816 [2020-07-20 04:02:26,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 04:02:26,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 04:02:26,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 04:02:26,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 04:02:26,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 04:02:26,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4dbe87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26, skipping insertion in model container [2020-07-20 04:02:26,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 04:02:26,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 04:02:26,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:02:26,460 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 04:02:26,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 04:02:26,486 INFO L208 MainTranslator]: Completed translation [2020-07-20 04:02:26,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26 WrapperNode [2020-07-20 04:02:26,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 04:02:26,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 04:02:26,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 04:02:26,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 04:02:26,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (1/1) ... [2020-07-20 04:02:26,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 04:02:26,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 04:02:26,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 04:02:26,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 04:02:26,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (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 04:02:26,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 04:02:26,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 04:02:26,665 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 04:02:26,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 04:02:26,665 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 04:02:26,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 04:02:26,665 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 04:02:26,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 04:02:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 04:02:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 04:02:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 04:02:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 04:02:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 04:02:26,853 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 04:02:26,853 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 04:02:26,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:02:26 BoogieIcfgContainer [2020-07-20 04:02:26,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 04:02:26,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 04:02:26,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 04:02:26,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 04:02:26,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:02:26" (1/3) ... [2020-07-20 04:02:26,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6caaf53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:02:26, skipping insertion in model container [2020-07-20 04:02:26,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:02:26" (2/3) ... [2020-07-20 04:02:26,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6caaf53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:02:26, skipping insertion in model container [2020-07-20 04:02:26,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:02:26" (3/3) ... [2020-07-20 04:02:26,899 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2020-07-20 04:02:26,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 04:02:26,943 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 04:02:26,958 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 04:02:26,984 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 04:02:26,984 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 04:02:26,984 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 04:02:26,984 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 04:02:26,985 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 04:02:26,985 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 04:02:26,985 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 04:02:26,985 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 04:02:27,007 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-20 04:02:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-20 04:02:27,015 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:27,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:27,016 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:27,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:27,022 INFO L82 PathProgramCache]: Analyzing trace with hash 651998901, now seen corresponding path program 1 times [2020-07-20 04:02:27,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:27,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100522284] [2020-07-20 04:02:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:27,239 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 04:02:27,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100522284] [2020-07-20 04:02:27,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 04:02:27,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 04:02:27,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586869125] [2020-07-20 04:02:27,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 04:02:27,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:27,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 04:02:27,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 04:02:27,261 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2020-07-20 04:02:27,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:27,363 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2020-07-20 04:02:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 04:02:27,364 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-20 04:02:27,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:27,373 INFO L225 Difference]: With dead ends: 40 [2020-07-20 04:02:27,373 INFO L226 Difference]: Without dead ends: 21 [2020-07-20 04:02:27,377 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 04:02:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-20 04:02:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-07-20 04:02:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-20 04:02:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-07-20 04:02:27,428 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2020-07-20 04:02:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:27,428 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-07-20 04:02:27,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 04:02:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-07-20 04:02:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-20 04:02:27,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:27,430 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:27,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 04:02:27,431 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:27,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:27,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1822329080, now seen corresponding path program 1 times [2020-07-20 04:02:27,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:27,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630956185] [2020-07-20 04:02:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:27,514 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 04:02:27,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630956185] [2020-07-20 04:02:27,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151497979] [2020-07-20 04:02:27,515 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@10a34e92 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:27,561 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@10a34e92 issued 4 check-sat command(s) [2020-07-20 04:02:27,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:27,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 04:02:27,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:27,605 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:27,641 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 04:02:27,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:27,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-07-20 04:02:27,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135790487] [2020-07-20 04:02:27,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 04:02:27,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:27,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 04:02:27,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-20 04:02:27,646 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 8 states. [2020-07-20 04:02:27,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:27,717 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-07-20 04:02:27,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 04:02:27,718 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-07-20 04:02:27,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:27,720 INFO L225 Difference]: With dead ends: 30 [2020-07-20 04:02:27,720 INFO L226 Difference]: Without dead ends: 28 [2020-07-20 04:02:27,721 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 04:02:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-20 04:02:27,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-07-20 04:02:27,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-20 04:02:27,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-07-20 04:02:27,730 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2020-07-20 04:02:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:27,730 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-07-20 04:02:27,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 04:02:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-20 04:02:27,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-20 04:02:27,732 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:27,732 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:27,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-20 04:02:27,947 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:27,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:27,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1510359893, now seen corresponding path program 2 times [2020-07-20 04:02:27,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:27,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99579388] [2020-07-20 04:02:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-20 04:02:28,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99579388] [2020-07-20 04:02:28,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715793752] [2020-07-20 04:02:28,049 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@afac374 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 04:02:28,083 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@afac374 issued 4 check-sat command(s) [2020-07-20 04:02:28,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:28,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 04:02:28,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:28,103 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:28,135 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 04:02:28,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:28,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-07-20 04:02:28,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528446225] [2020-07-20 04:02:28,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-20 04:02:28,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:28,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-20 04:02:28,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-20 04:02:28,140 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 9 states. [2020-07-20 04:02:28,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:28,242 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-07-20 04:02:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 04:02:28,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-07-20 04:02:28,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:28,244 INFO L225 Difference]: With dead ends: 37 [2020-07-20 04:02:28,245 INFO L226 Difference]: Without dead ends: 35 [2020-07-20 04:02:28,246 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 04:02:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-20 04:02:28,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-07-20 04:02:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-20 04:02:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-07-20 04:02:28,264 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 24 [2020-07-20 04:02:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:28,264 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-07-20 04:02:28,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-20 04:02:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-07-20 04:02:28,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-20 04:02:28,267 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:28,267 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:28,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:28,483 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:28,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:28,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1096709736, now seen corresponding path program 3 times [2020-07-20 04:02:28,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:28,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990041374] [2020-07-20 04:02:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:28,610 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 04:02:28,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990041374] [2020-07-20 04:02:28,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355047687] [2020-07-20 04:02:28,612 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47cab500 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:28,664 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47cab500 issued 4 check-sat command(s) [2020-07-20 04:02:28,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:28,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 04:02:28,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:28,695 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:28,721 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 04:02:28,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:28,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-07-20 04:02:28,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440358212] [2020-07-20 04:02:28,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 04:02:28,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:28,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 04:02:28,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 04:02:28,724 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 10 states. [2020-07-20 04:02:28,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:28,802 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2020-07-20 04:02:28,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 04:02:28,803 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-07-20 04:02:28,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:28,805 INFO L225 Difference]: With dead ends: 44 [2020-07-20 04:02:28,805 INFO L226 Difference]: Without dead ends: 42 [2020-07-20 04:02:28,805 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 04:02:28,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-20 04:02:28,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-07-20 04:02:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-20 04:02:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-07-20 04:02:28,814 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 31 [2020-07-20 04:02:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:28,815 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-07-20 04:02:28,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 04:02:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-07-20 04:02:28,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-20 04:02:28,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:28,817 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:29,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:29,031 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:29,032 INFO L82 PathProgramCache]: Analyzing trace with hash 2024617973, now seen corresponding path program 4 times [2020-07-20 04:02:29,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:29,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950124553] [2020-07-20 04:02:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,135 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-20 04:02:29,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950124553] [2020-07-20 04:02:29,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801654461] [2020-07-20 04:02:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6eaa82c2 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 04:02:29,186 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6eaa82c2 issued 4 check-sat command(s) [2020-07-20 04:02:29,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:29,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 04:02:29,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:29,217 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:29,239 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 04:02:29,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:29,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-07-20 04:02:29,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843585026] [2020-07-20 04:02:29,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 04:02:29,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:29,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 04:02:29,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-20 04:02:29,241 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 11 states. [2020-07-20 04:02:29,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:29,339 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-07-20 04:02:29,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 04:02:29,339 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-07-20 04:02:29,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:29,341 INFO L225 Difference]: With dead ends: 51 [2020-07-20 04:02:29,341 INFO L226 Difference]: Without dead ends: 49 [2020-07-20 04:02:29,342 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 04:02:29,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-20 04:02:29,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2020-07-20 04:02:29,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-20 04:02:29,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2020-07-20 04:02:29,350 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 38 [2020-07-20 04:02:29,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:29,351 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2020-07-20 04:02:29,351 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 04:02:29,351 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2020-07-20 04:02:29,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 04:02:29,353 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:29,353 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:29,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:29,569 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:29,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:29,570 INFO L82 PathProgramCache]: Analyzing trace with hash 125373896, now seen corresponding path program 5 times [2020-07-20 04:02:29,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:29,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077784501] [2020-07-20 04:02:29,571 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:29,678 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 04:02:29,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077784501] [2020-07-20 04:02:29,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421033396] [2020-07-20 04:02:29,679 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5bbfc44a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:29,728 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5bbfc44a issued 4 check-sat command(s) [2020-07-20 04:02:29,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:29,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 04:02:29,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:29,744 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:29,777 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 04:02:29,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:29,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-07-20 04:02:29,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496071852] [2020-07-20 04:02:29,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 04:02:29,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:29,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 04:02:29,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-20 04:02:29,780 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 12 states. [2020-07-20 04:02:29,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:29,881 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2020-07-20 04:02:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 04:02:29,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-07-20 04:02:29,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:29,883 INFO L225 Difference]: With dead ends: 58 [2020-07-20 04:02:29,884 INFO L226 Difference]: Without dead ends: 56 [2020-07-20 04:02:29,884 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 04:02:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-20 04:02:29,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2020-07-20 04:02:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-20 04:02:29,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-07-20 04:02:29,894 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 45 [2020-07-20 04:02:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:29,894 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-07-20 04:02:29,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 04:02:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-07-20 04:02:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 04:02:29,896 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:29,897 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:30,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-20 04:02:30,100 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:30,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:30,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1195086997, now seen corresponding path program 6 times [2020-07-20 04:02:30,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:30,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307804689] [2020-07-20 04:02:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-20 04:02:30,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307804689] [2020-07-20 04:02:30,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697496945] [2020-07-20 04:02:30,295 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@24ba758 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 04:02:30,337 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@24ba758 issued 4 check-sat command(s) [2020-07-20 04:02:30,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:30,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 04:02:30,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:30,353 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:30,380 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 04:02:30,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:30,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-07-20 04:02:30,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157943565] [2020-07-20 04:02:30,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-20 04:02:30,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:30,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-20 04:02:30,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-20 04:02:30,383 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 13 states. [2020-07-20 04:02:30,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:30,470 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-07-20 04:02:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-20 04:02:30,471 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-07-20 04:02:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:30,472 INFO L225 Difference]: With dead ends: 65 [2020-07-20 04:02:30,472 INFO L226 Difference]: Without dead ends: 63 [2020-07-20 04:02:30,473 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 04:02:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-20 04:02:30,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2020-07-20 04:02:30,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-20 04:02:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2020-07-20 04:02:30,482 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 52 [2020-07-20 04:02:30,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:30,482 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2020-07-20 04:02:30,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-20 04:02:30,482 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2020-07-20 04:02:30,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 04:02:30,484 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:30,484 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:30,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:30,700 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:30,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:30,701 INFO L82 PathProgramCache]: Analyzing trace with hash 906444072, now seen corresponding path program 7 times [2020-07-20 04:02:30,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:30,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17027588] [2020-07-20 04:02:30,702 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:30,848 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 04:02:30,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17027588] [2020-07-20 04:02:30,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891098513] [2020-07-20 04:02:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@41f2c0d1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:30,896 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@41f2c0d1 issued 4 check-sat command(s) [2020-07-20 04:02:30,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:30,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 04:02:30,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:30,913 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:30,937 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 04:02:30,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:30,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2020-07-20 04:02:30,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632549276] [2020-07-20 04:02:30,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-20 04:02:30,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:30,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-20 04:02:30,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-07-20 04:02:30,940 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 14 states. [2020-07-20 04:02:31,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:31,053 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-07-20 04:02:31,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-20 04:02:31,054 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-07-20 04:02:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:31,055 INFO L225 Difference]: With dead ends: 72 [2020-07-20 04:02:31,055 INFO L226 Difference]: Without dead ends: 70 [2020-07-20 04:02:31,056 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 04:02:31,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-20 04:02:31,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-07-20 04:02:31,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-20 04:02:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-07-20 04:02:31,065 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 59 [2020-07-20 04:02:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:31,066 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-07-20 04:02:31,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-20 04:02:31,066 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-07-20 04:02:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-20 04:02:31,067 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:31,067 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:31,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:31,281 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:31,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:31,282 INFO L82 PathProgramCache]: Analyzing trace with hash -2003085003, now seen corresponding path program 8 times [2020-07-20 04:02:31,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:31,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201147274] [2020-07-20 04:02:31,283 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:31,427 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 04:02:31,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201147274] [2020-07-20 04:02:31,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160109593] [2020-07-20 04:02:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1675d683 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 04:02:31,481 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1675d683 issued 4 check-sat command(s) [2020-07-20 04:02:31,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:31,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 04:02:31,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:31,502 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:31,532 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 04:02:31,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:31,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2020-07-20 04:02:31,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8661885] [2020-07-20 04:02:31,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-20 04:02:31,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:31,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-20 04:02:31,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-07-20 04:02:31,534 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 15 states. [2020-07-20 04:02:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:31,695 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2020-07-20 04:02:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-20 04:02:31,696 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2020-07-20 04:02:31,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:31,697 INFO L225 Difference]: With dead ends: 79 [2020-07-20 04:02:31,697 INFO L226 Difference]: Without dead ends: 77 [2020-07-20 04:02:31,698 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 04:02:31,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-07-20 04:02:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-07-20 04:02:31,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-20 04:02:31,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2020-07-20 04:02:31,716 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 66 [2020-07-20 04:02:31,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:31,716 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2020-07-20 04:02:31,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-20 04:02:31,717 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2020-07-20 04:02:31,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-20 04:02:31,720 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:31,720 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:31,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-07-20 04:02:31,929 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:31,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:31,930 INFO L82 PathProgramCache]: Analyzing trace with hash -824245112, now seen corresponding path program 9 times [2020-07-20 04:02:31,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:31,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993191122] [2020-07-20 04:02:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,089 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 04:02:32,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993191122] [2020-07-20 04:02:32,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188018847] [2020-07-20 04:02:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@b951315 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:32,148 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@b951315 issued 4 check-sat command(s) [2020-07-20 04:02:32,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:32,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-20 04:02:32,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:32,193 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:32,229 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 04:02:32,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:32,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 16 [2020-07-20 04:02:32,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226621446] [2020-07-20 04:02:32,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 04:02:32,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:32,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 04:02:32,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-07-20 04:02:32,233 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 16 states. [2020-07-20 04:02:32,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:32,370 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2020-07-20 04:02:32,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 04:02:32,370 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-07-20 04:02:32,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:32,372 INFO L225 Difference]: With dead ends: 86 [2020-07-20 04:02:32,372 INFO L226 Difference]: Without dead ends: 84 [2020-07-20 04:02:32,375 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 04:02:32,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-20 04:02:32,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2020-07-20 04:02:32,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-20 04:02:32,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2020-07-20 04:02:32,388 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 73 [2020-07-20 04:02:32,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:32,393 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2020-07-20 04:02:32,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 04:02:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2020-07-20 04:02:32,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-07-20 04:02:32,399 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:32,399 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:32,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:32,615 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:32,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1640593963, now seen corresponding path program 10 times [2020-07-20 04:02:32,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:32,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083389919] [2020-07-20 04:02:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:32,811 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-20 04:02:32,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083389919] [2020-07-20 04:02:32,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906937568] [2020-07-20 04:02:32,812 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7e0afeaf 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 04:02:32,862 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7e0afeaf issued 4 check-sat command(s) [2020-07-20 04:02:32,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:32,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 04:02:32,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:32,881 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:32,907 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 04:02:32,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:32,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2020-07-20 04:02:32,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166574683] [2020-07-20 04:02:32,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-20 04:02:32,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:32,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-20 04:02:32,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-07-20 04:02:32,910 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 17 states. [2020-07-20 04:02:33,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:33,032 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2020-07-20 04:02:33,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 04:02:33,033 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 80 [2020-07-20 04:02:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:33,035 INFO L225 Difference]: With dead ends: 93 [2020-07-20 04:02:33,035 INFO L226 Difference]: Without dead ends: 91 [2020-07-20 04:02:33,036 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 04:02:33,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-20 04:02:33,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2020-07-20 04:02:33,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-20 04:02:33,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2020-07-20 04:02:33,045 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 80 [2020-07-20 04:02:33,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:33,045 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2020-07-20 04:02:33,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-20 04:02:33,046 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2020-07-20 04:02:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-20 04:02:33,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:33,047 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:33,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:33,262 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:33,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:33,263 INFO L82 PathProgramCache]: Analyzing trace with hash -447323160, now seen corresponding path program 11 times [2020-07-20 04:02:33,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:33,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152716149] [2020-07-20 04:02:33,264 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:33,463 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 04:02:33,463 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152716149] [2020-07-20 04:02:33,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541948796] [2020-07-20 04:02:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51601417 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:33,522 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51601417 issued 4 check-sat command(s) [2020-07-20 04:02:33,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:33,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 04:02:33,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:33,543 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:33,585 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 04:02:33,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:33,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 18 [2020-07-20 04:02:33,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862364266] [2020-07-20 04:02:33,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-20 04:02:33,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:33,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-20 04:02:33,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-07-20 04:02:33,588 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 18 states. [2020-07-20 04:02:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:33,771 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2020-07-20 04:02:33,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 04:02:33,771 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2020-07-20 04:02:33,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:33,773 INFO L225 Difference]: With dead ends: 100 [2020-07-20 04:02:33,773 INFO L226 Difference]: Without dead ends: 98 [2020-07-20 04:02:33,774 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 04:02:33,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-20 04:02:33,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-07-20 04:02:33,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-20 04:02:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2020-07-20 04:02:33,792 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 87 [2020-07-20 04:02:33,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:33,796 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2020-07-20 04:02:33,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-20 04:02:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2020-07-20 04:02:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-20 04:02:33,803 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:33,803 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:34,017 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-20 04:02:34,018 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:34,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:34,019 INFO L82 PathProgramCache]: Analyzing trace with hash 670505589, now seen corresponding path program 12 times [2020-07-20 04:02:34,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:34,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717332498] [2020-07-20 04:02:34,020 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-07-20 04:02:34,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717332498] [2020-07-20 04:02:34,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563572014] [2020-07-20 04:02:34,215 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f871845 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 04:02:34,266 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f871845 issued 4 check-sat command(s) [2020-07-20 04:02:34,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:34,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-20 04:02:34,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:34,285 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:34,318 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 04:02:34,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:34,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2020-07-20 04:02:34,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451006650] [2020-07-20 04:02:34,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-20 04:02:34,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:34,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-20 04:02:34,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-07-20 04:02:34,320 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 19 states. [2020-07-20 04:02:34,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:34,444 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2020-07-20 04:02:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 04:02:34,444 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 94 [2020-07-20 04:02:34,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:34,445 INFO L225 Difference]: With dead ends: 107 [2020-07-20 04:02:34,445 INFO L226 Difference]: Without dead ends: 105 [2020-07-20 04:02:34,446 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 04:02:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-07-20 04:02:34,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2020-07-20 04:02:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-20 04:02:34,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2020-07-20 04:02:34,457 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 94 [2020-07-20 04:02:34,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:34,458 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2020-07-20 04:02:34,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-20 04:02:34,458 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2020-07-20 04:02:34,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-20 04:02:34,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:34,460 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:34,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-20 04:02:34,664 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:34,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:34,665 INFO L82 PathProgramCache]: Analyzing trace with hash -29140152, now seen corresponding path program 13 times [2020-07-20 04:02:34,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:34,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207602252] [2020-07-20 04:02:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:34,891 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 04:02:34,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207602252] [2020-07-20 04:02:34,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169484582] [2020-07-20 04:02:34,905 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735fe9fb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:34,950 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@735fe9fb issued 4 check-sat command(s) [2020-07-20 04:02:34,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:34,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-20 04:02:34,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:34,971 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:35,008 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 04:02:35,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:35,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 20 [2020-07-20 04:02:35,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714293612] [2020-07-20 04:02:35,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-20 04:02:35,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:35,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-20 04:02:35,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-07-20 04:02:35,011 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 20 states. [2020-07-20 04:02:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:35,188 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2020-07-20 04:02:35,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-20 04:02:35,188 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 101 [2020-07-20 04:02:35,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:35,190 INFO L225 Difference]: With dead ends: 114 [2020-07-20 04:02:35,190 INFO L226 Difference]: Without dead ends: 112 [2020-07-20 04:02:35,191 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 04:02:35,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-20 04:02:35,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-07-20 04:02:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-20 04:02:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2020-07-20 04:02:35,198 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 101 [2020-07-20 04:02:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:35,199 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2020-07-20 04:02:35,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-20 04:02:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2020-07-20 04:02:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-20 04:02:35,200 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:35,200 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:35,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-20 04:02:35,414 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:35,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:35,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1538844907, now seen corresponding path program 14 times [2020-07-20 04:02:35,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:35,415 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81638552] [2020-07-20 04:02:35,416 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-07-20 04:02:35,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81638552] [2020-07-20 04:02:35,641 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982130052] [2020-07-20 04:02:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@69bc7e96 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 04:02:35,690 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@69bc7e96 issued 4 check-sat command(s) [2020-07-20 04:02:35,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:35,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-20 04:02:35,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:35,710 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:35,759 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 04:02:35,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:35,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2020-07-20 04:02:35,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580627449] [2020-07-20 04:02:35,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-20 04:02:35,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:35,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-20 04:02:35,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-07-20 04:02:35,761 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 21 states. [2020-07-20 04:02:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:35,978 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2020-07-20 04:02:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-20 04:02:35,979 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 108 [2020-07-20 04:02:35,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:35,980 INFO L225 Difference]: With dead ends: 121 [2020-07-20 04:02:35,980 INFO L226 Difference]: Without dead ends: 119 [2020-07-20 04:02:35,981 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 04:02:35,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-20 04:02:35,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2020-07-20 04:02:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-20 04:02:35,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2020-07-20 04:02:35,988 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 108 [2020-07-20 04:02:35,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:35,989 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2020-07-20 04:02:35,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-20 04:02:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2020-07-20 04:02:35,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-20 04:02:35,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:35,991 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:36,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:36,205 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:36,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:36,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1878780584, now seen corresponding path program 15 times [2020-07-20 04:02:36,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:36,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212002536] [2020-07-20 04:02:36,206 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:36,465 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 04:02:36,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212002536] [2020-07-20 04:02:36,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21106909] [2020-07-20 04:02:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@31b3d8fb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:36,528 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@31b3d8fb issued 4 check-sat command(s) [2020-07-20 04:02:36,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:36,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-20 04:02:36,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:36,549 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:36,589 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 04:02:36,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:36,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 22 [2020-07-20 04:02:36,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214825805] [2020-07-20 04:02:36,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-20 04:02:36,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:36,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-20 04:02:36,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2020-07-20 04:02:36,592 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 22 states. [2020-07-20 04:02:36,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:36,756 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2020-07-20 04:02:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-20 04:02:36,757 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-07-20 04:02:36,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:36,758 INFO L225 Difference]: With dead ends: 128 [2020-07-20 04:02:36,758 INFO L226 Difference]: Without dead ends: 126 [2020-07-20 04:02:36,761 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 04:02:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-20 04:02:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2020-07-20 04:02:36,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-20 04:02:36,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2020-07-20 04:02:36,772 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 115 [2020-07-20 04:02:36,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:36,773 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2020-07-20 04:02:36,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-20 04:02:36,773 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2020-07-20 04:02:36,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-20 04:02:36,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:36,775 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:36,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-07-20 04:02:36,988 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:36,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:36,989 INFO L82 PathProgramCache]: Analyzing trace with hash 269515701, now seen corresponding path program 16 times [2020-07-20 04:02:36,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:36,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757380525] [2020-07-20 04:02:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:37,249 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 04:02:37,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757380525] [2020-07-20 04:02:37,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387361738] [2020-07-20 04:02:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76f6bcd0 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 04:02:37,300 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76f6bcd0 issued 4 check-sat command(s) [2020-07-20 04:02:37,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:37,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-20 04:02:37,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:37,318 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:37,365 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 04:02:37,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:37,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2020-07-20 04:02:37,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019060952] [2020-07-20 04:02:37,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-20 04:02:37,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:37,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-20 04:02:37,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-07-20 04:02:37,368 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 23 states. [2020-07-20 04:02:37,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:37,521 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2020-07-20 04:02:37,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-20 04:02:37,521 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 122 [2020-07-20 04:02:37,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:37,523 INFO L225 Difference]: With dead ends: 135 [2020-07-20 04:02:37,523 INFO L226 Difference]: Without dead ends: 133 [2020-07-20 04:02:37,524 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 04:02:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-20 04:02:37,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2020-07-20 04:02:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 04:02:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2020-07-20 04:02:37,532 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 122 [2020-07-20 04:02:37,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:37,535 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2020-07-20 04:02:37,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-20 04:02:37,535 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2020-07-20 04:02:37,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 04:02:37,536 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:37,537 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:37,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-07-20 04:02:37,752 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:37,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1034546680, now seen corresponding path program 17 times [2020-07-20 04:02:37,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:37,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324152738] [2020-07-20 04:02:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:38,119 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 04:02:38,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324152738] [2020-07-20 04:02:38,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626160719] [2020-07-20 04:02:38,120 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@92e59f1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:38,243 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@92e59f1 issued 4 check-sat command(s) [2020-07-20 04:02:38,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:38,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-20 04:02:38,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:38,280 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:38,346 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 04:02:38,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:38,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 24 [2020-07-20 04:02:38,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101599673] [2020-07-20 04:02:38,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-20 04:02:38,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:38,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-20 04:02:38,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2020-07-20 04:02:38,351 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 24 states. [2020-07-20 04:02:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:38,637 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2020-07-20 04:02:38,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-20 04:02:38,638 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 129 [2020-07-20 04:02:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:38,640 INFO L225 Difference]: With dead ends: 142 [2020-07-20 04:02:38,640 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 04:02:38,642 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 04:02:38,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 04:02:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2020-07-20 04:02:38,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-20 04:02:38,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2020-07-20 04:02:38,652 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 129 [2020-07-20 04:02:38,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:38,652 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2020-07-20 04:02:38,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-20 04:02:38,652 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2020-07-20 04:02:38,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-20 04:02:38,654 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:38,654 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:38,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-07-20 04:02:38,870 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:38,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:38,871 INFO L82 PathProgramCache]: Analyzing trace with hash -2034415531, now seen corresponding path program 18 times [2020-07-20 04:02:38,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:38,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254772985] [2020-07-20 04:02:38,871 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:39,333 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 04:02:39,333 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254772985] [2020-07-20 04:02:39,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744644047] [2020-07-20 04:02:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@60929459 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 04:02:39,398 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@60929459 issued 4 check-sat command(s) [2020-07-20 04:02:39,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:39,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-20 04:02:39,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:39,422 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:39,489 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 04:02:39,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:39,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2020-07-20 04:02:39,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891249248] [2020-07-20 04:02:39,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-20 04:02:39,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:39,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-20 04:02:39,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=380, Unknown=0, NotChecked=0, Total=600 [2020-07-20 04:02:39,493 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 25 states. [2020-07-20 04:02:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:39,700 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2020-07-20 04:02:39,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-20 04:02:39,704 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 136 [2020-07-20 04:02:39,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:39,705 INFO L225 Difference]: With dead ends: 149 [2020-07-20 04:02:39,705 INFO L226 Difference]: Without dead ends: 147 [2020-07-20 04:02:39,707 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 04:02:39,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-20 04:02:39,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-07-20 04:02:39,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-20 04:02:39,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2020-07-20 04:02:39,718 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 136 [2020-07-20 04:02:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:39,719 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2020-07-20 04:02:39,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-20 04:02:39,719 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2020-07-20 04:02:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 04:02:39,722 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:39,722 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:39,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:39,936 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:39,936 INFO L82 PathProgramCache]: Analyzing trace with hash 245879144, now seen corresponding path program 19 times [2020-07-20 04:02:39,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:39,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289184766] [2020-07-20 04:02:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:40,301 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 04:02:40,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289184766] [2020-07-20 04:02:40,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118201989] [2020-07-20 04:02:40,302 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@310b36af No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:40,380 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@310b36af issued 4 check-sat command(s) [2020-07-20 04:02:40,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:40,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 04:02:40,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:40,403 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:40,466 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 04:02:40,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:40,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 26 [2020-07-20 04:02:40,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229833331] [2020-07-20 04:02:40,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-20 04:02:40,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:40,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-20 04:02:40,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=409, Unknown=0, NotChecked=0, Total=650 [2020-07-20 04:02:40,469 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 26 states. [2020-07-20 04:02:40,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:40,671 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2020-07-20 04:02:40,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-20 04:02:40,673 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 143 [2020-07-20 04:02:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:40,675 INFO L225 Difference]: With dead ends: 156 [2020-07-20 04:02:40,675 INFO L226 Difference]: Without dead ends: 154 [2020-07-20 04:02:40,676 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 04:02:40,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-20 04:02:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2020-07-20 04:02:40,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-20 04:02:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2020-07-20 04:02:40,704 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 143 [2020-07-20 04:02:40,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:40,704 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2020-07-20 04:02:40,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-20 04:02:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2020-07-20 04:02:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 04:02:40,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:40,708 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:40,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:40,922 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:40,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash -499680011, now seen corresponding path program 20 times [2020-07-20 04:02:40,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:40,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348237385] [2020-07-20 04:02:40,923 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:41,328 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 04:02:41,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348237385] [2020-07-20 04:02:41,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692392695] [2020-07-20 04:02:41,329 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@74e3e67a 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 04:02:41,414 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@74e3e67a issued 4 check-sat command(s) [2020-07-20 04:02:41,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:41,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjunts are in the unsatisfiable core [2020-07-20 04:02:41,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:41,444 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:41,499 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 04:02:41,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:41,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2020-07-20 04:02:41,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235001929] [2020-07-20 04:02:41,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-07-20 04:02:41,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:41,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-07-20 04:02:41,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=439, Unknown=0, NotChecked=0, Total=702 [2020-07-20 04:02:41,501 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 27 states. [2020-07-20 04:02:41,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:41,773 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2020-07-20 04:02:41,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-20 04:02:41,774 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 150 [2020-07-20 04:02:41,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:41,775 INFO L225 Difference]: With dead ends: 163 [2020-07-20 04:02:41,776 INFO L226 Difference]: Without dead ends: 161 [2020-07-20 04:02:41,777 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 04:02:41,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-20 04:02:41,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2020-07-20 04:02:41,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-20 04:02:41,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2020-07-20 04:02:41,787 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 150 [2020-07-20 04:02:41,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:41,788 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2020-07-20 04:02:41,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-07-20 04:02:41,789 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2020-07-20 04:02:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-20 04:02:41,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:41,791 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:42,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-07-20 04:02:42,005 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:42,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:42,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1606887624, now seen corresponding path program 21 times [2020-07-20 04:02:42,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:42,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393534490] [2020-07-20 04:02:42,007 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:42,457 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 04:02:42,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393534490] [2020-07-20 04:02:42,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166737101] [2020-07-20 04:02:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@15b1cee6 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:42,541 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@15b1cee6 issued 4 check-sat command(s) [2020-07-20 04:02:42,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:42,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-20 04:02:42,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:42,564 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:42,618 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 04:02:42,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:42,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 28 [2020-07-20 04:02:42,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860550751] [2020-07-20 04:02:42,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-07-20 04:02:42,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:42,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-07-20 04:02:42,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=470, Unknown=0, NotChecked=0, Total=756 [2020-07-20 04:02:42,621 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 28 states. [2020-07-20 04:02:42,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:42,882 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2020-07-20 04:02:42,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-20 04:02:42,885 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 157 [2020-07-20 04:02:42,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:42,886 INFO L225 Difference]: With dead ends: 170 [2020-07-20 04:02:42,886 INFO L226 Difference]: Without dead ends: 168 [2020-07-20 04:02:42,887 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 04:02:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-20 04:02:42,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-07-20 04:02:42,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-20 04:02:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2020-07-20 04:02:42,895 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 157 [2020-07-20 04:02:42,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:42,895 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2020-07-20 04:02:42,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-07-20 04:02:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2020-07-20 04:02:42,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 04:02:42,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:42,898 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:43,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-07-20 04:02:43,111 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:43,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:43,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1525225877, now seen corresponding path program 22 times [2020-07-20 04:02:43,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:43,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474080710] [2020-07-20 04:02:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:43,666 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 04:02:43,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474080710] [2020-07-20 04:02:43,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236485560] [2020-07-20 04:02:43,667 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@64a4e294 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 04:02:43,730 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@64a4e294 issued 4 check-sat command(s) [2020-07-20 04:02:43,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:43,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-20 04:02:43,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:43,759 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:43,811 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 04:02:43,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:43,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2020-07-20 04:02:43,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056312680] [2020-07-20 04:02:43,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-07-20 04:02:43,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:43,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-07-20 04:02:43,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=502, Unknown=0, NotChecked=0, Total=812 [2020-07-20 04:02:43,815 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 29 states. [2020-07-20 04:02:44,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:44,128 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2020-07-20 04:02:44,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-20 04:02:44,128 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 164 [2020-07-20 04:02:44,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:44,130 INFO L225 Difference]: With dead ends: 177 [2020-07-20 04:02:44,131 INFO L226 Difference]: Without dead ends: 175 [2020-07-20 04:02:44,132 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 04:02:44,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-07-20 04:02:44,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2020-07-20 04:02:44,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-20 04:02:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2020-07-20 04:02:44,146 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 164 [2020-07-20 04:02:44,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:44,146 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2020-07-20 04:02:44,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-07-20 04:02:44,147 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2020-07-20 04:02:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-20 04:02:44,150 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:44,150 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:44,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:44,364 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:44,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:44,364 INFO L82 PathProgramCache]: Analyzing trace with hash 302651432, now seen corresponding path program 23 times [2020-07-20 04:02:44,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:44,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265080745] [2020-07-20 04:02:44,364 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:44,857 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 04:02:44,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265080745] [2020-07-20 04:02:44,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250786810] [2020-07-20 04:02:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d0302da No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:44,949 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d0302da issued 4 check-sat command(s) [2020-07-20 04:02:44,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:44,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-20 04:02:44,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:44,995 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:45,083 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 04:02:45,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:45,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 30 [2020-07-20 04:02:45,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998695474] [2020-07-20 04:02:45,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-07-20 04:02:45,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:45,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-07-20 04:02:45,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=535, Unknown=0, NotChecked=0, Total=870 [2020-07-20 04:02:45,086 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 30 states. [2020-07-20 04:02:45,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:45,439 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2020-07-20 04:02:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-20 04:02:45,439 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 171 [2020-07-20 04:02:45,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:45,441 INFO L225 Difference]: With dead ends: 184 [2020-07-20 04:02:45,441 INFO L226 Difference]: Without dead ends: 182 [2020-07-20 04:02:45,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=589, Unknown=0, NotChecked=0, Total=930 [2020-07-20 04:02:45,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-20 04:02:45,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2020-07-20 04:02:45,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-07-20 04:02:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2020-07-20 04:02:45,449 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 171 [2020-07-20 04:02:45,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:45,449 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2020-07-20 04:02:45,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-07-20 04:02:45,450 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2020-07-20 04:02:45,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-20 04:02:45,452 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:45,452 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:45,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-07-20 04:02:45,666 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:45,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:45,666 INFO L82 PathProgramCache]: Analyzing trace with hash 666639925, now seen corresponding path program 24 times [2020-07-20 04:02:45,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:45,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259081265] [2020-07-20 04:02:45,667 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:46,153 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 04:02:46,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259081265] [2020-07-20 04:02:46,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703695740] [2020-07-20 04:02:46,154 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1d579051 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 04:02:46,219 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1d579051 issued 4 check-sat command(s) [2020-07-20 04:02:46,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:46,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 28 conjunts are in the unsatisfiable core [2020-07-20 04:02:46,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:46,253 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:46,311 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 04:02:46,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:46,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2020-07-20 04:02:46,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999879726] [2020-07-20 04:02:46,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-20 04:02:46,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:46,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-20 04:02:46,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=569, Unknown=0, NotChecked=0, Total=930 [2020-07-20 04:02:46,314 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 31 states. [2020-07-20 04:02:46,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:46,603 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2020-07-20 04:02:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-20 04:02:46,604 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 178 [2020-07-20 04:02:46,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:46,605 INFO L225 Difference]: With dead ends: 191 [2020-07-20 04:02:46,605 INFO L226 Difference]: Without dead ends: 189 [2020-07-20 04:02:46,606 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 04:02:46,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-07-20 04:02:46,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2020-07-20 04:02:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-20 04:02:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2020-07-20 04:02:46,617 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 178 [2020-07-20 04:02:46,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:46,617 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2020-07-20 04:02:46,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-20 04:02:46,618 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2020-07-20 04:02:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 04:02:46,619 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:46,620 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:46,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:46,832 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:46,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:46,833 INFO L82 PathProgramCache]: Analyzing trace with hash 860266376, now seen corresponding path program 25 times [2020-07-20 04:02:46,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:46,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358152634] [2020-07-20 04:02:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:47,476 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 04:02:47,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358152634] [2020-07-20 04:02:47,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257160390] [2020-07-20 04:02:47,477 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45cd6e15 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:47,539 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45cd6e15 issued 4 check-sat command(s) [2020-07-20 04:02:47,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:47,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-20 04:02:47,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:47,562 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:47,613 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 04:02:47,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:47,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 32 [2020-07-20 04:02:47,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241090662] [2020-07-20 04:02:47,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-07-20 04:02:47,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:47,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-07-20 04:02:47,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=604, Unknown=0, NotChecked=0, Total=992 [2020-07-20 04:02:47,616 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 32 states. [2020-07-20 04:02:47,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:47,873 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2020-07-20 04:02:47,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-20 04:02:47,874 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 185 [2020-07-20 04:02:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:47,876 INFO L225 Difference]: With dead ends: 198 [2020-07-20 04:02:47,876 INFO L226 Difference]: Without dead ends: 196 [2020-07-20 04:02:47,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=394, Invalid=662, Unknown=0, NotChecked=0, Total=1056 [2020-07-20 04:02:47,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-20 04:02:47,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2020-07-20 04:02:47,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-20 04:02:47,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2020-07-20 04:02:47,887 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 185 [2020-07-20 04:02:47,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:47,888 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 195 transitions. [2020-07-20 04:02:47,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-07-20 04:02:47,888 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 195 transitions. [2020-07-20 04:02:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-20 04:02:47,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:47,890 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:48,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-07-20 04:02:48,104 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:48,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:48,104 INFO L82 PathProgramCache]: Analyzing trace with hash 505055957, now seen corresponding path program 26 times [2020-07-20 04:02:48,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:48,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112385690] [2020-07-20 04:02:48,105 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:48,703 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 04:02:48,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112385690] [2020-07-20 04:02:48,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712054763] [2020-07-20 04:02:48,704 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e092f7f 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 04:02:48,809 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e092f7f issued 4 check-sat command(s) [2020-07-20 04:02:48,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:48,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 30 conjunts are in the unsatisfiable core [2020-07-20 04:02:48,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:48,837 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:48,906 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 04:02:48,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:48,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2020-07-20 04:02:48,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984177949] [2020-07-20 04:02:48,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-20 04:02:48,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:48,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-20 04:02:48,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=640, Unknown=0, NotChecked=0, Total=1056 [2020-07-20 04:02:48,908 INFO L87 Difference]: Start difference. First operand 195 states and 195 transitions. Second operand 33 states. [2020-07-20 04:02:49,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:49,217 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2020-07-20 04:02:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-20 04:02:49,218 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 192 [2020-07-20 04:02:49,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:49,219 INFO L225 Difference]: With dead ends: 205 [2020-07-20 04:02:49,220 INFO L226 Difference]: Without dead ends: 203 [2020-07-20 04:02:49,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=422, Invalid=700, Unknown=0, NotChecked=0, Total=1122 [2020-07-20 04:02:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-20 04:02:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2020-07-20 04:02:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-20 04:02:49,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2020-07-20 04:02:49,228 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 192 [2020-07-20 04:02:49,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:49,228 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2020-07-20 04:02:49,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-20 04:02:49,229 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2020-07-20 04:02:49,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-20 04:02:49,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:49,230 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:49,440 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-07-20 04:02:49,441 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:49,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:49,442 INFO L82 PathProgramCache]: Analyzing trace with hash -489505048, now seen corresponding path program 27 times [2020-07-20 04:02:49,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:49,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829257261] [2020-07-20 04:02:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:50,049 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 04:02:50,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829257261] [2020-07-20 04:02:50,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923054646] [2020-07-20 04:02:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@68ff2300 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:50,122 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@68ff2300 issued 4 check-sat command(s) [2020-07-20 04:02:50,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:50,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-20 04:02:50,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:50,147 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:50,223 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 04:02:50,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:50,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 34 [2020-07-20 04:02:50,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881559096] [2020-07-20 04:02:50,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-07-20 04:02:50,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:50,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-07-20 04:02:50,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=677, Unknown=0, NotChecked=0, Total=1122 [2020-07-20 04:02:50,225 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand 34 states. [2020-07-20 04:02:50,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:50,545 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2020-07-20 04:02:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-20 04:02:50,547 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 199 [2020-07-20 04:02:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:50,549 INFO L225 Difference]: With dead ends: 212 [2020-07-20 04:02:50,549 INFO L226 Difference]: Without dead ends: 210 [2020-07-20 04:02:50,551 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 04:02:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-07-20 04:02:50,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2020-07-20 04:02:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-07-20 04:02:50,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2020-07-20 04:02:50,559 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 199 [2020-07-20 04:02:50,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:50,559 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2020-07-20 04:02:50,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-07-20 04:02:50,559 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2020-07-20 04:02:50,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-20 04:02:50,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:50,561 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:50,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-07-20 04:02:50,775 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:50,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:50,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1374576501, now seen corresponding path program 28 times [2020-07-20 04:02:50,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:50,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598394722] [2020-07-20 04:02:50,776 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:51,346 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 04:02:51,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598394722] [2020-07-20 04:02:51,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001168069] [2020-07-20 04:02:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@215765f6 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 04:02:51,440 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@215765f6 issued 4 check-sat command(s) [2020-07-20 04:02:51,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:51,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 32 conjunts are in the unsatisfiable core [2020-07-20 04:02:51,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:51,462 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:51,523 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 04:02:51,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:51,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2020-07-20 04:02:51,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705485778] [2020-07-20 04:02:51,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-07-20 04:02:51,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:51,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-07-20 04:02:51,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=715, Unknown=0, NotChecked=0, Total=1190 [2020-07-20 04:02:51,525 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand 35 states. [2020-07-20 04:02:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:51,864 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2020-07-20 04:02:51,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-20 04:02:51,864 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 206 [2020-07-20 04:02:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:51,866 INFO L225 Difference]: With dead ends: 219 [2020-07-20 04:02:51,866 INFO L226 Difference]: Without dead ends: 217 [2020-07-20 04:02:51,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=779, Unknown=0, NotChecked=0, Total=1260 [2020-07-20 04:02:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-20 04:02:51,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2020-07-20 04:02:51,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-20 04:02:51,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2020-07-20 04:02:51,876 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 206 [2020-07-20 04:02:51,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:51,876 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2020-07-20 04:02:51,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-07-20 04:02:51,877 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2020-07-20 04:02:51,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-20 04:02:51,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:51,879 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:52,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-07-20 04:02:52,093 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:52,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1316719032, now seen corresponding path program 29 times [2020-07-20 04:02:52,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:52,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388747200] [2020-07-20 04:02:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:52,759 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 04:02:52,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388747200] [2020-07-20 04:02:52,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236445533] [2020-07-20 04:02:52,760 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2378878e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:52,822 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2378878e issued 4 check-sat command(s) [2020-07-20 04:02:52,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:52,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-20 04:02:52,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:52,848 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:52,914 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 04:02:52,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:52,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 36 [2020-07-20 04:02:52,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831230876] [2020-07-20 04:02:52,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-07-20 04:02:52,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:52,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-07-20 04:02:52,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=506, Invalid=754, Unknown=0, NotChecked=0, Total=1260 [2020-07-20 04:02:52,917 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand 36 states. [2020-07-20 04:02:53,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:53,273 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2020-07-20 04:02:53,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-20 04:02:53,274 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 213 [2020-07-20 04:02:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:53,277 INFO L225 Difference]: With dead ends: 226 [2020-07-20 04:02:53,277 INFO L226 Difference]: Without dead ends: 224 [2020-07-20 04:02:53,278 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 04:02:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-20 04:02:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 223. [2020-07-20 04:02:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-07-20 04:02:53,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2020-07-20 04:02:53,287 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 213 [2020-07-20 04:02:53,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:53,287 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2020-07-20 04:02:53,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-07-20 04:02:53,287 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2020-07-20 04:02:53,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-20 04:02:53,289 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:53,289 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:53,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:53,504 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:53,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1247699947, now seen corresponding path program 30 times [2020-07-20 04:02:53,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:53,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681930802] [2020-07-20 04:02:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:54,186 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 04:02:54,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681930802] [2020-07-20 04:02:54,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108413220] [2020-07-20 04:02:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c278096 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 04:02:54,259 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c278096 issued 4 check-sat command(s) [2020-07-20 04:02:54,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:54,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 34 conjunts are in the unsatisfiable core [2020-07-20 04:02:54,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:54,286 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:54,387 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 04:02:54,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:54,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2020-07-20 04:02:54,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923470195] [2020-07-20 04:02:54,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-07-20 04:02:54,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:54,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-07-20 04:02:54,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=794, Unknown=0, NotChecked=0, Total=1332 [2020-07-20 04:02:54,390 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand 37 states. [2020-07-20 04:02:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:54,751 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2020-07-20 04:02:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-07-20 04:02:54,751 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 220 [2020-07-20 04:02:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:54,753 INFO L225 Difference]: With dead ends: 233 [2020-07-20 04:02:54,753 INFO L226 Difference]: Without dead ends: 231 [2020-07-20 04:02:54,754 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 04:02:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-20 04:02:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2020-07-20 04:02:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-20 04:02:54,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2020-07-20 04:02:54,765 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 220 [2020-07-20 04:02:54,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:54,766 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2020-07-20 04:02:54,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-07-20 04:02:54,766 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2020-07-20 04:02:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-20 04:02:54,768 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:54,769 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:54,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:54,983 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:54,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:54,983 INFO L82 PathProgramCache]: Analyzing trace with hash 28427688, now seen corresponding path program 31 times [2020-07-20 04:02:54,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:54,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74548331] [2020-07-20 04:02:54,984 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:55,887 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 04:02:55,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74548331] [2020-07-20 04:02:55,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422901745] [2020-07-20 04:02:55,888 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@362a31c0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:55,968 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@362a31c0 issued 4 check-sat command(s) [2020-07-20 04:02:55,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:55,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-20 04:02:55,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:55,993 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:56,074 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 04:02:56,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:56,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 38 [2020-07-20 04:02:56,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989866444] [2020-07-20 04:02:56,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-07-20 04:02:56,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:56,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-07-20 04:02:56,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=835, Unknown=0, NotChecked=0, Total=1406 [2020-07-20 04:02:56,077 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand 38 states. [2020-07-20 04:02:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:56,473 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2020-07-20 04:02:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-07-20 04:02:56,474 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 227 [2020-07-20 04:02:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:56,475 INFO L225 Difference]: With dead ends: 240 [2020-07-20 04:02:56,476 INFO L226 Difference]: Without dead ends: 238 [2020-07-20 04:02:56,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=577, Invalid=905, Unknown=0, NotChecked=0, Total=1482 [2020-07-20 04:02:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-20 04:02:56,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2020-07-20 04:02:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-07-20 04:02:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2020-07-20 04:02:56,487 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 227 [2020-07-20 04:02:56,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:56,487 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2020-07-20 04:02:56,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-07-20 04:02:56,488 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2020-07-20 04:02:56,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-20 04:02:56,489 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:56,489 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:56,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:56,703 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:56,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:56,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1172422475, now seen corresponding path program 32 times [2020-07-20 04:02:56,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:56,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994390687] [2020-07-20 04:02:56,704 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:57,666 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 04:02:57,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994390687] [2020-07-20 04:02:57,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43613324] [2020-07-20 04:02:57,667 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ee9d9e2 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 04:02:57,779 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ee9d9e2 issued 4 check-sat command(s) [2020-07-20 04:02:57,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:57,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 36 conjunts are in the unsatisfiable core [2020-07-20 04:02:57,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:57,818 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:57,930 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 04:02:57,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:57,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2020-07-20 04:02:57,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721358314] [2020-07-20 04:02:57,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-07-20 04:02:57,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:57,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-07-20 04:02:57,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=877, Unknown=0, NotChecked=0, Total=1482 [2020-07-20 04:02:57,934 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand 39 states. [2020-07-20 04:02:58,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:02:58,373 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2020-07-20 04:02:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-20 04:02:58,373 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 234 [2020-07-20 04:02:58,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:02:58,376 INFO L225 Difference]: With dead ends: 247 [2020-07-20 04:02:58,376 INFO L226 Difference]: Without dead ends: 245 [2020-07-20 04:02:58,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=611, Invalid=949, Unknown=0, NotChecked=0, Total=1560 [2020-07-20 04:02:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-07-20 04:02:58,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 244. [2020-07-20 04:02:58,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-07-20 04:02:58,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 244 transitions. [2020-07-20 04:02:58,391 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 244 transitions. Word has length 234 [2020-07-20 04:02:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:02:58,392 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 244 transitions. [2020-07-20 04:02:58,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-07-20 04:02:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 244 transitions. [2020-07-20 04:02:58,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-20 04:02:58,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:02:58,395 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:02:58,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-07-20 04:02:58,611 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:02:58,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:02:58,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1731243272, now seen corresponding path program 33 times [2020-07-20 04:02:58,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:02:58,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953360373] [2020-07-20 04:02:58,613 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:02:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:02:59,555 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 04:02:59,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953360373] [2020-07-20 04:02:59,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343701025] [2020-07-20 04:02:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2ff3e8ce No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:02:59,669 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2ff3e8ce issued 4 check-sat command(s) [2020-07-20 04:02:59,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:02:59,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-20 04:02:59,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:02:59,703 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:02:59,831 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 04:02:59,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:02:59,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 40 [2020-07-20 04:02:59,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785661706] [2020-07-20 04:02:59,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-07-20 04:02:59,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:02:59,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-07-20 04:02:59,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=920, Unknown=0, NotChecked=0, Total=1560 [2020-07-20 04:02:59,835 INFO L87 Difference]: Start difference. First operand 244 states and 244 transitions. Second operand 40 states. [2020-07-20 04:03:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:00,202 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2020-07-20 04:03:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-07-20 04:03:00,208 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 241 [2020-07-20 04:03:00,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:00,209 INFO L225 Difference]: With dead ends: 254 [2020-07-20 04:03:00,209 INFO L226 Difference]: Without dead ends: 252 [2020-07-20 04:03:00,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=646, Invalid=994, Unknown=0, NotChecked=0, Total=1640 [2020-07-20 04:03:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-07-20 04:03:00,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2020-07-20 04:03:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-20 04:03:00,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2020-07-20 04:03:00,220 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 241 [2020-07-20 04:03:00,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:00,221 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2020-07-20 04:03:00,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-07-20 04:03:00,221 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2020-07-20 04:03:00,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-20 04:03:00,222 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:00,223 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:00,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:00,437 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:00,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:00,437 INFO L82 PathProgramCache]: Analyzing trace with hash -288469675, now seen corresponding path program 34 times [2020-07-20 04:03:00,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:00,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306485503] [2020-07-20 04:03:00,438 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:01,299 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 04:03:01,299 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306485503] [2020-07-20 04:03:01,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372753014] [2020-07-20 04:03:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f30eac3 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 04:03:01,400 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f30eac3 issued 4 check-sat command(s) [2020-07-20 04:03:01,401 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:01,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 38 conjunts are in the unsatisfiable core [2020-07-20 04:03:01,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:01,428 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:01,521 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 04:03:01,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:01,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2020-07-20 04:03:01,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989400630] [2020-07-20 04:03:01,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-07-20 04:03:01,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:01,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-07-20 04:03:01,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=964, Unknown=0, NotChecked=0, Total=1640 [2020-07-20 04:03:01,524 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand 41 states. [2020-07-20 04:03:01,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:01,982 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2020-07-20 04:03:01,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-07-20 04:03:01,982 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 248 [2020-07-20 04:03:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:01,984 INFO L225 Difference]: With dead ends: 261 [2020-07-20 04:03:01,984 INFO L226 Difference]: Without dead ends: 259 [2020-07-20 04:03:01,985 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 04:03:01,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-20 04:03:01,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 258. [2020-07-20 04:03:01,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-20 04:03:01,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 258 transitions. [2020-07-20 04:03:01,994 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 258 transitions. Word has length 248 [2020-07-20 04:03:01,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:01,994 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 258 transitions. [2020-07-20 04:03:01,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-07-20 04:03:01,994 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 258 transitions. [2020-07-20 04:03:01,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-07-20 04:03:01,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:01,996 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:02,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-07-20 04:03:02,210 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:02,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:02,210 INFO L82 PathProgramCache]: Analyzing trace with hash 123153512, now seen corresponding path program 35 times [2020-07-20 04:03:02,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:02,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284989737] [2020-07-20 04:03:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:03,115 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 04:03:03,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284989737] [2020-07-20 04:03:03,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205121634] [2020-07-20 04:03:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4e8de98c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:03,199 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4e8de98c issued 4 check-sat command(s) [2020-07-20 04:03:03,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:03,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-20 04:03:03,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:03,225 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:03,342 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 04:03:03,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:03,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 42 [2020-07-20 04:03:03,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083954111] [2020-07-20 04:03:03,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-07-20 04:03:03,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:03,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-07-20 04:03:03,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=1009, Unknown=0, NotChecked=0, Total=1722 [2020-07-20 04:03:03,346 INFO L87 Difference]: Start difference. First operand 258 states and 258 transitions. Second operand 42 states. [2020-07-20 04:03:03,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:03,804 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2020-07-20 04:03:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-20 04:03:03,805 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 255 [2020-07-20 04:03:03,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:03,807 INFO L225 Difference]: With dead ends: 268 [2020-07-20 04:03:03,807 INFO L226 Difference]: Without dead ends: 266 [2020-07-20 04:03:03,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=719, Invalid=1087, Unknown=0, NotChecked=0, Total=1806 [2020-07-20 04:03:03,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-20 04:03:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 265. [2020-07-20 04:03:03,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-20 04:03:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 265 transitions. [2020-07-20 04:03:03,822 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 265 transitions. Word has length 255 [2020-07-20 04:03:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:03,823 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 265 transitions. [2020-07-20 04:03:03,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-07-20 04:03:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 265 transitions. [2020-07-20 04:03:03,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-20 04:03:03,825 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:03,825 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:04,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:04,039 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:04,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:04,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1583627787, now seen corresponding path program 36 times [2020-07-20 04:03:04,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:04,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762859102] [2020-07-20 04:03:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:04,996 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 04:03:04,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762859102] [2020-07-20 04:03:04,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861134769] [2020-07-20 04:03:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e70999 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 04:03:05,086 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6e70999 issued 4 check-sat command(s) [2020-07-20 04:03:05,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:05,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 40 conjunts are in the unsatisfiable core [2020-07-20 04:03:05,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:05,112 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:05,218 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 04:03:05,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:05,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2020-07-20 04:03:05,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628785745] [2020-07-20 04:03:05,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-07-20 04:03:05,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:05,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-07-20 04:03:05,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=751, Invalid=1055, Unknown=0, NotChecked=0, Total=1806 [2020-07-20 04:03:05,226 INFO L87 Difference]: Start difference. First operand 265 states and 265 transitions. Second operand 43 states. [2020-07-20 04:03:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:05,655 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2020-07-20 04:03:05,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-20 04:03:05,655 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 262 [2020-07-20 04:03:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:05,657 INFO L225 Difference]: With dead ends: 275 [2020-07-20 04:03:05,657 INFO L226 Difference]: Without dead ends: 273 [2020-07-20 04:03:05,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=757, Invalid=1135, Unknown=0, NotChecked=0, Total=1892 [2020-07-20 04:03:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-07-20 04:03:05,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 272. [2020-07-20 04:03:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-20 04:03:05,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2020-07-20 04:03:05,666 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 262 [2020-07-20 04:03:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:05,666 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2020-07-20 04:03:05,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-07-20 04:03:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2020-07-20 04:03:05,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-20 04:03:05,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:05,668 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:05,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-07-20 04:03:05,879 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:05,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:05,880 INFO L82 PathProgramCache]: Analyzing trace with hash -117750840, now seen corresponding path program 37 times [2020-07-20 04:03:05,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:05,880 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770063742] [2020-07-20 04:03:05,880 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:06,893 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 04:03:06,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770063742] [2020-07-20 04:03:06,893 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151099281] [2020-07-20 04:03:06,893 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@23ccb007 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:06,972 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@23ccb007 issued 4 check-sat command(s) [2020-07-20 04:03:06,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:06,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-20 04:03:06,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:06,998 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:07,100 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 04:03:07,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:07,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 44 [2020-07-20 04:03:07,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129846616] [2020-07-20 04:03:07,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-07-20 04:03:07,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:07,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-07-20 04:03:07,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=790, Invalid=1102, Unknown=0, NotChecked=0, Total=1892 [2020-07-20 04:03:07,103 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand 44 states. [2020-07-20 04:03:07,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:07,562 INFO L93 Difference]: Finished difference Result 282 states and 282 transitions. [2020-07-20 04:03:07,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-07-20 04:03:07,563 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 269 [2020-07-20 04:03:07,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:07,566 INFO L225 Difference]: With dead ends: 282 [2020-07-20 04:03:07,566 INFO L226 Difference]: Without dead ends: 280 [2020-07-20 04:03:07,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=796, Invalid=1184, Unknown=0, NotChecked=0, Total=1980 [2020-07-20 04:03:07,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-07-20 04:03:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2020-07-20 04:03:07,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-07-20 04:03:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 279 transitions. [2020-07-20 04:03:07,580 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 279 transitions. Word has length 269 [2020-07-20 04:03:07,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:07,581 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 279 transitions. [2020-07-20 04:03:07,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-07-20 04:03:07,581 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 279 transitions. [2020-07-20 04:03:07,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-20 04:03:07,584 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:07,584 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:07,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-07-20 04:03:07,798 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:07,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:07,798 INFO L82 PathProgramCache]: Analyzing trace with hash 2129698453, now seen corresponding path program 38 times [2020-07-20 04:03:07,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:07,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882066294] [2020-07-20 04:03:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:08,914 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 04:03:08,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882066294] [2020-07-20 04:03:08,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620635108] [2020-07-20 04:03:08,915 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@267a8dcc 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 04:03:09,000 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@267a8dcc issued 4 check-sat command(s) [2020-07-20 04:03:09,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:09,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 42 conjunts are in the unsatisfiable core [2020-07-20 04:03:09,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:09,026 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:09,109 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 04:03:09,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:09,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2020-07-20 04:03:09,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340861636] [2020-07-20 04:03:09,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-07-20 04:03:09,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:09,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-07-20 04:03:09,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=830, Invalid=1150, Unknown=0, NotChecked=0, Total=1980 [2020-07-20 04:03:09,112 INFO L87 Difference]: Start difference. First operand 279 states and 279 transitions. Second operand 45 states. [2020-07-20 04:03:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:09,607 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2020-07-20 04:03:09,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-20 04:03:09,608 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 276 [2020-07-20 04:03:09,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:09,611 INFO L225 Difference]: With dead ends: 289 [2020-07-20 04:03:09,611 INFO L226 Difference]: Without dead ends: 287 [2020-07-20 04:03:09,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=836, Invalid=1234, Unknown=0, NotChecked=0, Total=2070 [2020-07-20 04:03:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-20 04:03:09,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2020-07-20 04:03:09,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-20 04:03:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2020-07-20 04:03:09,619 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 276 [2020-07-20 04:03:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:09,620 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2020-07-20 04:03:09,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-07-20 04:03:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2020-07-20 04:03:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-07-20 04:03:09,621 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:09,622 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:09,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-07-20 04:03:09,836 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:09,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:09,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1535970520, now seen corresponding path program 39 times [2020-07-20 04:03:09,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:09,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673153032] [2020-07-20 04:03:09,837 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:10,875 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 04:03:10,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673153032] [2020-07-20 04:03:10,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394681974] [2020-07-20 04:03:10,875 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7547ce6f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:10,963 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7547ce6f issued 4 check-sat command(s) [2020-07-20 04:03:10,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:10,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-20 04:03:10,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:10,992 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:11,092 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 04:03:11,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:11,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 46 [2020-07-20 04:03:11,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419808012] [2020-07-20 04:03:11,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-07-20 04:03:11,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:11,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-07-20 04:03:11,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=1199, Unknown=0, NotChecked=0, Total=2070 [2020-07-20 04:03:11,094 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand 46 states. [2020-07-20 04:03:11,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:11,556 INFO L93 Difference]: Finished difference Result 296 states and 296 transitions. [2020-07-20 04:03:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-07-20 04:03:11,557 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 283 [2020-07-20 04:03:11,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:11,559 INFO L225 Difference]: With dead ends: 296 [2020-07-20 04:03:11,559 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 04:03:11,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=877, Invalid=1285, Unknown=0, NotChecked=0, Total=2162 [2020-07-20 04:03:11,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 04:03:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 293. [2020-07-20 04:03:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-07-20 04:03:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 293 transitions. [2020-07-20 04:03:11,567 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 293 transitions. Word has length 283 [2020-07-20 04:03:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:11,568 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 293 transitions. [2020-07-20 04:03:11,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-07-20 04:03:11,568 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 293 transitions. [2020-07-20 04:03:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-07-20 04:03:11,570 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:11,570 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:11,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-07-20 04:03:11,785 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:11,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:11,786 INFO L82 PathProgramCache]: Analyzing trace with hash 834069301, now seen corresponding path program 40 times [2020-07-20 04:03:11,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:11,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838343603] [2020-07-20 04:03:11,786 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:12,893 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 04:03:12,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838343603] [2020-07-20 04:03:12,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478725597] [2020-07-20 04:03:12,894 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@39bae55f 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 04:03:12,988 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@39bae55f issued 4 check-sat command(s) [2020-07-20 04:03:12,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:12,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-20 04:03:12,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:13,019 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:13,144 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 04:03:13,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:13,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2020-07-20 04:03:13,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030395003] [2020-07-20 04:03:13,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-07-20 04:03:13,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:13,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-07-20 04:03:13,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=1249, Unknown=0, NotChecked=0, Total=2162 [2020-07-20 04:03:13,147 INFO L87 Difference]: Start difference. First operand 293 states and 293 transitions. Second operand 47 states. [2020-07-20 04:03:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:13,632 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2020-07-20 04:03:13,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-20 04:03:13,633 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 290 [2020-07-20 04:03:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:13,635 INFO L225 Difference]: With dead ends: 303 [2020-07-20 04:03:13,635 INFO L226 Difference]: Without dead ends: 301 [2020-07-20 04:03:13,636 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 04:03:13,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-07-20 04:03:13,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2020-07-20 04:03:13,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-07-20 04:03:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 300 transitions. [2020-07-20 04:03:13,645 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 300 transitions. Word has length 290 [2020-07-20 04:03:13,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:13,646 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 300 transitions. [2020-07-20 04:03:13,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-07-20 04:03:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 300 transitions. [2020-07-20 04:03:13,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-07-20 04:03:13,648 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:13,649 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:13,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:13,862 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:13,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:13,863 INFO L82 PathProgramCache]: Analyzing trace with hash 596916872, now seen corresponding path program 41 times [2020-07-20 04:03:13,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:13,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46665143] [2020-07-20 04:03:13,863 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:15,037 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 04:03:15,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46665143] [2020-07-20 04:03:15,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524991783] [2020-07-20 04:03:15,038 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@44a99e2f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:15,125 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@44a99e2f issued 4 check-sat command(s) [2020-07-20 04:03:15,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:15,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-20 04:03:15,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:15,155 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:15,252 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 04:03:15,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:15,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 48 [2020-07-20 04:03:15,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689251292] [2020-07-20 04:03:15,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-07-20 04:03:15,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:15,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-07-20 04:03:15,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=1300, Unknown=0, NotChecked=0, Total=2256 [2020-07-20 04:03:15,254 INFO L87 Difference]: Start difference. First operand 300 states and 300 transitions. Second operand 48 states. [2020-07-20 04:03:15,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:15,803 INFO L93 Difference]: Finished difference Result 310 states and 310 transitions. [2020-07-20 04:03:15,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-07-20 04:03:15,803 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 297 [2020-07-20 04:03:15,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:15,805 INFO L225 Difference]: With dead ends: 310 [2020-07-20 04:03:15,805 INFO L226 Difference]: Without dead ends: 308 [2020-07-20 04:03:15,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=962, Invalid=1390, Unknown=0, NotChecked=0, Total=2352 [2020-07-20 04:03:15,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-07-20 04:03:15,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 307. [2020-07-20 04:03:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-07-20 04:03:15,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 307 transitions. [2020-07-20 04:03:15,813 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 307 transitions. Word has length 297 [2020-07-20 04:03:15,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:15,814 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 307 transitions. [2020-07-20 04:03:15,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-07-20 04:03:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 307 transitions. [2020-07-20 04:03:15,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-07-20 04:03:15,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:15,816 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:16,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-07-20 04:03:16,029 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:16,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:16,030 INFO L82 PathProgramCache]: Analyzing trace with hash 56135637, now seen corresponding path program 42 times [2020-07-20 04:03:16,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:16,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275756743] [2020-07-20 04:03:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:17,269 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 04:03:17,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275756743] [2020-07-20 04:03:17,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186039110] [2020-07-20 04:03:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32eb3a97 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 04:03:17,385 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32eb3a97 issued 4 check-sat command(s) [2020-07-20 04:03:17,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:17,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 46 conjunts are in the unsatisfiable core [2020-07-20 04:03:17,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:17,412 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:17,524 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 04:03:17,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:17,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2020-07-20 04:03:17,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530771693] [2020-07-20 04:03:17,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-07-20 04:03:17,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:17,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-07-20 04:03:17,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=1352, Unknown=0, NotChecked=0, Total=2352 [2020-07-20 04:03:17,527 INFO L87 Difference]: Start difference. First operand 307 states and 307 transitions. Second operand 49 states. [2020-07-20 04:03:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:18,068 INFO L93 Difference]: Finished difference Result 317 states and 317 transitions. [2020-07-20 04:03:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-07-20 04:03:18,068 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 304 [2020-07-20 04:03:18,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:18,071 INFO L225 Difference]: With dead ends: 317 [2020-07-20 04:03:18,071 INFO L226 Difference]: Without dead ends: 315 [2020-07-20 04:03:18,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1006, Invalid=1444, Unknown=0, NotChecked=0, Total=2450 [2020-07-20 04:03:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-20 04:03:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 314. [2020-07-20 04:03:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-07-20 04:03:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 314 transitions. [2020-07-20 04:03:18,080 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 314 transitions. Word has length 304 [2020-07-20 04:03:18,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:18,080 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 314 transitions. [2020-07-20 04:03:18,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-07-20 04:03:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 314 transitions. [2020-07-20 04:03:18,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-07-20 04:03:18,082 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:18,083 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:18,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:18,298 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:18,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:18,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1581966872, now seen corresponding path program 43 times [2020-07-20 04:03:18,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:18,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009501069] [2020-07-20 04:03:18,299 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:19,596 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 04:03:19,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009501069] [2020-07-20 04:03:19,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775077656] [2020-07-20 04:03:19,597 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7aa23d4 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:19,685 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7aa23d4 issued 4 check-sat command(s) [2020-07-20 04:03:19,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:19,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 47 conjunts are in the unsatisfiable core [2020-07-20 04:03:19,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:19,710 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:19,827 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 04:03:19,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:19,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 50 [2020-07-20 04:03:19,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087140106] [2020-07-20 04:03:19,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-07-20 04:03:19,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:19,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-07-20 04:03:19,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1045, Invalid=1405, Unknown=0, NotChecked=0, Total=2450 [2020-07-20 04:03:19,830 INFO L87 Difference]: Start difference. First operand 314 states and 314 transitions. Second operand 50 states. [2020-07-20 04:03:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:20,439 INFO L93 Difference]: Finished difference Result 324 states and 324 transitions. [2020-07-20 04:03:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-07-20 04:03:20,440 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 311 [2020-07-20 04:03:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:20,442 INFO L225 Difference]: With dead ends: 324 [2020-07-20 04:03:20,442 INFO L226 Difference]: Without dead ends: 322 [2020-07-20 04:03:20,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1051, Invalid=1499, Unknown=0, NotChecked=0, Total=2550 [2020-07-20 04:03:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-07-20 04:03:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2020-07-20 04:03:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-20 04:03:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2020-07-20 04:03:20,451 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 311 [2020-07-20 04:03:20,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:20,451 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2020-07-20 04:03:20,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-07-20 04:03:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2020-07-20 04:03:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-07-20 04:03:20,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:20,454 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:20,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:20,667 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:20,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:20,668 INFO L82 PathProgramCache]: Analyzing trace with hash 2076157045, now seen corresponding path program 44 times [2020-07-20 04:03:20,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:20,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694168600] [2020-07-20 04:03:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:21,984 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 04:03:21,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694168600] [2020-07-20 04:03:21,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761786047] [2020-07-20 04:03:21,984 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@290637ac 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 04:03:22,067 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@290637ac issued 4 check-sat command(s) [2020-07-20 04:03:22,068 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:22,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-20 04:03:22,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:22,094 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:22,233 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 04:03:22,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:22,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2020-07-20 04:03:22,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146731504] [2020-07-20 04:03:22,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-07-20 04:03:22,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:22,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-07-20 04:03:22,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1091, Invalid=1459, Unknown=0, NotChecked=0, Total=2550 [2020-07-20 04:03:22,237 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand 51 states. [2020-07-20 04:03:22,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:22,875 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2020-07-20 04:03:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-07-20 04:03:22,876 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 318 [2020-07-20 04:03:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:22,878 INFO L225 Difference]: With dead ends: 331 [2020-07-20 04:03:22,879 INFO L226 Difference]: Without dead ends: 329 [2020-07-20 04:03:22,879 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 04:03:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-07-20 04:03:22,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2020-07-20 04:03:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-07-20 04:03:22,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 328 transitions. [2020-07-20 04:03:22,887 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 328 transitions. Word has length 318 [2020-07-20 04:03:22,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:22,888 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 328 transitions. [2020-07-20 04:03:22,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-07-20 04:03:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 328 transitions. [2020-07-20 04:03:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-20 04:03:22,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:22,890 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:23,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-07-20 04:03:23,106 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:23,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:23,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1146384056, now seen corresponding path program 45 times [2020-07-20 04:03:23,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:23,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916209031] [2020-07-20 04:03:23,107 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:24,514 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 04:03:24,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916209031] [2020-07-20 04:03:24,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238272048] [2020-07-20 04:03:24,515 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7b01cc27 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:24,649 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7b01cc27 issued 4 check-sat command(s) [2020-07-20 04:03:24,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:24,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 49 conjunts are in the unsatisfiable core [2020-07-20 04:03:24,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:24,684 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:24,867 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 04:03:24,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:24,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 52 [2020-07-20 04:03:24,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728483353] [2020-07-20 04:03:24,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-07-20 04:03:24,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:24,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-07-20 04:03:24,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1138, Invalid=1514, Unknown=0, NotChecked=0, Total=2652 [2020-07-20 04:03:24,870 INFO L87 Difference]: Start difference. First operand 328 states and 328 transitions. Second operand 52 states. [2020-07-20 04:03:25,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:25,472 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2020-07-20 04:03:25,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-07-20 04:03:25,472 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 325 [2020-07-20 04:03:25,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:25,475 INFO L225 Difference]: With dead ends: 338 [2020-07-20 04:03:25,475 INFO L226 Difference]: Without dead ends: 336 [2020-07-20 04:03:25,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1144, Invalid=1612, Unknown=0, NotChecked=0, Total=2756 [2020-07-20 04:03:25,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-07-20 04:03:25,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 335. [2020-07-20 04:03:25,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-20 04:03:25,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 335 transitions. [2020-07-20 04:03:25,484 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 335 transitions. Word has length 325 [2020-07-20 04:03:25,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:25,484 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 335 transitions. [2020-07-20 04:03:25,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-07-20 04:03:25,485 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 335 transitions. [2020-07-20 04:03:25,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-20 04:03:25,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:25,487 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:25,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-07-20 04:03:25,701 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:25,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:25,702 INFO L82 PathProgramCache]: Analyzing trace with hash 22421781, now seen corresponding path program 46 times [2020-07-20 04:03:25,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:25,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512720605] [2020-07-20 04:03:25,702 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:27,144 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 04:03:27,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512720605] [2020-07-20 04:03:27,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371736736] [2020-07-20 04:03:27,145 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@135232d6 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 04:03:27,288 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@135232d6 issued 4 check-sat command(s) [2020-07-20 04:03:27,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:27,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 50 conjunts are in the unsatisfiable core [2020-07-20 04:03:27,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:27,346 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:27,584 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 04:03:27,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:27,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 53 [2020-07-20 04:03:27,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120930300] [2020-07-20 04:03:27,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-07-20 04:03:27,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:27,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-07-20 04:03:27,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1186, Invalid=1570, Unknown=0, NotChecked=0, Total=2756 [2020-07-20 04:03:27,588 INFO L87 Difference]: Start difference. First operand 335 states and 335 transitions. Second operand 53 states. [2020-07-20 04:03:28,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:28,248 INFO L93 Difference]: Finished difference Result 345 states and 345 transitions. [2020-07-20 04:03:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-07-20 04:03:28,249 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 332 [2020-07-20 04:03:28,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:28,251 INFO L225 Difference]: With dead ends: 345 [2020-07-20 04:03:28,251 INFO L226 Difference]: Without dead ends: 343 [2020-07-20 04:03:28,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1192, Invalid=1670, Unknown=0, NotChecked=0, Total=2862 [2020-07-20 04:03:28,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-20 04:03:28,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 342. [2020-07-20 04:03:28,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-07-20 04:03:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 342 transitions. [2020-07-20 04:03:28,261 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 342 transitions. Word has length 332 [2020-07-20 04:03:28,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:28,262 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 342 transitions. [2020-07-20 04:03:28,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-07-20 04:03:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 342 transitions. [2020-07-20 04:03:28,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-20 04:03:28,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:28,265 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:28,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-07-20 04:03:28,479 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:28,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:28,479 INFO L82 PathProgramCache]: Analyzing trace with hash -540172120, now seen corresponding path program 47 times [2020-07-20 04:03:28,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:28,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388580058] [2020-07-20 04:03:28,480 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:29,986 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 04:03:29,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388580058] [2020-07-20 04:03:29,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002699717] [2020-07-20 04:03:29,987 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@46b2acd7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:30,069 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@46b2acd7 issued 4 check-sat command(s) [2020-07-20 04:03:30,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:30,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 51 conjunts are in the unsatisfiable core [2020-07-20 04:03:30,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:30,104 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:30,213 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 04:03:30,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:30,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 54 [2020-07-20 04:03:30,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657423548] [2020-07-20 04:03:30,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-07-20 04:03:30,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:30,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-07-20 04:03:30,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=1627, Unknown=0, NotChecked=0, Total=2862 [2020-07-20 04:03:30,215 INFO L87 Difference]: Start difference. First operand 342 states and 342 transitions. Second operand 54 states. [2020-07-20 04:03:30,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:30,966 INFO L93 Difference]: Finished difference Result 352 states and 352 transitions. [2020-07-20 04:03:30,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-07-20 04:03:30,967 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 339 [2020-07-20 04:03:30,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:30,969 INFO L225 Difference]: With dead ends: 352 [2020-07-20 04:03:30,969 INFO L226 Difference]: Without dead ends: 350 [2020-07-20 04:03:30,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1241, Invalid=1729, Unknown=0, NotChecked=0, Total=2970 [2020-07-20 04:03:30,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-07-20 04:03:30,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2020-07-20 04:03:30,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-20 04:03:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 349 transitions. [2020-07-20 04:03:30,978 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 349 transitions. Word has length 339 [2020-07-20 04:03:30,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:30,978 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 349 transitions. [2020-07-20 04:03:30,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-07-20 04:03:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 349 transitions. [2020-07-20 04:03:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-07-20 04:03:30,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:30,981 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:31,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:31,197 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:31,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:31,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2030437813, now seen corresponding path program 48 times [2020-07-20 04:03:31,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:31,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500071426] [2020-07-20 04:03:31,197 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:32,741 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 04:03:32,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500071426] [2020-07-20 04:03:32,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124485870] [2020-07-20 04:03:32,741 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32edeb98 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 04:03:32,839 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@32edeb98 issued 4 check-sat command(s) [2020-07-20 04:03:32,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:32,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-20 04:03:32,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:32,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:33,008 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 04:03:33,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:33,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 55 [2020-07-20 04:03:33,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723284380] [2020-07-20 04:03:33,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-07-20 04:03:33,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:33,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-07-20 04:03:33,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1285, Invalid=1685, Unknown=0, NotChecked=0, Total=2970 [2020-07-20 04:03:33,011 INFO L87 Difference]: Start difference. First operand 349 states and 349 transitions. Second operand 55 states. [2020-07-20 04:03:33,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:33,711 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2020-07-20 04:03:33,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-07-20 04:03:33,712 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 346 [2020-07-20 04:03:33,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:33,714 INFO L225 Difference]: With dead ends: 359 [2020-07-20 04:03:33,715 INFO L226 Difference]: Without dead ends: 357 [2020-07-20 04:03:33,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1291, Invalid=1789, Unknown=0, NotChecked=0, Total=3080 [2020-07-20 04:03:33,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-07-20 04:03:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2020-07-20 04:03:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-07-20 04:03:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2020-07-20 04:03:33,723 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 346 [2020-07-20 04:03:33,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:33,724 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2020-07-20 04:03:33,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-07-20 04:03:33,724 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2020-07-20 04:03:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-07-20 04:03:33,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:33,727 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:33,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2020-07-20 04:03:33,940 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:33,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:33,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1376696312, now seen corresponding path program 49 times [2020-07-20 04:03:33,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:33,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144639925] [2020-07-20 04:03:33,941 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:35,576 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 04:03:35,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144639925] [2020-07-20 04:03:35,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948235316] [2020-07-20 04:03:35,576 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@638253a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:35,666 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@638253a issued 4 check-sat command(s) [2020-07-20 04:03:35,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:35,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-20 04:03:35,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:35,696 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:35,892 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 04:03:35,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:35,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 56 [2020-07-20 04:03:35,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103852482] [2020-07-20 04:03:35,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-07-20 04:03:35,894 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:35,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-07-20 04:03:35,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1336, Invalid=1744, Unknown=0, NotChecked=0, Total=3080 [2020-07-20 04:03:35,895 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand 56 states. [2020-07-20 04:03:36,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:36,625 INFO L93 Difference]: Finished difference Result 366 states and 366 transitions. [2020-07-20 04:03:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-07-20 04:03:36,626 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 353 [2020-07-20 04:03:36,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:36,628 INFO L225 Difference]: With dead ends: 366 [2020-07-20 04:03:36,628 INFO L226 Difference]: Without dead ends: 364 [2020-07-20 04:03:36,629 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 04:03:36,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-07-20 04:03:36,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2020-07-20 04:03:36,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-07-20 04:03:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 363 transitions. [2020-07-20 04:03:36,637 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 363 transitions. Word has length 353 [2020-07-20 04:03:36,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:36,638 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 363 transitions. [2020-07-20 04:03:36,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-07-20 04:03:36,638 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 363 transitions. [2020-07-20 04:03:36,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-07-20 04:03:36,640 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:36,641 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:36,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-07-20 04:03:36,855 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:36,856 INFO L82 PathProgramCache]: Analyzing trace with hash -432450987, now seen corresponding path program 50 times [2020-07-20 04:03:36,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:36,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694036635] [2020-07-20 04:03:36,857 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:38,535 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 04:03:38,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694036635] [2020-07-20 04:03:38,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621426093] [2020-07-20 04:03:38,536 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a747c6d 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 04:03:38,634 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a747c6d issued 4 check-sat command(s) [2020-07-20 04:03:38,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:38,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 54 conjunts are in the unsatisfiable core [2020-07-20 04:03:38,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:38,663 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:38,801 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 04:03:38,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:38,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 57 [2020-07-20 04:03:38,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264889101] [2020-07-20 04:03:38,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-07-20 04:03:38,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:38,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-07-20 04:03:38,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1388, Invalid=1804, Unknown=0, NotChecked=0, Total=3192 [2020-07-20 04:03:38,803 INFO L87 Difference]: Start difference. First operand 363 states and 363 transitions. Second operand 57 states. [2020-07-20 04:03:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:39,627 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2020-07-20 04:03:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-07-20 04:03:39,628 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 360 [2020-07-20 04:03:39,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:39,630 INFO L225 Difference]: With dead ends: 373 [2020-07-20 04:03:39,630 INFO L226 Difference]: Without dead ends: 371 [2020-07-20 04:03:39,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1394, Invalid=1912, Unknown=0, NotChecked=0, Total=3306 [2020-07-20 04:03:39,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-20 04:03:39,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 370. [2020-07-20 04:03:39,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-07-20 04:03:39,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 370 transitions. [2020-07-20 04:03:39,640 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 370 transitions. Word has length 360 [2020-07-20 04:03:39,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:39,640 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 370 transitions. [2020-07-20 04:03:39,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-07-20 04:03:39,641 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 370 transitions. [2020-07-20 04:03:39,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-07-20 04:03:39,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:39,644 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:39,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:39,859 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:39,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:39,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1466730344, now seen corresponding path program 51 times [2020-07-20 04:03:39,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:39,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272708865] [2020-07-20 04:03:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:41,613 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 04:03:41,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272708865] [2020-07-20 04:03:41,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308362543] [2020-07-20 04:03:41,613 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7b45822c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:41,710 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7b45822c issued 4 check-sat command(s) [2020-07-20 04:03:41,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:41,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 55 conjunts are in the unsatisfiable core [2020-07-20 04:03:41,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:41,740 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:41,940 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 04:03:41,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:41,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 58 [2020-07-20 04:03:41,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007281487] [2020-07-20 04:03:41,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-07-20 04:03:41,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:41,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-07-20 04:03:41,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=1865, Unknown=0, NotChecked=0, Total=3306 [2020-07-20 04:03:41,946 INFO L87 Difference]: Start difference. First operand 370 states and 370 transitions. Second operand 58 states. [2020-07-20 04:03:42,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:42,818 INFO L93 Difference]: Finished difference Result 380 states and 380 transitions. [2020-07-20 04:03:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-07-20 04:03:42,819 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 367 [2020-07-20 04:03:42,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:42,821 INFO L225 Difference]: With dead ends: 380 [2020-07-20 04:03:42,821 INFO L226 Difference]: Without dead ends: 378 [2020-07-20 04:03:42,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1447, Invalid=1975, Unknown=0, NotChecked=0, Total=3422 [2020-07-20 04:03:42,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-07-20 04:03:42,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2020-07-20 04:03:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-07-20 04:03:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 377 transitions. [2020-07-20 04:03:42,829 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 377 transitions. Word has length 367 [2020-07-20 04:03:42,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:42,830 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 377 transitions. [2020-07-20 04:03:42,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-07-20 04:03:42,830 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 377 transitions. [2020-07-20 04:03:42,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-07-20 04:03:42,832 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:42,833 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:43,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-07-20 04:03:43,046 INFO L427 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:43,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:43,047 INFO L82 PathProgramCache]: Analyzing trace with hash 182060789, now seen corresponding path program 52 times [2020-07-20 04:03:43,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:43,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082957098] [2020-07-20 04:03:43,047 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:44,853 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 04:03:44,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082957098] [2020-07-20 04:03:44,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546530887] [2020-07-20 04:03:44,853 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c6316eb 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 04:03:44,949 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4c6316eb issued 4 check-sat command(s) [2020-07-20 04:03:44,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:44,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 56 conjunts are in the unsatisfiable core [2020-07-20 04:03:44,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:44,980 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:45,210 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 04:03:45,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:45,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 59 [2020-07-20 04:03:45,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492237986] [2020-07-20 04:03:45,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-07-20 04:03:45,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:45,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-07-20 04:03:45,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1495, Invalid=1927, Unknown=0, NotChecked=0, Total=3422 [2020-07-20 04:03:45,213 INFO L87 Difference]: Start difference. First operand 377 states and 377 transitions. Second operand 59 states. [2020-07-20 04:03:46,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:46,047 INFO L93 Difference]: Finished difference Result 387 states and 387 transitions. [2020-07-20 04:03:46,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-07-20 04:03:46,048 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 374 [2020-07-20 04:03:46,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:46,050 INFO L225 Difference]: With dead ends: 387 [2020-07-20 04:03:46,050 INFO L226 Difference]: Without dead ends: 385 [2020-07-20 04:03:46,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1501, Invalid=2039, Unknown=0, NotChecked=0, Total=3540 [2020-07-20 04:03:46,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-07-20 04:03:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2020-07-20 04:03:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-07-20 04:03:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 384 transitions. [2020-07-20 04:03:46,059 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 384 transitions. Word has length 374 [2020-07-20 04:03:46,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:46,059 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 384 transitions. [2020-07-20 04:03:46,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-07-20 04:03:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 384 transitions. [2020-07-20 04:03:46,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-07-20 04:03:46,061 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:46,062 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:46,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:46,263 INFO L427 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:46,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:46,263 INFO L82 PathProgramCache]: Analyzing trace with hash -15376696, now seen corresponding path program 53 times [2020-07-20 04:03:46,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:46,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174952137] [2020-07-20 04:03:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:48,196 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 04:03:48,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174952137] [2020-07-20 04:03:48,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016380307] [2020-07-20 04:03:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3dbb091f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:48,296 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3dbb091f issued 4 check-sat command(s) [2020-07-20 04:03:48,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:48,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 57 conjunts are in the unsatisfiable core [2020-07-20 04:03:48,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:48,317 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:48,451 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 04:03:48,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:48,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 60 [2020-07-20 04:03:48,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271305140] [2020-07-20 04:03:48,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-07-20 04:03:48,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:48,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-07-20 04:03:48,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1550, Invalid=1990, Unknown=0, NotChecked=0, Total=3540 [2020-07-20 04:03:48,453 INFO L87 Difference]: Start difference. First operand 384 states and 384 transitions. Second operand 60 states. [2020-07-20 04:03:49,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:49,378 INFO L93 Difference]: Finished difference Result 394 states and 394 transitions. [2020-07-20 04:03:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-07-20 04:03:49,378 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 381 [2020-07-20 04:03:49,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:49,381 INFO L225 Difference]: With dead ends: 394 [2020-07-20 04:03:49,381 INFO L226 Difference]: Without dead ends: 392 [2020-07-20 04:03:49,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1556, Invalid=2104, Unknown=0, NotChecked=0, Total=3660 [2020-07-20 04:03:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-07-20 04:03:49,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2020-07-20 04:03:49,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-20 04:03:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 391 transitions. [2020-07-20 04:03:49,389 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 391 transitions. Word has length 381 [2020-07-20 04:03:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:49,390 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 391 transitions. [2020-07-20 04:03:49,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-07-20 04:03:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 391 transitions. [2020-07-20 04:03:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-07-20 04:03:49,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:49,393 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:49,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2020-07-20 04:03:49,607 INFO L427 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:49,608 INFO L82 PathProgramCache]: Analyzing trace with hash 122823573, now seen corresponding path program 54 times [2020-07-20 04:03:49,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:49,608 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140956108] [2020-07-20 04:03:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:51,629 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 04:03:51,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140956108] [2020-07-20 04:03:51,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562283242] [2020-07-20 04:03:51,630 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@18e1ca77 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 04:03:51,747 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@18e1ca77 issued 4 check-sat command(s) [2020-07-20 04:03:51,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:51,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 58 conjunts are in the unsatisfiable core [2020-07-20 04:03:51,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:51,802 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:51,947 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 04:03:51,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:51,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 61 [2020-07-20 04:03:51,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740326292] [2020-07-20 04:03:51,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-07-20 04:03:51,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:51,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-07-20 04:03:51,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=2054, Unknown=0, NotChecked=0, Total=3660 [2020-07-20 04:03:51,949 INFO L87 Difference]: Start difference. First operand 391 states and 391 transitions. Second operand 61 states. [2020-07-20 04:03:52,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:52,854 INFO L93 Difference]: Finished difference Result 401 states and 401 transitions. [2020-07-20 04:03:52,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-07-20 04:03:52,855 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 388 [2020-07-20 04:03:52,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:52,858 INFO L225 Difference]: With dead ends: 401 [2020-07-20 04:03:52,858 INFO L226 Difference]: Without dead ends: 399 [2020-07-20 04:03:52,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1612, Invalid=2170, Unknown=0, NotChecked=0, Total=3782 [2020-07-20 04:03:52,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-07-20 04:03:52,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2020-07-20 04:03:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-20 04:03:52,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 398 transitions. [2020-07-20 04:03:52,865 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 398 transitions. Word has length 388 [2020-07-20 04:03:52,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:52,865 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 398 transitions. [2020-07-20 04:03:52,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-07-20 04:03:52,865 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 398 transitions. [2020-07-20 04:03:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-07-20 04:03:52,867 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:52,868 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:53,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-07-20 04:03:53,068 INFO L427 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:53,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:53,069 INFO L82 PathProgramCache]: Analyzing trace with hash 423743016, now seen corresponding path program 55 times [2020-07-20 04:03:53,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:53,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742171018] [2020-07-20 04:03:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:55,105 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 04:03:55,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742171018] [2020-07-20 04:03:55,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957667330] [2020-07-20 04:03:55,106 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b04449f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:55,211 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b04449f issued 4 check-sat command(s) [2020-07-20 04:03:55,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:55,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-20 04:03:55,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:55,242 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:55,451 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 04:03:55,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:55,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 62 [2020-07-20 04:03:55,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183342965] [2020-07-20 04:03:55,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-07-20 04:03:55,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:55,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-07-20 04:03:55,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1663, Invalid=2119, Unknown=0, NotChecked=0, Total=3782 [2020-07-20 04:03:55,454 INFO L87 Difference]: Start difference. First operand 398 states and 398 transitions. Second operand 62 states. [2020-07-20 04:03:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:03:56,296 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2020-07-20 04:03:56,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-07-20 04:03:56,297 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 395 [2020-07-20 04:03:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:03:56,299 INFO L225 Difference]: With dead ends: 408 [2020-07-20 04:03:56,299 INFO L226 Difference]: Without dead ends: 406 [2020-07-20 04:03:56,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1669, Invalid=2237, Unknown=0, NotChecked=0, Total=3906 [2020-07-20 04:03:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-07-20 04:03:56,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2020-07-20 04:03:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-20 04:03:56,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 405 transitions. [2020-07-20 04:03:56,310 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 405 transitions. Word has length 395 [2020-07-20 04:03:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:03:56,310 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 405 transitions. [2020-07-20 04:03:56,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-07-20 04:03:56,310 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 405 transitions. [2020-07-20 04:03:56,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-07-20 04:03:56,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:03:56,313 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:03:56,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:03:56,527 INFO L427 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:03:56,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:03:56,528 INFO L82 PathProgramCache]: Analyzing trace with hash -91510731, now seen corresponding path program 56 times [2020-07-20 04:03:56,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:03:56,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774486755] [2020-07-20 04:03:56,529 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:03:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:03:59,099 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 04:03:59,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774486755] [2020-07-20 04:03:59,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002788441] [2020-07-20 04:03:59,100 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79a4dae9 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 04:03:59,224 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79a4dae9 issued 4 check-sat command(s) [2020-07-20 04:03:59,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:03:59,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 60 conjunts are in the unsatisfiable core [2020-07-20 04:03:59,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:03:59,252 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:03:59,407 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 04:03:59,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:03:59,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 63 [2020-07-20 04:03:59,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407603065] [2020-07-20 04:03:59,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-07-20 04:03:59,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:03:59,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-07-20 04:03:59,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1721, Invalid=2185, Unknown=0, NotChecked=0, Total=3906 [2020-07-20 04:03:59,409 INFO L87 Difference]: Start difference. First operand 405 states and 405 transitions. Second operand 63 states. [2020-07-20 04:04:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:00,434 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2020-07-20 04:04:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-07-20 04:04:00,435 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 402 [2020-07-20 04:04:00,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:00,438 INFO L225 Difference]: With dead ends: 415 [2020-07-20 04:04:00,438 INFO L226 Difference]: Without dead ends: 413 [2020-07-20 04:04:00,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1727, Invalid=2305, Unknown=0, NotChecked=0, Total=4032 [2020-07-20 04:04:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-20 04:04:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 412. [2020-07-20 04:04:00,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-20 04:04:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 412 transitions. [2020-07-20 04:04:00,445 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 412 transitions. Word has length 402 [2020-07-20 04:04:00,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:00,446 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 412 transitions. [2020-07-20 04:04:00,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-07-20 04:04:00,446 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 412 transitions. [2020-07-20 04:04:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-07-20 04:04:00,448 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:00,448 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:00,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-07-20 04:04:00,649 INFO L427 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:00,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:00,650 INFO L82 PathProgramCache]: Analyzing trace with hash -876096120, now seen corresponding path program 57 times [2020-07-20 04:04:00,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:00,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897650952] [2020-07-20 04:04:00,651 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:02,861 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 04:04:02,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897650952] [2020-07-20 04:04:02,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641559768] [2020-07-20 04:04:02,862 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@dd90204 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:02,970 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@dd90204 issued 4 check-sat command(s) [2020-07-20 04:04:02,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:02,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 61 conjunts are in the unsatisfiable core [2020-07-20 04:04:02,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:02,995 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:03,159 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 04:04:03,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:03,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 64 [2020-07-20 04:04:03,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977055249] [2020-07-20 04:04:03,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-07-20 04:04:03,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:03,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-07-20 04:04:03,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1780, Invalid=2252, Unknown=0, NotChecked=0, Total=4032 [2020-07-20 04:04:03,161 INFO L87 Difference]: Start difference. First operand 412 states and 412 transitions. Second operand 64 states. [2020-07-20 04:04:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:04,171 INFO L93 Difference]: Finished difference Result 422 states and 422 transitions. [2020-07-20 04:04:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-07-20 04:04:04,172 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 409 [2020-07-20 04:04:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:04,174 INFO L225 Difference]: With dead ends: 422 [2020-07-20 04:04:04,174 INFO L226 Difference]: Without dead ends: 420 [2020-07-20 04:04:04,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1786, Invalid=2374, Unknown=0, NotChecked=0, Total=4160 [2020-07-20 04:04:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-07-20 04:04:04,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2020-07-20 04:04:04,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-07-20 04:04:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 419 transitions. [2020-07-20 04:04:04,181 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 419 transitions. Word has length 409 [2020-07-20 04:04:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:04,181 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 419 transitions. [2020-07-20 04:04:04,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-07-20 04:04:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 419 transitions. [2020-07-20 04:04:04,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-07-20 04:04:04,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:04,184 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:04,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:04,384 INFO L427 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:04,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1578068779, now seen corresponding path program 58 times [2020-07-20 04:04:04,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:04,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433588643] [2020-07-20 04:04:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:06,666 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 04:04:06,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433588643] [2020-07-20 04:04:06,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464342589] [2020-07-20 04:04:06,667 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f73e6b8 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 04:04:06,775 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f73e6b8 issued 4 check-sat command(s) [2020-07-20 04:04:06,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:06,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 62 conjunts are in the unsatisfiable core [2020-07-20 04:04:06,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:06,797 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:06,951 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 04:04:06,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:06,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 65 [2020-07-20 04:04:06,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673731014] [2020-07-20 04:04:06,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-07-20 04:04:06,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:06,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-07-20 04:04:06,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1840, Invalid=2320, Unknown=0, NotChecked=0, Total=4160 [2020-07-20 04:04:06,953 INFO L87 Difference]: Start difference. First operand 419 states and 419 transitions. Second operand 65 states. [2020-07-20 04:04:07,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:07,907 INFO L93 Difference]: Finished difference Result 429 states and 429 transitions. [2020-07-20 04:04:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-07-20 04:04:07,908 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 416 [2020-07-20 04:04:07,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:07,910 INFO L225 Difference]: With dead ends: 429 [2020-07-20 04:04:07,910 INFO L226 Difference]: Without dead ends: 427 [2020-07-20 04:04:07,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1846, Invalid=2444, Unknown=0, NotChecked=0, Total=4290 [2020-07-20 04:04:07,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-07-20 04:04:07,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2020-07-20 04:04:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-07-20 04:04:07,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2020-07-20 04:04:07,917 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 416 [2020-07-20 04:04:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:07,917 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2020-07-20 04:04:07,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-07-20 04:04:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2020-07-20 04:04:07,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-07-20 04:04:07,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:07,920 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:08,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-07-20 04:04:08,121 INFO L427 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:08,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:08,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1308456168, now seen corresponding path program 59 times [2020-07-20 04:04:08,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:08,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364321356] [2020-07-20 04:04:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:10,483 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 04:04:10,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364321356] [2020-07-20 04:04:10,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589197774] [2020-07-20 04:04:10,483 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76879ecb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:10,595 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@76879ecb issued 4 check-sat command(s) [2020-07-20 04:04:10,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:10,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 63 conjunts are in the unsatisfiable core [2020-07-20 04:04:10,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:10,622 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:10,798 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 04:04:10,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:10,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 66 [2020-07-20 04:04:10,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283788593] [2020-07-20 04:04:10,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-07-20 04:04:10,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:10,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-07-20 04:04:10,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1901, Invalid=2389, Unknown=0, NotChecked=0, Total=4290 [2020-07-20 04:04:10,800 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand 66 states. [2020-07-20 04:04:11,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:11,912 INFO L93 Difference]: Finished difference Result 436 states and 436 transitions. [2020-07-20 04:04:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-07-20 04:04:11,913 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 423 [2020-07-20 04:04:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:11,915 INFO L225 Difference]: With dead ends: 436 [2020-07-20 04:04:11,916 INFO L226 Difference]: Without dead ends: 434 [2020-07-20 04:04:11,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1907, Invalid=2515, Unknown=0, NotChecked=0, Total=4422 [2020-07-20 04:04:11,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-07-20 04:04:11,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2020-07-20 04:04:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-07-20 04:04:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 433 transitions. [2020-07-20 04:04:11,925 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 433 transitions. Word has length 423 [2020-07-20 04:04:11,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:11,926 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 433 transitions. [2020-07-20 04:04:11,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-07-20 04:04:11,926 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 433 transitions. [2020-07-20 04:04:11,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2020-07-20 04:04:11,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:11,930 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:12,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-07-20 04:04:12,143 INFO L427 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:12,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:12,144 INFO L82 PathProgramCache]: Analyzing trace with hash -110433931, now seen corresponding path program 60 times [2020-07-20 04:04:12,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:12,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162848175] [2020-07-20 04:04:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:14,583 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 04:04:14,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162848175] [2020-07-20 04:04:14,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850507694] [2020-07-20 04:04:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@60e4e80 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 04:04:14,698 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@60e4e80 issued 4 check-sat command(s) [2020-07-20 04:04:14,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:14,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 64 conjunts are in the unsatisfiable core [2020-07-20 04:04:14,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:14,722 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:14,887 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 04:04:14,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:14,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 67 [2020-07-20 04:04:14,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585767928] [2020-07-20 04:04:14,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-07-20 04:04:14,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:14,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-07-20 04:04:14,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1963, Invalid=2459, Unknown=0, NotChecked=0, Total=4422 [2020-07-20 04:04:14,890 INFO L87 Difference]: Start difference. First operand 433 states and 433 transitions. Second operand 67 states. [2020-07-20 04:04:15,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:15,914 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2020-07-20 04:04:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-07-20 04:04:15,914 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 430 [2020-07-20 04:04:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:15,916 INFO L225 Difference]: With dead ends: 443 [2020-07-20 04:04:15,916 INFO L226 Difference]: Without dead ends: 441 [2020-07-20 04:04:15,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1969, Invalid=2587, Unknown=0, NotChecked=0, Total=4556 [2020-07-20 04:04:15,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-07-20 04:04:15,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2020-07-20 04:04:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-07-20 04:04:15,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 440 transitions. [2020-07-20 04:04:15,926 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 440 transitions. Word has length 430 [2020-07-20 04:04:15,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:15,926 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 440 transitions. [2020-07-20 04:04:15,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-07-20 04:04:15,926 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 440 transitions. [2020-07-20 04:04:15,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-07-20 04:04:15,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:15,929 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:16,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:16,143 INFO L427 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:16,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:16,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1220062280, now seen corresponding path program 61 times [2020-07-20 04:04:16,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:16,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384672678] [2020-07-20 04:04:16,144 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:18,677 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 04:04:18,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384672678] [2020-07-20 04:04:18,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930383657] [2020-07-20 04:04:18,678 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72774577 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:18,789 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72774577 issued 4 check-sat command(s) [2020-07-20 04:04:18,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:18,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 65 conjunts are in the unsatisfiable core [2020-07-20 04:04:18,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:18,814 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:18,974 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 04:04:18,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:18,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 68 [2020-07-20 04:04:18,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755849823] [2020-07-20 04:04:18,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-07-20 04:04:18,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:18,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-07-20 04:04:18,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2026, Invalid=2530, Unknown=0, NotChecked=0, Total=4556 [2020-07-20 04:04:18,976 INFO L87 Difference]: Start difference. First operand 440 states and 440 transitions. Second operand 68 states. [2020-07-20 04:04:20,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:20,016 INFO L93 Difference]: Finished difference Result 450 states and 450 transitions. [2020-07-20 04:04:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-07-20 04:04:20,017 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 437 [2020-07-20 04:04:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:20,019 INFO L225 Difference]: With dead ends: 450 [2020-07-20 04:04:20,019 INFO L226 Difference]: Without dead ends: 448 [2020-07-20 04:04:20,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2032, Invalid=2660, Unknown=0, NotChecked=0, Total=4692 [2020-07-20 04:04:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-07-20 04:04:20,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 447. [2020-07-20 04:04:20,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-07-20 04:04:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 447 transitions. [2020-07-20 04:04:20,030 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 447 transitions. Word has length 437 [2020-07-20 04:04:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:20,030 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 447 transitions. [2020-07-20 04:04:20,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-07-20 04:04:20,030 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 447 transitions. [2020-07-20 04:04:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-07-20 04:04:20,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:20,034 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:20,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:20,248 INFO L427 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:20,248 INFO L82 PathProgramCache]: Analyzing trace with hash -614160875, now seen corresponding path program 62 times [2020-07-20 04:04:20,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:20,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681578429] [2020-07-20 04:04:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:22,899 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 04:04:22,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681578429] [2020-07-20 04:04:22,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520845378] [2020-07-20 04:04:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4463221a 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 04:04:23,015 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4463221a issued 4 check-sat command(s) [2020-07-20 04:04:23,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:23,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 66 conjunts are in the unsatisfiable core [2020-07-20 04:04:23,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:23,040 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:23,228 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 04:04:23,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:23,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 69 [2020-07-20 04:04:23,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460893152] [2020-07-20 04:04:23,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-07-20 04:04:23,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:23,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-07-20 04:04:23,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2090, Invalid=2602, Unknown=0, NotChecked=0, Total=4692 [2020-07-20 04:04:23,230 INFO L87 Difference]: Start difference. First operand 447 states and 447 transitions. Second operand 69 states. [2020-07-20 04:04:24,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:24,264 INFO L93 Difference]: Finished difference Result 457 states and 457 transitions. [2020-07-20 04:04:24,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-20 04:04:24,265 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 444 [2020-07-20 04:04:24,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:24,268 INFO L225 Difference]: With dead ends: 457 [2020-07-20 04:04:24,268 INFO L226 Difference]: Without dead ends: 455 [2020-07-20 04:04:24,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2096, Invalid=2734, Unknown=0, NotChecked=0, Total=4830 [2020-07-20 04:04:24,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-07-20 04:04:24,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 454. [2020-07-20 04:04:24,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-07-20 04:04:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 454 transitions. [2020-07-20 04:04:24,278 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 454 transitions. Word has length 444 [2020-07-20 04:04:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:24,278 INFO L479 AbstractCegarLoop]: Abstraction has 454 states and 454 transitions. [2020-07-20 04:04:24,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-07-20 04:04:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 454 transitions. [2020-07-20 04:04:24,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-07-20 04:04:24,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:24,282 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:24,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:24,496 INFO L427 AbstractCegarLoop]: === Iteration 64 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:24,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:24,497 INFO L82 PathProgramCache]: Analyzing trace with hash 911178664, now seen corresponding path program 63 times [2020-07-20 04:04:24,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:24,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327810113] [2020-07-20 04:04:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:27,287 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 04:04:27,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327810113] [2020-07-20 04:04:27,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552137340] [2020-07-20 04:04:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7af72430 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:27,413 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7af72430 issued 4 check-sat command(s) [2020-07-20 04:04:27,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:27,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 67 conjunts are in the unsatisfiable core [2020-07-20 04:04:27,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:27,449 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:27,664 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 04:04:27,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:27,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 70 [2020-07-20 04:04:27,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592637944] [2020-07-20 04:04:27,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-07-20 04:04:27,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:27,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-07-20 04:04:27,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2155, Invalid=2675, Unknown=0, NotChecked=0, Total=4830 [2020-07-20 04:04:27,667 INFO L87 Difference]: Start difference. First operand 454 states and 454 transitions. Second operand 70 states. [2020-07-20 04:04:28,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:28,737 INFO L93 Difference]: Finished difference Result 464 states and 464 transitions. [2020-07-20 04:04:28,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-07-20 04:04:28,738 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 451 [2020-07-20 04:04:28,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:28,740 INFO L225 Difference]: With dead ends: 464 [2020-07-20 04:04:28,740 INFO L226 Difference]: Without dead ends: 462 [2020-07-20 04:04:28,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2161, Invalid=2809, Unknown=0, NotChecked=0, Total=4970 [2020-07-20 04:04:28,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-07-20 04:04:28,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2020-07-20 04:04:28,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-07-20 04:04:28,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 461 transitions. [2020-07-20 04:04:28,750 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 461 transitions. Word has length 451 [2020-07-20 04:04:28,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:28,751 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 461 transitions. [2020-07-20 04:04:28,751 INFO L480 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-07-20 04:04:28,751 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 461 transitions. [2020-07-20 04:04:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-07-20 04:04:28,754 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:28,755 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:28,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:28,969 INFO L427 AbstractCegarLoop]: === Iteration 65 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:28,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1597519179, now seen corresponding path program 64 times [2020-07-20 04:04:28,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:28,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234986639] [2020-07-20 04:04:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:31,908 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 04:04:31,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234986639] [2020-07-20 04:04:31,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143693482] [2020-07-20 04:04:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6788f66c 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 04:04:32,029 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6788f66c issued 4 check-sat command(s) [2020-07-20 04:04:32,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:32,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-20 04:04:32,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:32,056 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:32,231 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 04:04:32,232 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:32,232 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 71 [2020-07-20 04:04:32,232 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463840004] [2020-07-20 04:04:32,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-07-20 04:04:32,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:32,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-07-20 04:04:32,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2221, Invalid=2749, Unknown=0, NotChecked=0, Total=4970 [2020-07-20 04:04:32,234 INFO L87 Difference]: Start difference. First operand 461 states and 461 transitions. Second operand 71 states. [2020-07-20 04:04:33,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:33,388 INFO L93 Difference]: Finished difference Result 471 states and 471 transitions. [2020-07-20 04:04:33,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-07-20 04:04:33,389 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 458 [2020-07-20 04:04:33,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:33,391 INFO L225 Difference]: With dead ends: 471 [2020-07-20 04:04:33,392 INFO L226 Difference]: Without dead ends: 469 [2020-07-20 04:04:33,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2227, Invalid=2885, Unknown=0, NotChecked=0, Total=5112 [2020-07-20 04:04:33,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-20 04:04:33,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 468. [2020-07-20 04:04:33,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-07-20 04:04:33,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 468 transitions. [2020-07-20 04:04:33,400 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 468 transitions. Word has length 458 [2020-07-20 04:04:33,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:33,401 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 468 transitions. [2020-07-20 04:04:33,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-07-20 04:04:33,401 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 468 transitions. [2020-07-20 04:04:33,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-07-20 04:04:33,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:33,404 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:33,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:33,618 INFO L427 AbstractCegarLoop]: === Iteration 66 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:33,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1030233336, now seen corresponding path program 65 times [2020-07-20 04:04:33,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:33,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586226204] [2020-07-20 04:04:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:36,528 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 04:04:36,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586226204] [2020-07-20 04:04:36,528 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47897275] [2020-07-20 04:04:36,528 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@217eb114 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:36,651 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@217eb114 issued 4 check-sat command(s) [2020-07-20 04:04:36,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:36,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 69 conjunts are in the unsatisfiable core [2020-07-20 04:04:36,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:36,676 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:36,874 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 04:04:36,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:36,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 72 [2020-07-20 04:04:36,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645776297] [2020-07-20 04:04:36,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-07-20 04:04:36,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:36,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-07-20 04:04:36,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2288, Invalid=2824, Unknown=0, NotChecked=0, Total=5112 [2020-07-20 04:04:36,877 INFO L87 Difference]: Start difference. First operand 468 states and 468 transitions. Second operand 72 states. [2020-07-20 04:04:38,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:38,082 INFO L93 Difference]: Finished difference Result 478 states and 478 transitions. [2020-07-20 04:04:38,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-07-20 04:04:38,083 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 465 [2020-07-20 04:04:38,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:38,085 INFO L225 Difference]: With dead ends: 478 [2020-07-20 04:04:38,085 INFO L226 Difference]: Without dead ends: 476 [2020-07-20 04:04:38,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2294, Invalid=2962, Unknown=0, NotChecked=0, Total=5256 [2020-07-20 04:04:38,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-07-20 04:04:38,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2020-07-20 04:04:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-07-20 04:04:38,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2020-07-20 04:04:38,093 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 465 [2020-07-20 04:04:38,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:38,094 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2020-07-20 04:04:38,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-07-20 04:04:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2020-07-20 04:04:38,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-07-20 04:04:38,097 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:38,097 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:38,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-07-20 04:04:38,310 INFO L427 AbstractCegarLoop]: === Iteration 67 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:38,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:38,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1057073323, now seen corresponding path program 66 times [2020-07-20 04:04:38,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:38,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119634988] [2020-07-20 04:04:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:41,319 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 04:04:41,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119634988] [2020-07-20 04:04:41,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661293392] [2020-07-20 04:04:41,319 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4b829cc0 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 04:04:41,441 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4b829cc0 issued 4 check-sat command(s) [2020-07-20 04:04:41,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:41,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 70 conjunts are in the unsatisfiable core [2020-07-20 04:04:41,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:41,478 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:41,735 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 04:04:41,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:41,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 73 [2020-07-20 04:04:41,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366115345] [2020-07-20 04:04:41,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-07-20 04:04:41,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:41,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-07-20 04:04:41,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2356, Invalid=2900, Unknown=0, NotChecked=0, Total=5256 [2020-07-20 04:04:41,738 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand 73 states. [2020-07-20 04:04:42,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:42,933 INFO L93 Difference]: Finished difference Result 485 states and 485 transitions. [2020-07-20 04:04:42,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-07-20 04:04:42,934 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 472 [2020-07-20 04:04:42,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:42,936 INFO L225 Difference]: With dead ends: 485 [2020-07-20 04:04:42,936 INFO L226 Difference]: Without dead ends: 483 [2020-07-20 04:04:42,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2362, Invalid=3040, Unknown=0, NotChecked=0, Total=5402 [2020-07-20 04:04:42,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-07-20 04:04:42,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 482. [2020-07-20 04:04:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-07-20 04:04:42,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 482 transitions. [2020-07-20 04:04:42,947 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 482 transitions. Word has length 472 [2020-07-20 04:04:42,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:42,948 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 482 transitions. [2020-07-20 04:04:42,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-07-20 04:04:42,948 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 482 transitions. [2020-07-20 04:04:42,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-07-20 04:04:42,951 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:42,952 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:43,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-07-20 04:04:43,167 INFO L427 AbstractCegarLoop]: === Iteration 68 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:43,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:43,168 INFO L82 PathProgramCache]: Analyzing trace with hash 719839848, now seen corresponding path program 67 times [2020-07-20 04:04:43,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:43,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125552242] [2020-07-20 04:04:43,169 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:46,360 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 04:04:46,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125552242] [2020-07-20 04:04:46,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389292708] [2020-07-20 04:04:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@b97b5c0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:46,485 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@b97b5c0 issued 4 check-sat command(s) [2020-07-20 04:04:46,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:46,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 71 conjunts are in the unsatisfiable core [2020-07-20 04:04:46,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:46,513 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:46,701 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 04:04:46,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:46,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 74 [2020-07-20 04:04:46,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306504535] [2020-07-20 04:04:46,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-07-20 04:04:46,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:46,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-07-20 04:04:46,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2425, Invalid=2977, Unknown=0, NotChecked=0, Total=5402 [2020-07-20 04:04:46,704 INFO L87 Difference]: Start difference. First operand 482 states and 482 transitions. Second operand 74 states. [2020-07-20 04:04:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:47,808 INFO L93 Difference]: Finished difference Result 492 states and 492 transitions. [2020-07-20 04:04:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-07-20 04:04:47,809 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 479 [2020-07-20 04:04:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:47,813 INFO L225 Difference]: With dead ends: 492 [2020-07-20 04:04:47,813 INFO L226 Difference]: Without dead ends: 490 [2020-07-20 04:04:47,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2431, Invalid=3119, Unknown=0, NotChecked=0, Total=5550 [2020-07-20 04:04:47,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-07-20 04:04:47,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 489. [2020-07-20 04:04:47,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-07-20 04:04:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 489 transitions. [2020-07-20 04:04:47,824 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 489 transitions. Word has length 479 [2020-07-20 04:04:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:47,824 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 489 transitions. [2020-07-20 04:04:47,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-07-20 04:04:47,824 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 489 transitions. [2020-07-20 04:04:47,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-07-20 04:04:47,828 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:47,828 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:48,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:48,043 INFO L427 AbstractCegarLoop]: === Iteration 69 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:48,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1911704565, now seen corresponding path program 68 times [2020-07-20 04:04:48,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:48,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661746444] [2020-07-20 04:04:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:51,287 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 04:04:51,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661746444] [2020-07-20 04:04:51,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18128439] [2020-07-20 04:04:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b157d72 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 04:04:51,416 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b157d72 issued 4 check-sat command(s) [2020-07-20 04:04:51,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:51,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 72 conjunts are in the unsatisfiable core [2020-07-20 04:04:51,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:51,442 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:51,654 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 04:04:51,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:51,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 75 [2020-07-20 04:04:51,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250698103] [2020-07-20 04:04:51,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-07-20 04:04:51,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:51,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-07-20 04:04:51,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2495, Invalid=3055, Unknown=0, NotChecked=0, Total=5550 [2020-07-20 04:04:51,656 INFO L87 Difference]: Start difference. First operand 489 states and 489 transitions. Second operand 75 states. [2020-07-20 04:04:52,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:52,814 INFO L93 Difference]: Finished difference Result 499 states and 499 transitions. [2020-07-20 04:04:52,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-20 04:04:52,814 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 486 [2020-07-20 04:04:52,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:52,817 INFO L225 Difference]: With dead ends: 499 [2020-07-20 04:04:52,817 INFO L226 Difference]: Without dead ends: 497 [2020-07-20 04:04:52,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2501, Invalid=3199, Unknown=0, NotChecked=0, Total=5700 [2020-07-20 04:04:52,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-07-20 04:04:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 496. [2020-07-20 04:04:52,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-07-20 04:04:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 496 transitions. [2020-07-20 04:04:52,825 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 496 transitions. Word has length 486 [2020-07-20 04:04:52,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:52,826 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 496 transitions. [2020-07-20 04:04:52,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-07-20 04:04:52,826 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 496 transitions. [2020-07-20 04:04:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2020-07-20 04:04:52,829 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:52,829 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:53,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2020-07-20 04:04:53,043 INFO L427 AbstractCegarLoop]: === Iteration 70 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:53,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:53,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1642759736, now seen corresponding path program 69 times [2020-07-20 04:04:53,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:53,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20129015] [2020-07-20 04:04:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:04:56,458 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 04:04:56,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20129015] [2020-07-20 04:04:56,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030546376] [2020-07-20 04:04:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@778f0058 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:04:56,590 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@778f0058 issued 4 check-sat command(s) [2020-07-20 04:04:56,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:04:56,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 73 conjunts are in the unsatisfiable core [2020-07-20 04:04:56,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:04:56,616 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:04:56,814 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 04:04:56,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:04:56,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 76 [2020-07-20 04:04:56,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328412616] [2020-07-20 04:04:56,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-07-20 04:04:56,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:04:56,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-07-20 04:04:56,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2566, Invalid=3134, Unknown=0, NotChecked=0, Total=5700 [2020-07-20 04:04:56,817 INFO L87 Difference]: Start difference. First operand 496 states and 496 transitions. Second operand 76 states. [2020-07-20 04:04:57,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:04:57,968 INFO L93 Difference]: Finished difference Result 506 states and 506 transitions. [2020-07-20 04:04:57,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-07-20 04:04:57,969 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 493 [2020-07-20 04:04:57,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:04:57,972 INFO L225 Difference]: With dead ends: 506 [2020-07-20 04:04:57,972 INFO L226 Difference]: Without dead ends: 504 [2020-07-20 04:04:57,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2572, Invalid=3280, Unknown=0, NotChecked=0, Total=5852 [2020-07-20 04:04:57,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-07-20 04:04:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2020-07-20 04:04:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-07-20 04:04:57,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 503 transitions. [2020-07-20 04:04:57,982 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 503 transitions. Word has length 493 [2020-07-20 04:04:57,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:04:57,983 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 503 transitions. [2020-07-20 04:04:57,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-07-20 04:04:57,983 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 503 transitions. [2020-07-20 04:04:57,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-07-20 04:04:57,987 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:04:57,987 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 71, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:04:58,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-07-20 04:04:58,191 INFO L427 AbstractCegarLoop]: === Iteration 71 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:04:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:04:58,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1208854677, now seen corresponding path program 70 times [2020-07-20 04:04:58,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:04:58,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920803458] [2020-07-20 04:04:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:04:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:01,694 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 04:05:01,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920803458] [2020-07-20 04:05:01,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580532189] [2020-07-20 04:05:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7bd1c641 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 04:05:01,831 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7bd1c641 issued 4 check-sat command(s) [2020-07-20 04:05:01,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:01,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 74 conjunts are in the unsatisfiable core [2020-07-20 04:05:01,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:01,859 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:02,063 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 04:05:02,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:02,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 77 [2020-07-20 04:05:02,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639553596] [2020-07-20 04:05:02,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-07-20 04:05:02,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:02,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-07-20 04:05:02,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2638, Invalid=3214, Unknown=0, NotChecked=0, Total=5852 [2020-07-20 04:05:02,065 INFO L87 Difference]: Start difference. First operand 503 states and 503 transitions. Second operand 77 states. [2020-07-20 04:05:03,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:03,304 INFO L93 Difference]: Finished difference Result 513 states and 513 transitions. [2020-07-20 04:05:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-07-20 04:05:03,305 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 500 [2020-07-20 04:05:03,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:03,307 INFO L225 Difference]: With dead ends: 513 [2020-07-20 04:05:03,308 INFO L226 Difference]: Without dead ends: 511 [2020-07-20 04:05:03,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 641 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2644, Invalid=3362, Unknown=0, NotChecked=0, Total=6006 [2020-07-20 04:05:03,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-07-20 04:05:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 510. [2020-07-20 04:05:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-07-20 04:05:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 510 transitions. [2020-07-20 04:05:03,316 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 510 transitions. Word has length 500 [2020-07-20 04:05:03,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:03,316 INFO L479 AbstractCegarLoop]: Abstraction has 510 states and 510 transitions. [2020-07-20 04:05:03,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-07-20 04:05:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 510 transitions. [2020-07-20 04:05:03,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2020-07-20 04:05:03,319 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:03,319 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 72, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:03,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2020-07-20 04:05:03,521 INFO L427 AbstractCegarLoop]: === Iteration 72 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:03,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:03,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1669945048, now seen corresponding path program 71 times [2020-07-20 04:05:03,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:03,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734741904] [2020-07-20 04:05:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:07,271 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 04:05:07,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734741904] [2020-07-20 04:05:07,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525173865] [2020-07-20 04:05:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4db685af No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:07,402 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4db685af issued 4 check-sat command(s) [2020-07-20 04:05:07,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:07,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 75 conjunts are in the unsatisfiable core [2020-07-20 04:05:07,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:07,431 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:07,639 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 04:05:07,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:07,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 78 [2020-07-20 04:05:07,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409934251] [2020-07-20 04:05:07,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-07-20 04:05:07,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:07,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-07-20 04:05:07,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2711, Invalid=3295, Unknown=0, NotChecked=0, Total=6006 [2020-07-20 04:05:07,641 INFO L87 Difference]: Start difference. First operand 510 states and 510 transitions. Second operand 78 states. [2020-07-20 04:05:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:08,996 INFO L93 Difference]: Finished difference Result 520 states and 520 transitions. [2020-07-20 04:05:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-07-20 04:05:08,997 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 507 [2020-07-20 04:05:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:08,999 INFO L225 Difference]: With dead ends: 520 [2020-07-20 04:05:08,999 INFO L226 Difference]: Without dead ends: 518 [2020-07-20 04:05:09,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2717, Invalid=3445, Unknown=0, NotChecked=0, Total=6162 [2020-07-20 04:05:09,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-07-20 04:05:09,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 517. [2020-07-20 04:05:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-07-20 04:05:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 517 transitions. [2020-07-20 04:05:09,010 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 517 transitions. Word has length 507 [2020-07-20 04:05:09,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:09,011 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 517 transitions. [2020-07-20 04:05:09,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-07-20 04:05:09,011 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 517 transitions. [2020-07-20 04:05:09,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-07-20 04:05:09,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:09,016 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 73, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:09,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:09,231 INFO L427 AbstractCegarLoop]: === Iteration 73 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:09,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:09,232 INFO L82 PathProgramCache]: Analyzing trace with hash -700814027, now seen corresponding path program 72 times [2020-07-20 04:05:09,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:09,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403433311] [2020-07-20 04:05:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:12,935 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 04:05:12,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403433311] [2020-07-20 04:05:12,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571928212] [2020-07-20 04:05:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4f8ae314 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 04:05:13,071 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4f8ae314 issued 4 check-sat command(s) [2020-07-20 04:05:13,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:13,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 76 conjunts are in the unsatisfiable core [2020-07-20 04:05:13,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:13,099 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:13,335 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 04:05:13,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:13,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 79 [2020-07-20 04:05:13,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376045979] [2020-07-20 04:05:13,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-07-20 04:05:13,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:13,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-07-20 04:05:13,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2785, Invalid=3377, Unknown=0, NotChecked=0, Total=6162 [2020-07-20 04:05:13,337 INFO L87 Difference]: Start difference. First operand 517 states and 517 transitions. Second operand 79 states. [2020-07-20 04:05:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:14,583 INFO L93 Difference]: Finished difference Result 527 states and 527 transitions. [2020-07-20 04:05:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-07-20 04:05:14,584 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 514 [2020-07-20 04:05:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:14,587 INFO L225 Difference]: With dead ends: 527 [2020-07-20 04:05:14,588 INFO L226 Difference]: Without dead ends: 525 [2020-07-20 04:05:14,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2791, Invalid=3529, Unknown=0, NotChecked=0, Total=6320 [2020-07-20 04:05:14,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-07-20 04:05:14,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 524. [2020-07-20 04:05:14,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-07-20 04:05:14,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 524 transitions. [2020-07-20 04:05:14,597 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 524 transitions. Word has length 514 [2020-07-20 04:05:14,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:14,598 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 524 transitions. [2020-07-20 04:05:14,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-07-20 04:05:14,598 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 524 transitions. [2020-07-20 04:05:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-07-20 04:05:14,601 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:14,602 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 74, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:14,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:14,804 INFO L427 AbstractCegarLoop]: === Iteration 74 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:14,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1474392200, now seen corresponding path program 73 times [2020-07-20 04:05:14,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:14,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552534525] [2020-07-20 04:05:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:18,651 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 04:05:18,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552534525] [2020-07-20 04:05:18,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571278278] [2020-07-20 04:05:18,652 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@821fbb6 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:18,789 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@821fbb6 issued 4 check-sat command(s) [2020-07-20 04:05:18,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:18,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 77 conjunts are in the unsatisfiable core [2020-07-20 04:05:18,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:18,821 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:19,075 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 04:05:19,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:19,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 80 [2020-07-20 04:05:19,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727274005] [2020-07-20 04:05:19,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-07-20 04:05:19,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:19,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-07-20 04:05:19,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2860, Invalid=3460, Unknown=0, NotChecked=0, Total=6320 [2020-07-20 04:05:19,077 INFO L87 Difference]: Start difference. First operand 524 states and 524 transitions. Second operand 80 states. [2020-07-20 04:05:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:20,326 INFO L93 Difference]: Finished difference Result 534 states and 534 transitions. [2020-07-20 04:05:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-07-20 04:05:20,329 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 521 [2020-07-20 04:05:20,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:20,331 INFO L225 Difference]: With dead ends: 534 [2020-07-20 04:05:20,331 INFO L226 Difference]: Without dead ends: 532 [2020-07-20 04:05:20,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2866, Invalid=3614, Unknown=0, NotChecked=0, Total=6480 [2020-07-20 04:05:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-07-20 04:05:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 531. [2020-07-20 04:05:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-07-20 04:05:20,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 531 transitions. [2020-07-20 04:05:20,339 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 531 transitions. Word has length 521 [2020-07-20 04:05:20,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:20,340 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 531 transitions. [2020-07-20 04:05:20,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-07-20 04:05:20,340 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 531 transitions. [2020-07-20 04:05:20,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-07-20 04:05:20,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:20,343 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 75, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:20,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:20,544 INFO L427 AbstractCegarLoop]: === Iteration 75 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:20,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:20,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1306696149, now seen corresponding path program 74 times [2020-07-20 04:05:20,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:20,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732362005] [2020-07-20 04:05:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:24,518 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 04:05:24,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732362005] [2020-07-20 04:05:24,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713908057] [2020-07-20 04:05:24,519 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e92913f 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 04:05:24,658 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e92913f issued 4 check-sat command(s) [2020-07-20 04:05:24,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:24,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 78 conjunts are in the unsatisfiable core [2020-07-20 04:05:24,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:24,691 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:24,904 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 04:05:24,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:24,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 81 [2020-07-20 04:05:24,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247204032] [2020-07-20 04:05:24,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2020-07-20 04:05:24,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:24,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2020-07-20 04:05:24,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2936, Invalid=3544, Unknown=0, NotChecked=0, Total=6480 [2020-07-20 04:05:24,906 INFO L87 Difference]: Start difference. First operand 531 states and 531 transitions. Second operand 81 states. [2020-07-20 04:05:26,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:26,229 INFO L93 Difference]: Finished difference Result 541 states and 541 transitions. [2020-07-20 04:05:26,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-07-20 04:05:26,230 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 528 [2020-07-20 04:05:26,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:26,233 INFO L225 Difference]: With dead ends: 541 [2020-07-20 04:05:26,233 INFO L226 Difference]: Without dead ends: 539 [2020-07-20 04:05:26,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 677 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2942, Invalid=3700, Unknown=0, NotChecked=0, Total=6642 [2020-07-20 04:05:26,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-07-20 04:05:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2020-07-20 04:05:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-07-20 04:05:26,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2020-07-20 04:05:26,241 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 528 [2020-07-20 04:05:26,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:26,242 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2020-07-20 04:05:26,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 81 states. [2020-07-20 04:05:26,242 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2020-07-20 04:05:26,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-07-20 04:05:26,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:26,245 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 76, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:26,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2020-07-20 04:05:26,446 INFO L427 AbstractCegarLoop]: === Iteration 76 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:26,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:26,447 INFO L82 PathProgramCache]: Analyzing trace with hash 330026984, now seen corresponding path program 75 times [2020-07-20 04:05:26,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:26,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419554783] [2020-07-20 04:05:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:30,553 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 04:05:30,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419554783] [2020-07-20 04:05:30,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612155985] [2020-07-20 04:05:30,554 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a3e54bc No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:30,693 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1a3e54bc issued 4 check-sat command(s) [2020-07-20 04:05:30,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:30,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 79 conjunts are in the unsatisfiable core [2020-07-20 04:05:30,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:30,726 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:30,960 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 04:05:30,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:30,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 82 [2020-07-20 04:05:30,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331834945] [2020-07-20 04:05:30,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2020-07-20 04:05:30,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:30,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2020-07-20 04:05:30,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3013, Invalid=3629, Unknown=0, NotChecked=0, Total=6642 [2020-07-20 04:05:30,963 INFO L87 Difference]: Start difference. First operand 538 states and 538 transitions. Second operand 82 states. [2020-07-20 04:05:32,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:32,392 INFO L93 Difference]: Finished difference Result 548 states and 548 transitions. [2020-07-20 04:05:32,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-07-20 04:05:32,393 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 535 [2020-07-20 04:05:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:32,396 INFO L225 Difference]: With dead ends: 548 [2020-07-20 04:05:32,396 INFO L226 Difference]: Without dead ends: 546 [2020-07-20 04:05:32,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=3019, Invalid=3787, Unknown=0, NotChecked=0, Total=6806 [2020-07-20 04:05:32,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2020-07-20 04:05:32,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2020-07-20 04:05:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-07-20 04:05:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 545 transitions. [2020-07-20 04:05:32,405 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 545 transitions. Word has length 535 [2020-07-20 04:05:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:32,405 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 545 transitions. [2020-07-20 04:05:32,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 82 states. [2020-07-20 04:05:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 545 transitions. [2020-07-20 04:05:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-07-20 04:05:32,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:32,408 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 77, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:32,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:32,609 INFO L427 AbstractCegarLoop]: === Iteration 77 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:32,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:32,610 INFO L82 PathProgramCache]: Analyzing trace with hash 519057013, now seen corresponding path program 76 times [2020-07-20 04:05:32,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:32,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272191194] [2020-07-20 04:05:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:36,954 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 04:05:36,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272191194] [2020-07-20 04:05:36,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656949277] [2020-07-20 04:05:36,955 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@765261b6 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 04:05:37,156 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@765261b6 issued 4 check-sat command(s) [2020-07-20 04:05:37,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:37,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 80 conjunts are in the unsatisfiable core [2020-07-20 04:05:37,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:37,205 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:37,564 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 04:05:37,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:37,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 83 [2020-07-20 04:05:37,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370827834] [2020-07-20 04:05:37,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2020-07-20 04:05:37,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:37,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2020-07-20 04:05:37,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3091, Invalid=3715, Unknown=0, NotChecked=0, Total=6806 [2020-07-20 04:05:37,567 INFO L87 Difference]: Start difference. First operand 545 states and 545 transitions. Second operand 83 states. [2020-07-20 04:05:38,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:38,828 INFO L93 Difference]: Finished difference Result 555 states and 555 transitions. [2020-07-20 04:05:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-07-20 04:05:38,829 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 542 [2020-07-20 04:05:38,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:38,831 INFO L225 Difference]: With dead ends: 555 [2020-07-20 04:05:38,831 INFO L226 Difference]: Without dead ends: 553 [2020-07-20 04:05:38,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=3097, Invalid=3875, Unknown=0, NotChecked=0, Total=6972 [2020-07-20 04:05:38,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-07-20 04:05:38,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2020-07-20 04:05:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-07-20 04:05:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 552 transitions. [2020-07-20 04:05:38,840 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 552 transitions. Word has length 542 [2020-07-20 04:05:38,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:38,841 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 552 transitions. [2020-07-20 04:05:38,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 83 states. [2020-07-20 04:05:38,841 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 552 transitions. [2020-07-20 04:05:38,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2020-07-20 04:05:38,844 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:38,844 INFO L422 BasicCegarLoop]: trace histogram [78, 78, 78, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:39,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:39,045 INFO L427 AbstractCegarLoop]: === Iteration 78 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:39,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:39,046 INFO L82 PathProgramCache]: Analyzing trace with hash -2069117112, now seen corresponding path program 77 times [2020-07-20 04:05:39,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:39,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655912] [2020-07-20 04:05:39,047 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:43,447 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 04:05:43,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655912] [2020-07-20 04:05:43,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033334194] [2020-07-20 04:05:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@364e9d26 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:43,592 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@364e9d26 issued 4 check-sat command(s) [2020-07-20 04:05:43,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:43,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 81 conjunts are in the unsatisfiable core [2020-07-20 04:05:43,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:43,631 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:43,925 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 04:05:43,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:43,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 84 [2020-07-20 04:05:43,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616997063] [2020-07-20 04:05:43,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 84 states [2020-07-20 04:05:43,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:43,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2020-07-20 04:05:43,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3170, Invalid=3802, Unknown=0, NotChecked=0, Total=6972 [2020-07-20 04:05:43,927 INFO L87 Difference]: Start difference. First operand 552 states and 552 transitions. Second operand 84 states. [2020-07-20 04:05:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:45,387 INFO L93 Difference]: Finished difference Result 562 states and 562 transitions. [2020-07-20 04:05:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-07-20 04:05:45,388 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 549 [2020-07-20 04:05:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:45,392 INFO L225 Difference]: With dead ends: 562 [2020-07-20 04:05:45,392 INFO L226 Difference]: Without dead ends: 560 [2020-07-20 04:05:45,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3176, Invalid=3964, Unknown=0, NotChecked=0, Total=7140 [2020-07-20 04:05:45,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-07-20 04:05:45,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2020-07-20 04:05:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-20 04:05:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 559 transitions. [2020-07-20 04:05:45,401 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 559 transitions. Word has length 549 [2020-07-20 04:05:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:45,402 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 559 transitions. [2020-07-20 04:05:45,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 84 states. [2020-07-20 04:05:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 559 transitions. [2020-07-20 04:05:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-07-20 04:05:45,405 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:45,405 INFO L422 BasicCegarLoop]: trace histogram [79, 79, 79, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:45,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2020-07-20 04:05:45,606 INFO L427 AbstractCegarLoop]: === Iteration 79 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:45,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1748161771, now seen corresponding path program 78 times [2020-07-20 04:05:45,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:45,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879814438] [2020-07-20 04:05:45,608 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:50,191 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 04:05:50,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879814438] [2020-07-20 04:05:50,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903652959] [2020-07-20 04:05:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@26c864c0 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 04:05:50,341 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@26c864c0 issued 4 check-sat command(s) [2020-07-20 04:05:50,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:50,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 82 conjunts are in the unsatisfiable core [2020-07-20 04:05:50,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:50,373 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:50,628 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 04:05:50,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:50,629 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 85 [2020-07-20 04:05:50,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038013607] [2020-07-20 04:05:50,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2020-07-20 04:05:50,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:50,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2020-07-20 04:05:50,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3250, Invalid=3890, Unknown=0, NotChecked=0, Total=7140 [2020-07-20 04:05:50,631 INFO L87 Difference]: Start difference. First operand 559 states and 559 transitions. Second operand 85 states. [2020-07-20 04:05:52,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:52,106 INFO L93 Difference]: Finished difference Result 569 states and 569 transitions. [2020-07-20 04:05:52,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-07-20 04:05:52,107 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 556 [2020-07-20 04:05:52,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:52,110 INFO L225 Difference]: With dead ends: 569 [2020-07-20 04:05:52,110 INFO L226 Difference]: Without dead ends: 567 [2020-07-20 04:05:52,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3256, Invalid=4054, Unknown=0, NotChecked=0, Total=7310 [2020-07-20 04:05:52,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-07-20 04:05:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2020-07-20 04:05:52,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-07-20 04:05:52,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 566 transitions. [2020-07-20 04:05:52,140 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 566 transitions. Word has length 556 [2020-07-20 04:05:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:52,140 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 566 transitions. [2020-07-20 04:05:52,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 85 states. [2020-07-20 04:05:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 566 transitions. [2020-07-20 04:05:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-07-20 04:05:52,143 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:52,144 INFO L422 BasicCegarLoop]: trace histogram [80, 80, 80, 79, 79, 79, 79, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:52,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-07-20 04:05:52,345 INFO L427 AbstractCegarLoop]: === Iteration 80 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:52,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:52,345 INFO L82 PathProgramCache]: Analyzing trace with hash 825710248, now seen corresponding path program 79 times [2020-07-20 04:05:52,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:52,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854655147] [2020-07-20 04:05:52,346 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:05:57,012 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 04:05:57,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854655147] [2020-07-20 04:05:57,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542358406] [2020-07-20 04:05:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17c2509 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:57,165 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17c2509 issued 4 check-sat command(s) [2020-07-20 04:05:57,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:05:57,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 83 conjunts are in the unsatisfiable core [2020-07-20 04:05:57,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:05:57,194 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:05:57,444 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 04:05:57,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:05:57,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 86 [2020-07-20 04:05:57,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557701092] [2020-07-20 04:05:57,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 86 states [2020-07-20 04:05:57,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:05:57,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2020-07-20 04:05:57,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3331, Invalid=3979, Unknown=0, NotChecked=0, Total=7310 [2020-07-20 04:05:57,447 INFO L87 Difference]: Start difference. First operand 566 states and 566 transitions. Second operand 86 states. [2020-07-20 04:05:58,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:05:58,897 INFO L93 Difference]: Finished difference Result 576 states and 576 transitions. [2020-07-20 04:05:58,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-07-20 04:05:58,898 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 563 [2020-07-20 04:05:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:05:58,901 INFO L225 Difference]: With dead ends: 576 [2020-07-20 04:05:58,901 INFO L226 Difference]: Without dead ends: 574 [2020-07-20 04:05:58,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3337, Invalid=4145, Unknown=0, NotChecked=0, Total=7482 [2020-07-20 04:05:58,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-20 04:05:58,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 573. [2020-07-20 04:05:58,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-07-20 04:05:58,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 573 transitions. [2020-07-20 04:05:58,913 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 573 transitions. Word has length 563 [2020-07-20 04:05:58,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:05:58,913 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 573 transitions. [2020-07-20 04:05:58,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 86 states. [2020-07-20 04:05:58,913 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 573 transitions. [2020-07-20 04:05:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-07-20 04:05:58,916 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:05:58,917 INFO L422 BasicCegarLoop]: trace histogram [81, 81, 81, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:05:59,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:05:59,119 INFO L427 AbstractCegarLoop]: === Iteration 81 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:05:59,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:05:59,120 INFO L82 PathProgramCache]: Analyzing trace with hash -2057072715, now seen corresponding path program 80 times [2020-07-20 04:05:59,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:05:59,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721447176] [2020-07-20 04:05:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:05:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:04,029 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 04:06:04,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721447176] [2020-07-20 04:06:04,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640748079] [2020-07-20 04:06:04,029 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@b627170 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 04:06:04,183 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@b627170 issued 4 check-sat command(s) [2020-07-20 04:06:04,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:04,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 84 conjunts are in the unsatisfiable core [2020-07-20 04:06:04,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:04,214 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:04,498 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 04:06:04,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:04,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 87 [2020-07-20 04:06:04,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296473022] [2020-07-20 04:06:04,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2020-07-20 04:06:04,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:04,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2020-07-20 04:06:04,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3413, Invalid=4069, Unknown=0, NotChecked=0, Total=7482 [2020-07-20 04:06:04,500 INFO L87 Difference]: Start difference. First operand 573 states and 573 transitions. Second operand 87 states. [2020-07-20 04:06:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:06:05,959 INFO L93 Difference]: Finished difference Result 583 states and 583 transitions. [2020-07-20 04:06:05,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-07-20 04:06:05,960 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 570 [2020-07-20 04:06:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:06:05,964 INFO L225 Difference]: With dead ends: 583 [2020-07-20 04:06:05,964 INFO L226 Difference]: Without dead ends: 581 [2020-07-20 04:06:05,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3419, Invalid=4237, Unknown=0, NotChecked=0, Total=7656 [2020-07-20 04:06:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-07-20 04:06:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2020-07-20 04:06:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 04:06:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 580 transitions. [2020-07-20 04:06:05,974 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 580 transitions. Word has length 570 [2020-07-20 04:06:05,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:06:05,974 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 580 transitions. [2020-07-20 04:06:05,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 87 states. [2020-07-20 04:06:05,974 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 580 transitions. [2020-07-20 04:06:05,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-07-20 04:06:05,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:06:05,977 INFO L422 BasicCegarLoop]: trace histogram [82, 82, 82, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:06:06,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:06,178 INFO L427 AbstractCegarLoop]: === Iteration 82 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:06:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:06:06,179 INFO L82 PathProgramCache]: Analyzing trace with hash -786137592, now seen corresponding path program 81 times [2020-07-20 04:06:06,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:06:06,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621700257] [2020-07-20 04:06:06,180 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:06:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:11,210 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 04:06:11,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621700257] [2020-07-20 04:06:11,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308323596] [2020-07-20 04:06:11,210 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f95afd0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:11,362 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f95afd0 issued 4 check-sat command(s) [2020-07-20 04:06:11,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:11,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 85 conjunts are in the unsatisfiable core [2020-07-20 04:06:11,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:11,391 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:11,669 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 04:06:11,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:11,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 88 [2020-07-20 04:06:11,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121890290] [2020-07-20 04:06:11,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 88 states [2020-07-20 04:06:11,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:11,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2020-07-20 04:06:11,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3496, Invalid=4160, Unknown=0, NotChecked=0, Total=7656 [2020-07-20 04:06:11,672 INFO L87 Difference]: Start difference. First operand 580 states and 580 transitions. Second operand 88 states. [2020-07-20 04:06:13,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:06:13,237 INFO L93 Difference]: Finished difference Result 590 states and 590 transitions. [2020-07-20 04:06:13,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-07-20 04:06:13,238 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 577 [2020-07-20 04:06:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:06:13,242 INFO L225 Difference]: With dead ends: 590 [2020-07-20 04:06:13,242 INFO L226 Difference]: Without dead ends: 588 [2020-07-20 04:06:13,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3502, Invalid=4330, Unknown=0, NotChecked=0, Total=7832 [2020-07-20 04:06:13,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-07-20 04:06:13,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2020-07-20 04:06:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-07-20 04:06:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 587 transitions. [2020-07-20 04:06:13,253 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 587 transitions. Word has length 577 [2020-07-20 04:06:13,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:06:13,254 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 587 transitions. [2020-07-20 04:06:13,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 88 states. [2020-07-20 04:06:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 587 transitions. [2020-07-20 04:06:13,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2020-07-20 04:06:13,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:06:13,259 INFO L422 BasicCegarLoop]: trace histogram [83, 83, 83, 82, 82, 82, 82, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:06:13,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:13,466 INFO L427 AbstractCegarLoop]: === Iteration 83 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:06:13,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:06:13,467 INFO L82 PathProgramCache]: Analyzing trace with hash -753050539, now seen corresponding path program 82 times [2020-07-20 04:06:13,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:06:13,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130764253] [2020-07-20 04:06:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:06:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:18,517 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 04:06:18,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130764253] [2020-07-20 04:06:18,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733675983] [2020-07-20 04:06:18,518 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@649d4f25 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 04:06:18,674 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@649d4f25 issued 4 check-sat command(s) [2020-07-20 04:06:18,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:18,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 86 conjunts are in the unsatisfiable core [2020-07-20 04:06:18,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:18,708 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:18,993 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 04:06:18,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:18,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 89 [2020-07-20 04:06:18,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196140255] [2020-07-20 04:06:18,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2020-07-20 04:06:18,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:18,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2020-07-20 04:06:18,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3580, Invalid=4252, Unknown=0, NotChecked=0, Total=7832 [2020-07-20 04:06:18,995 INFO L87 Difference]: Start difference. First operand 587 states and 587 transitions. Second operand 89 states. [2020-07-20 04:06:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:06:20,585 INFO L93 Difference]: Finished difference Result 597 states and 597 transitions. [2020-07-20 04:06:20,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-07-20 04:06:20,586 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 584 [2020-07-20 04:06:20,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:06:20,589 INFO L225 Difference]: With dead ends: 597 [2020-07-20 04:06:20,589 INFO L226 Difference]: Without dead ends: 595 [2020-07-20 04:06:20,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3586, Invalid=4424, Unknown=0, NotChecked=0, Total=8010 [2020-07-20 04:06:20,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-07-20 04:06:20,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 594. [2020-07-20 04:06:20,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-07-20 04:06:20,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 594 transitions. [2020-07-20 04:06:20,598 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 594 transitions. Word has length 584 [2020-07-20 04:06:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:06:20,598 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 594 transitions. [2020-07-20 04:06:20,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 89 states. [2020-07-20 04:06:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 594 transitions. [2020-07-20 04:06:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-07-20 04:06:20,603 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:06:20,603 INFO L422 BasicCegarLoop]: trace histogram [84, 84, 84, 83, 83, 83, 83, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:06:20,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:20,818 INFO L427 AbstractCegarLoop]: === Iteration 84 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:06:20,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:06:20,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1379320472, now seen corresponding path program 83 times [2020-07-20 04:06:20,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:06:20,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537640279] [2020-07-20 04:06:20,820 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:06:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:26,051 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 04:06:26,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537640279] [2020-07-20 04:06:26,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226903145] [2020-07-20 04:06:26,052 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b714b38 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:26,205 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b714b38 issued 4 check-sat command(s) [2020-07-20 04:06:26,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:26,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 87 conjunts are in the unsatisfiable core [2020-07-20 04:06:26,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:26,245 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:26,536 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 04:06:26,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:26,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 90 [2020-07-20 04:06:26,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057330335] [2020-07-20 04:06:26,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 90 states [2020-07-20 04:06:26,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:26,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2020-07-20 04:06:26,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3665, Invalid=4345, Unknown=0, NotChecked=0, Total=8010 [2020-07-20 04:06:26,539 INFO L87 Difference]: Start difference. First operand 594 states and 594 transitions. Second operand 90 states. [2020-07-20 04:06:28,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:06:28,223 INFO L93 Difference]: Finished difference Result 604 states and 604 transitions. [2020-07-20 04:06:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-07-20 04:06:28,224 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 591 [2020-07-20 04:06:28,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:06:28,227 INFO L225 Difference]: With dead ends: 604 [2020-07-20 04:06:28,227 INFO L226 Difference]: Without dead ends: 602 [2020-07-20 04:06:28,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3671, Invalid=4519, Unknown=0, NotChecked=0, Total=8190 [2020-07-20 04:06:28,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-20 04:06:28,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2020-07-20 04:06:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-07-20 04:06:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 601 transitions. [2020-07-20 04:06:28,239 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 601 transitions. Word has length 591 [2020-07-20 04:06:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:06:28,239 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 601 transitions. [2020-07-20 04:06:28,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 90 states. [2020-07-20 04:06:28,240 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 601 transitions. [2020-07-20 04:06:28,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-07-20 04:06:28,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:06:28,245 INFO L422 BasicCegarLoop]: trace histogram [85, 85, 85, 84, 84, 84, 84, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:06:28,458 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:28,459 INFO L427 AbstractCegarLoop]: === Iteration 85 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:06:28,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:06:28,460 INFO L82 PathProgramCache]: Analyzing trace with hash 719622389, now seen corresponding path program 84 times [2020-07-20 04:06:28,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:06:28,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713584392] [2020-07-20 04:06:28,461 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:06:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:33,882 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 04:06:33,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713584392] [2020-07-20 04:06:33,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344778180] [2020-07-20 04:06:33,883 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@73b759da 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 04:06:34,042 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@73b759da issued 4 check-sat command(s) [2020-07-20 04:06:34,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:34,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 88 conjunts are in the unsatisfiable core [2020-07-20 04:06:34,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:34,074 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:34,355 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 04:06:34,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:34,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 91 [2020-07-20 04:06:34,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919608084] [2020-07-20 04:06:34,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2020-07-20 04:06:34,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:34,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2020-07-20 04:06:34,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3751, Invalid=4439, Unknown=0, NotChecked=0, Total=8190 [2020-07-20 04:06:34,358 INFO L87 Difference]: Start difference. First operand 601 states and 601 transitions. Second operand 91 states. [2020-07-20 04:06:35,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:06:35,971 INFO L93 Difference]: Finished difference Result 611 states and 611 transitions. [2020-07-20 04:06:35,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-07-20 04:06:35,973 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 598 [2020-07-20 04:06:35,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:06:35,976 INFO L225 Difference]: With dead ends: 611 [2020-07-20 04:06:35,976 INFO L226 Difference]: Without dead ends: 609 [2020-07-20 04:06:35,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 767 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3757, Invalid=4615, Unknown=0, NotChecked=0, Total=8372 [2020-07-20 04:06:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-20 04:06:35,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2020-07-20 04:06:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-07-20 04:06:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 608 transitions. [2020-07-20 04:06:35,988 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 608 transitions. Word has length 598 [2020-07-20 04:06:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:06:35,988 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 608 transitions. [2020-07-20 04:06:35,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 91 states. [2020-07-20 04:06:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 608 transitions. [2020-07-20 04:06:35,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-07-20 04:06:35,993 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:06:35,994 INFO L422 BasicCegarLoop]: trace histogram [86, 86, 86, 85, 85, 85, 85, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:06:36,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2020-07-20 04:06:36,207 INFO L427 AbstractCegarLoop]: === Iteration 86 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:06:36,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:06:36,208 INFO L82 PathProgramCache]: Analyzing trace with hash 33264840, now seen corresponding path program 85 times [2020-07-20 04:06:36,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:06:36,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974973718] [2020-07-20 04:06:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:06:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:41,818 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 04:06:41,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974973718] [2020-07-20 04:06:41,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190215710] [2020-07-20 04:06:41,819 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6800325e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:41,979 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6800325e issued 4 check-sat command(s) [2020-07-20 04:06:41,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:41,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 89 conjunts are in the unsatisfiable core [2020-07-20 04:06:41,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:42,010 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:42,314 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 04:06:42,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:42,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 92 [2020-07-20 04:06:42,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591983597] [2020-07-20 04:06:42,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 92 states [2020-07-20 04:06:42,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:42,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2020-07-20 04:06:42,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3838, Invalid=4534, Unknown=0, NotChecked=0, Total=8372 [2020-07-20 04:06:42,317 INFO L87 Difference]: Start difference. First operand 608 states and 608 transitions. Second operand 92 states. [2020-07-20 04:06:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:06:43,867 INFO L93 Difference]: Finished difference Result 618 states and 618 transitions. [2020-07-20 04:06:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-07-20 04:06:43,868 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 605 [2020-07-20 04:06:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:06:43,871 INFO L225 Difference]: With dead ends: 618 [2020-07-20 04:06:43,871 INFO L226 Difference]: Without dead ends: 616 [2020-07-20 04:06:43,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 867 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3844, Invalid=4712, Unknown=0, NotChecked=0, Total=8556 [2020-07-20 04:06:43,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-07-20 04:06:43,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2020-07-20 04:06:43,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-07-20 04:06:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 615 transitions. [2020-07-20 04:06:43,880 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 615 transitions. Word has length 605 [2020-07-20 04:06:43,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:06:43,881 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 615 transitions. [2020-07-20 04:06:43,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 92 states. [2020-07-20 04:06:43,881 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 615 transitions. [2020-07-20 04:06:43,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-07-20 04:06:43,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:06:43,885 INFO L422 BasicCegarLoop]: trace histogram [87, 87, 87, 86, 86, 86, 86, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:06:44,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:44,086 INFO L427 AbstractCegarLoop]: === Iteration 87 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:06:44,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:06:44,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1792856683, now seen corresponding path program 86 times [2020-07-20 04:06:44,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:06:44,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995735233] [2020-07-20 04:06:44,087 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:06:44,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:49,803 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 04:06:49,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995735233] [2020-07-20 04:06:49,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060372727] [2020-07-20 04:06:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c94da2e 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 04:06:49,964 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1c94da2e issued 4 check-sat command(s) [2020-07-20 04:06:49,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:49,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 90 conjunts are in the unsatisfiable core [2020-07-20 04:06:49,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:50,002 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:50,378 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 04:06:50,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:50,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 93 [2020-07-20 04:06:50,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331969116] [2020-07-20 04:06:50,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2020-07-20 04:06:50,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:50,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2020-07-20 04:06:50,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3926, Invalid=4630, Unknown=0, NotChecked=0, Total=8556 [2020-07-20 04:06:50,381 INFO L87 Difference]: Start difference. First operand 615 states and 615 transitions. Second operand 93 states. [2020-07-20 04:06:52,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:06:52,232 INFO L93 Difference]: Finished difference Result 625 states and 625 transitions. [2020-07-20 04:06:52,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2020-07-20 04:06:52,233 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 612 [2020-07-20 04:06:52,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:06:52,236 INFO L225 Difference]: With dead ends: 625 [2020-07-20 04:06:52,236 INFO L226 Difference]: Without dead ends: 623 [2020-07-20 04:06:52,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 785 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3932, Invalid=4810, Unknown=0, NotChecked=0, Total=8742 [2020-07-20 04:06:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-07-20 04:06:52,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 622. [2020-07-20 04:06:52,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-20 04:06:52,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 622 transitions. [2020-07-20 04:06:52,244 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 622 transitions. Word has length 612 [2020-07-20 04:06:52,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:06:52,245 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 622 transitions. [2020-07-20 04:06:52,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 93 states. [2020-07-20 04:06:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 622 transitions. [2020-07-20 04:06:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-07-20 04:06:52,249 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:06:52,249 INFO L422 BasicCegarLoop]: trace histogram [88, 88, 88, 87, 87, 87, 87, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:06:52,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-07-20 04:06:52,450 INFO L427 AbstractCegarLoop]: === Iteration 88 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:06:52,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:06:52,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1511097384, now seen corresponding path program 87 times [2020-07-20 04:06:52,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:06:52,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083615833] [2020-07-20 04:06:52,451 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:06:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:06:58,336 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 04:06:58,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083615833] [2020-07-20 04:06:58,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174865439] [2020-07-20 04:06:58,337 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@59d25b9b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:06:58,497 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@59d25b9b issued 4 check-sat command(s) [2020-07-20 04:06:58,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:06:58,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 91 conjunts are in the unsatisfiable core [2020-07-20 04:06:58,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:06:58,527 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:06:58,828 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 04:06:58,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:06:58,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 94 [2020-07-20 04:06:58,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262294534] [2020-07-20 04:06:58,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 94 states [2020-07-20 04:06:58,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:06:58,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2020-07-20 04:06:58,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4015, Invalid=4727, Unknown=0, NotChecked=0, Total=8742 [2020-07-20 04:06:58,831 INFO L87 Difference]: Start difference. First operand 622 states and 622 transitions. Second operand 94 states. [2020-07-20 04:07:00,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:07:00,705 INFO L93 Difference]: Finished difference Result 632 states and 632 transitions. [2020-07-20 04:07:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2020-07-20 04:07:00,706 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 619 [2020-07-20 04:07:00,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:07:00,710 INFO L225 Difference]: With dead ends: 632 [2020-07-20 04:07:00,711 INFO L226 Difference]: Without dead ends: 630 [2020-07-20 04:07:00,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=4021, Invalid=4909, Unknown=0, NotChecked=0, Total=8930 [2020-07-20 04:07:00,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-07-20 04:07:00,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 629. [2020-07-20 04:07:00,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-07-20 04:07:00,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 629 transitions. [2020-07-20 04:07:00,722 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 629 transitions. Word has length 619 [2020-07-20 04:07:00,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:07:00,723 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 629 transitions. [2020-07-20 04:07:00,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 94 states. [2020-07-20 04:07:00,723 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 629 transitions. [2020-07-20 04:07:00,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-07-20 04:07:00,728 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:07:00,729 INFO L422 BasicCegarLoop]: trace histogram [89, 89, 89, 88, 88, 88, 88, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:07:00,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2020-07-20 04:07:00,936 INFO L427 AbstractCegarLoop]: === Iteration 89 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:07:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:07:00,937 INFO L82 PathProgramCache]: Analyzing trace with hash 415445557, now seen corresponding path program 88 times [2020-07-20 04:07:00,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:07:00,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925543490] [2020-07-20 04:07:00,938 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:07:00,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:07,115 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 04:07:07,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925543490] [2020-07-20 04:07:07,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718229975] [2020-07-20 04:07:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@78649c64 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 04:07:07,282 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@78649c64 issued 4 check-sat command(s) [2020-07-20 04:07:07,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:07:07,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 92 conjunts are in the unsatisfiable core [2020-07-20 04:07:07,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:07:07,310 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:07:07,631 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 04:07:07,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:07:07,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 95 [2020-07-20 04:07:07,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232033520] [2020-07-20 04:07:07,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2020-07-20 04:07:07,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:07:07,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2020-07-20 04:07:07,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4105, Invalid=4825, Unknown=0, NotChecked=0, Total=8930 [2020-07-20 04:07:07,633 INFO L87 Difference]: Start difference. First operand 629 states and 629 transitions. Second operand 95 states. [2020-07-20 04:07:09,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:07:09,657 INFO L93 Difference]: Finished difference Result 639 states and 639 transitions. [2020-07-20 04:07:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2020-07-20 04:07:09,658 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 626 [2020-07-20 04:07:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:07:09,661 INFO L225 Difference]: With dead ends: 639 [2020-07-20 04:07:09,661 INFO L226 Difference]: Without dead ends: 637 [2020-07-20 04:07:09,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=4111, Invalid=5009, Unknown=0, NotChecked=0, Total=9120 [2020-07-20 04:07:09,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-07-20 04:07:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 636. [2020-07-20 04:07:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-07-20 04:07:09,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 636 transitions. [2020-07-20 04:07:09,673 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 636 transitions. Word has length 626 [2020-07-20 04:07:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:07:09,674 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 636 transitions. [2020-07-20 04:07:09,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 95 states. [2020-07-20 04:07:09,674 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 636 transitions. [2020-07-20 04:07:09,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2020-07-20 04:07:09,679 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:07:09,680 INFO L422 BasicCegarLoop]: trace histogram [90, 90, 90, 89, 89, 89, 89, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:07:09,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:09,894 INFO L427 AbstractCegarLoop]: === Iteration 90 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:07:09,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:07:09,895 INFO L82 PathProgramCache]: Analyzing trace with hash -203355256, now seen corresponding path program 89 times [2020-07-20 04:07:09,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:07:09,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022199891] [2020-07-20 04:07:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:07:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:16,238 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 04:07:16,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022199891] [2020-07-20 04:07:16,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633508889] [2020-07-20 04:07:16,239 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b48016a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:16,433 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3b48016a issued 4 check-sat command(s) [2020-07-20 04:07:16,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:07:16,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 93 conjunts are in the unsatisfiable core [2020-07-20 04:07:16,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:07:16,465 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:07:16,776 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 04:07:16,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:07:16,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 96 [2020-07-20 04:07:16,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138580707] [2020-07-20 04:07:16,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 96 states [2020-07-20 04:07:16,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:07:16,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2020-07-20 04:07:16,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4196, Invalid=4924, Unknown=0, NotChecked=0, Total=9120 [2020-07-20 04:07:16,779 INFO L87 Difference]: Start difference. First operand 636 states and 636 transitions. Second operand 96 states. [2020-07-20 04:07:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:07:18,487 INFO L93 Difference]: Finished difference Result 646 states and 646 transitions. [2020-07-20 04:07:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2020-07-20 04:07:18,488 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 633 [2020-07-20 04:07:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:07:18,492 INFO L225 Difference]: With dead ends: 646 [2020-07-20 04:07:18,492 INFO L226 Difference]: Without dead ends: 644 [2020-07-20 04:07:18,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 907 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4202, Invalid=5110, Unknown=0, NotChecked=0, Total=9312 [2020-07-20 04:07:18,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-20 04:07:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 643. [2020-07-20 04:07:18,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-07-20 04:07:18,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 643 transitions. [2020-07-20 04:07:18,504 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 643 transitions. Word has length 633 [2020-07-20 04:07:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:07:18,505 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 643 transitions. [2020-07-20 04:07:18,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 96 states. [2020-07-20 04:07:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 643 transitions. [2020-07-20 04:07:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-07-20 04:07:18,511 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:07:18,511 INFO L422 BasicCegarLoop]: trace histogram [91, 91, 91, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:07:18,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:18,726 INFO L427 AbstractCegarLoop]: === Iteration 91 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:07:18,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:07:18,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1529781973, now seen corresponding path program 90 times [2020-07-20 04:07:18,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:07:18,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377337068] [2020-07-20 04:07:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:07:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:25,291 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 04:07:25,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377337068] [2020-07-20 04:07:25,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320823649] [2020-07-20 04:07:25,291 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@12254442 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 04:07:25,465 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@12254442 issued 4 check-sat command(s) [2020-07-20 04:07:25,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:07:25,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 94 conjunts are in the unsatisfiable core [2020-07-20 04:07:25,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:07:25,516 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:07:25,851 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 04:07:25,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:07:25,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 97 [2020-07-20 04:07:25,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144712121] [2020-07-20 04:07:25,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2020-07-20 04:07:25,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:07:25,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2020-07-20 04:07:25,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4288, Invalid=5024, Unknown=0, NotChecked=0, Total=9312 [2020-07-20 04:07:25,853 INFO L87 Difference]: Start difference. First operand 643 states and 643 transitions. Second operand 97 states. [2020-07-20 04:07:27,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:07:27,789 INFO L93 Difference]: Finished difference Result 653 states and 653 transitions. [2020-07-20 04:07:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-07-20 04:07:27,790 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 640 [2020-07-20 04:07:27,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:07:27,793 INFO L225 Difference]: With dead ends: 653 [2020-07-20 04:07:27,793 INFO L226 Difference]: Without dead ends: 651 [2020-07-20 04:07:27,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=4294, Invalid=5212, Unknown=0, NotChecked=0, Total=9506 [2020-07-20 04:07:27,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-07-20 04:07:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 650. [2020-07-20 04:07:27,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-07-20 04:07:27,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 650 transitions. [2020-07-20 04:07:27,805 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 650 transitions. Word has length 640 [2020-07-20 04:07:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:07:27,805 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 650 transitions. [2020-07-20 04:07:27,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 97 states. [2020-07-20 04:07:27,806 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 650 transitions. [2020-07-20 04:07:27,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2020-07-20 04:07:27,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:07:27,809 INFO L422 BasicCegarLoop]: trace histogram [92, 92, 92, 91, 91, 91, 91, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:07:28,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:28,010 INFO L427 AbstractCegarLoop]: === Iteration 92 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:07:28,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:07:28,011 INFO L82 PathProgramCache]: Analyzing trace with hash 515910376, now seen corresponding path program 91 times [2020-07-20 04:07:28,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:07:28,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399264131] [2020-07-20 04:07:28,013 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:07:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:34,744 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 04:07:34,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399264131] [2020-07-20 04:07:34,745 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147089589] [2020-07-20 04:07:34,745 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75fec54b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:34,916 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75fec54b issued 4 check-sat command(s) [2020-07-20 04:07:34,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:07:34,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 95 conjunts are in the unsatisfiable core [2020-07-20 04:07:34,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:07:34,948 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:07:35,290 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 04:07:35,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:07:35,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 98 [2020-07-20 04:07:35,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403461084] [2020-07-20 04:07:35,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 98 states [2020-07-20 04:07:35,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:07:35,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2020-07-20 04:07:35,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4381, Invalid=5125, Unknown=0, NotChecked=0, Total=9506 [2020-07-20 04:07:35,294 INFO L87 Difference]: Start difference. First operand 650 states and 650 transitions. Second operand 98 states. [2020-07-20 04:07:37,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:07:37,154 INFO L93 Difference]: Finished difference Result 660 states and 660 transitions. [2020-07-20 04:07:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-07-20 04:07:37,157 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 647 [2020-07-20 04:07:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:07:37,161 INFO L225 Difference]: With dead ends: 660 [2020-07-20 04:07:37,161 INFO L226 Difference]: Without dead ends: 658 [2020-07-20 04:07:37,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 830 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=4387, Invalid=5315, Unknown=0, NotChecked=0, Total=9702 [2020-07-20 04:07:37,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-07-20 04:07:37,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 657. [2020-07-20 04:07:37,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-07-20 04:07:37,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 657 transitions. [2020-07-20 04:07:37,174 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 657 transitions. Word has length 647 [2020-07-20 04:07:37,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:07:37,175 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 657 transitions. [2020-07-20 04:07:37,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 98 states. [2020-07-20 04:07:37,175 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 657 transitions. [2020-07-20 04:07:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-07-20 04:07:37,178 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:07:37,179 INFO L422 BasicCegarLoop]: trace histogram [93, 93, 93, 92, 92, 92, 92, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:07:37,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,92 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:37,380 INFO L427 AbstractCegarLoop]: === Iteration 93 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:07:37,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:07:37,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1078948725, now seen corresponding path program 92 times [2020-07-20 04:07:37,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:07:37,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014461424] [2020-07-20 04:07:37,381 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:07:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:44,278 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 04:07:44,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014461424] [2020-07-20 04:07:44,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973134853] [2020-07-20 04:07:44,278 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@39f6d4af 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 04:07:44,452 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@39f6d4af issued 4 check-sat command(s) [2020-07-20 04:07:44,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:07:44,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 96 conjunts are in the unsatisfiable core [2020-07-20 04:07:44,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:07:44,515 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:07:44,856 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 04:07:44,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:07:44,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 99 [2020-07-20 04:07:44,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212263830] [2020-07-20 04:07:44,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2020-07-20 04:07:44,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:07:44,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2020-07-20 04:07:44,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4475, Invalid=5227, Unknown=0, NotChecked=0, Total=9702 [2020-07-20 04:07:44,860 INFO L87 Difference]: Start difference. First operand 657 states and 657 transitions. Second operand 99 states. [2020-07-20 04:07:47,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:07:47,244 INFO L93 Difference]: Finished difference Result 667 states and 667 transitions. [2020-07-20 04:07:47,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2020-07-20 04:07:47,245 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 654 [2020-07-20 04:07:47,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:07:47,249 INFO L225 Difference]: With dead ends: 667 [2020-07-20 04:07:47,249 INFO L226 Difference]: Without dead ends: 665 [2020-07-20 04:07:47,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=4481, Invalid=5419, Unknown=0, NotChecked=0, Total=9900 [2020-07-20 04:07:47,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-07-20 04:07:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2020-07-20 04:07:47,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2020-07-20 04:07:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 664 transitions. [2020-07-20 04:07:47,262 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 664 transitions. Word has length 654 [2020-07-20 04:07:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:07:47,262 INFO L479 AbstractCegarLoop]: Abstraction has 664 states and 664 transitions. [2020-07-20 04:07:47,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 99 states. [2020-07-20 04:07:47,262 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 664 transitions. [2020-07-20 04:07:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-07-20 04:07:47,266 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:07:47,267 INFO L422 BasicCegarLoop]: trace histogram [94, 94, 94, 93, 93, 93, 93, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:07:47,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:47,468 INFO L427 AbstractCegarLoop]: === Iteration 94 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:07:47,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:07:47,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1685790136, now seen corresponding path program 93 times [2020-07-20 04:07:47,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:07:47,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375481280] [2020-07-20 04:07:47,469 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:07:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:07:54,657 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 04:07:54,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375481280] [2020-07-20 04:07:54,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588098947] [2020-07-20 04:07:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@54a5f4d7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:54,833 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@54a5f4d7 issued 4 check-sat command(s) [2020-07-20 04:07:54,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:07:54,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 97 conjunts are in the unsatisfiable core [2020-07-20 04:07:54,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:07:54,866 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:07:55,207 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 04:07:55,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:07:55,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 100 [2020-07-20 04:07:55,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498472725] [2020-07-20 04:07:55,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 100 states [2020-07-20 04:07:55,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:07:55,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2020-07-20 04:07:55,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4570, Invalid=5330, Unknown=0, NotChecked=0, Total=9900 [2020-07-20 04:07:55,210 INFO L87 Difference]: Start difference. First operand 664 states and 664 transitions. Second operand 100 states. [2020-07-20 04:07:57,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:07:57,947 INFO L93 Difference]: Finished difference Result 674 states and 674 transitions. [2020-07-20 04:07:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2020-07-20 04:07:57,948 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 661 [2020-07-20 04:07:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:07:57,952 INFO L225 Difference]: With dead ends: 674 [2020-07-20 04:07:57,952 INFO L226 Difference]: Without dead ends: 672 [2020-07-20 04:07:57,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=4576, Invalid=5524, Unknown=0, NotChecked=0, Total=10100 [2020-07-20 04:07:57,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-07-20 04:07:57,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 671. [2020-07-20 04:07:57,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-07-20 04:07:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 671 transitions. [2020-07-20 04:07:57,964 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 671 transitions. Word has length 661 [2020-07-20 04:07:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:07:57,964 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 671 transitions. [2020-07-20 04:07:57,964 INFO L480 AbstractCegarLoop]: Interpolant automaton has 100 states. [2020-07-20 04:07:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 671 transitions. [2020-07-20 04:07:57,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-07-20 04:07:57,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:07:57,968 INFO L422 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:07:58,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,94 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:07:58,170 INFO L427 AbstractCegarLoop]: === Iteration 95 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:07:58,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:07:58,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1970294763, now seen corresponding path program 94 times [2020-07-20 04:07:58,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:07:58,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240411249] [2020-07-20 04:07:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:07:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:05,710 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 04:08:05,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240411249] [2020-07-20 04:08:05,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368130712] [2020-07-20 04:08:05,711 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@11509e1d 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 04:08:05,888 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@11509e1d issued 4 check-sat command(s) [2020-07-20 04:08:05,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:08:05,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 98 conjunts are in the unsatisfiable core [2020-07-20 04:08:05,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:08:05,919 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:08:06,291 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 04:08:06,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:08:06,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99] total 101 [2020-07-20 04:08:06,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024055314] [2020-07-20 04:08:06,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2020-07-20 04:08:06,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:08:06,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2020-07-20 04:08:06,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4666, Invalid=5434, Unknown=0, NotChecked=0, Total=10100 [2020-07-20 04:08:06,293 INFO L87 Difference]: Start difference. First operand 671 states and 671 transitions. Second operand 101 states. [2020-07-20 04:08:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:08:08,989 INFO L93 Difference]: Finished difference Result 681 states and 681 transitions. [2020-07-20 04:08:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2020-07-20 04:08:08,990 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 668 [2020-07-20 04:08:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:08:08,994 INFO L225 Difference]: With dead ends: 681 [2020-07-20 04:08:08,994 INFO L226 Difference]: Without dead ends: 679 [2020-07-20 04:08:08,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 857 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=4672, Invalid=5630, Unknown=0, NotChecked=0, Total=10302 [2020-07-20 04:08:08,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-07-20 04:08:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 678. [2020-07-20 04:08:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-07-20 04:08:09,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 678 transitions. [2020-07-20 04:08:09,008 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 678 transitions. Word has length 668 [2020-07-20 04:08:09,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:08:09,009 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 678 transitions. [2020-07-20 04:08:09,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 101 states. [2020-07-20 04:08:09,009 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 678 transitions. [2020-07-20 04:08:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2020-07-20 04:08:09,015 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:08:09,015 INFO L422 BasicCegarLoop]: trace histogram [96, 96, 96, 95, 95, 95, 95, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:08:09,215 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:08:09,216 INFO L427 AbstractCegarLoop]: === Iteration 96 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:08:09,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:08:09,217 INFO L82 PathProgramCache]: Analyzing trace with hash -58379864, now seen corresponding path program 95 times [2020-07-20 04:08:09,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:08:09,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298593455] [2020-07-20 04:08:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:08:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:16,967 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 04:08:16,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298593455] [2020-07-20 04:08:16,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245112353] [2020-07-20 04:08:16,967 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6db6d2d8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:08:17,147 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6db6d2d8 issued 4 check-sat command(s) [2020-07-20 04:08:17,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:08:17,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 99 conjunts are in the unsatisfiable core [2020-07-20 04:08:17,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:08:17,191 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:08:17,557 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 04:08:17,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:08:17,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 102 [2020-07-20 04:08:17,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357742715] [2020-07-20 04:08:17,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 102 states [2020-07-20 04:08:17,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:08:17,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2020-07-20 04:08:17,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4763, Invalid=5539, Unknown=0, NotChecked=0, Total=10302 [2020-07-20 04:08:17,559 INFO L87 Difference]: Start difference. First operand 678 states and 678 transitions. Second operand 102 states. [2020-07-20 04:08:20,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:08:20,763 INFO L93 Difference]: Finished difference Result 688 states and 688 transitions. [2020-07-20 04:08:20,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-07-20 04:08:20,764 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 675 [2020-07-20 04:08:20,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:08:20,766 INFO L225 Difference]: With dead ends: 688 [2020-07-20 04:08:20,766 INFO L226 Difference]: Without dead ends: 686 [2020-07-20 04:08:20,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=4769, Invalid=5737, Unknown=0, NotChecked=0, Total=10506 [2020-07-20 04:08:20,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-07-20 04:08:20,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 685. [2020-07-20 04:08:20,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-07-20 04:08:20,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 685 transitions. [2020-07-20 04:08:20,806 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 685 transitions. Word has length 675 [2020-07-20 04:08:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:08:20,807 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 685 transitions. [2020-07-20 04:08:20,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 102 states. [2020-07-20 04:08:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 685 transitions. [2020-07-20 04:08:20,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2020-07-20 04:08:20,812 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:08:20,812 INFO L422 BasicCegarLoop]: trace histogram [97, 97, 97, 96, 96, 96, 96, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:08:21,025 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:08:21,026 INFO L427 AbstractCegarLoop]: === Iteration 97 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:08:21,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:08:21,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2061063349, now seen corresponding path program 96 times [2020-07-20 04:08:21,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:08:21,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848487950] [2020-07-20 04:08:21,027 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:08:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:29,566 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 04:08:29,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848487950] [2020-07-20 04:08:29,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272130745] [2020-07-20 04:08:29,567 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5188a52 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 04:08:29,752 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5188a52 issued 4 check-sat command(s) [2020-07-20 04:08:29,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:08:29,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 100 conjunts are in the unsatisfiable core [2020-07-20 04:08:29,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:08:29,798 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:08:30,205 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 04:08:30,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:08:30,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101] total 103 [2020-07-20 04:08:30,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098300512] [2020-07-20 04:08:30,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2020-07-20 04:08:30,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:08:30,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2020-07-20 04:08:30,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4861, Invalid=5645, Unknown=0, NotChecked=0, Total=10506 [2020-07-20 04:08:30,208 INFO L87 Difference]: Start difference. First operand 685 states and 685 transitions. Second operand 103 states. [2020-07-20 04:08:33,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:08:33,423 INFO L93 Difference]: Finished difference Result 695 states and 695 transitions. [2020-07-20 04:08:33,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2020-07-20 04:08:33,424 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 682 [2020-07-20 04:08:33,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:08:33,427 INFO L225 Difference]: With dead ends: 695 [2020-07-20 04:08:33,427 INFO L226 Difference]: Without dead ends: 693 [2020-07-20 04:08:33,429 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 875 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=4867, Invalid=5845, Unknown=0, NotChecked=0, Total=10712 [2020-07-20 04:08:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-07-20 04:08:33,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2020-07-20 04:08:33,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-07-20 04:08:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 692 transitions. [2020-07-20 04:08:33,442 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 692 transitions. Word has length 682 [2020-07-20 04:08:33,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:08:33,443 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 692 transitions. [2020-07-20 04:08:33,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 103 states. [2020-07-20 04:08:33,443 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 692 transitions. [2020-07-20 04:08:33,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-07-20 04:08:33,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:08:33,450 INFO L422 BasicCegarLoop]: trace histogram [98, 98, 98, 97, 97, 97, 97, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:08:33,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2020-07-20 04:08:33,665 INFO L427 AbstractCegarLoop]: === Iteration 98 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:08:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:08:33,665 INFO L82 PathProgramCache]: Analyzing trace with hash 93788424, now seen corresponding path program 97 times [2020-07-20 04:08:33,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:08:33,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746947397] [2020-07-20 04:08:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:08:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:42,068 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 04:08:42,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746947397] [2020-07-20 04:08:42,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375838604] [2020-07-20 04:08:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3351c4e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:08:42,260 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3351c4e issued 4 check-sat command(s) [2020-07-20 04:08:42,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:08:42,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 101 conjunts are in the unsatisfiable core [2020-07-20 04:08:42,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:08:42,294 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:08:42,676 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 04:08:42,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:08:42,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 104 [2020-07-20 04:08:42,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426134311] [2020-07-20 04:08:42,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 104 states [2020-07-20 04:08:42,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:08:42,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2020-07-20 04:08:42,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4960, Invalid=5752, Unknown=0, NotChecked=0, Total=10712 [2020-07-20 04:08:42,679 INFO L87 Difference]: Start difference. First operand 692 states and 692 transitions. Second operand 104 states. [2020-07-20 04:08:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:08:46,008 INFO L93 Difference]: Finished difference Result 702 states and 702 transitions. [2020-07-20 04:08:46,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2020-07-20 04:08:46,010 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 689 [2020-07-20 04:08:46,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:08:46,012 INFO L225 Difference]: With dead ends: 702 [2020-07-20 04:08:46,013 INFO L226 Difference]: Without dead ends: 700 [2020-07-20 04:08:46,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 884 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=4966, Invalid=5954, Unknown=0, NotChecked=0, Total=10920 [2020-07-20 04:08:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-20 04:08:46,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 699. [2020-07-20 04:08:46,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-20 04:08:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 699 transitions. [2020-07-20 04:08:46,025 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 699 transitions. Word has length 689 [2020-07-20 04:08:46,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:08:46,025 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 699 transitions. [2020-07-20 04:08:46,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 104 states. [2020-07-20 04:08:46,025 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 699 transitions. [2020-07-20 04:08:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2020-07-20 04:08:46,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:08:46,029 INFO L422 BasicCegarLoop]: trace histogram [99, 99, 99, 98, 98, 98, 98, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:08:46,230 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:08:46,230 INFO L427 AbstractCegarLoop]: === Iteration 99 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:08:46,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:08:46,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1888903509, now seen corresponding path program 98 times [2020-07-20 04:08:46,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:08:46,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496512087] [2020-07-20 04:08:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:08:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:08:55,031 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 04:08:55,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496512087] [2020-07-20 04:08:55,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151181100] [2020-07-20 04:08:55,032 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57624957 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 04:08:55,217 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57624957 issued 4 check-sat command(s) [2020-07-20 04:08:55,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:08:55,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 102 conjunts are in the unsatisfiable core [2020-07-20 04:08:55,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:08:55,250 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:08:55,644 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 04:08:55,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:08:55,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103] total 105 [2020-07-20 04:08:55,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904260903] [2020-07-20 04:08:55,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2020-07-20 04:08:55,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:08:55,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2020-07-20 04:08:55,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5060, Invalid=5860, Unknown=0, NotChecked=0, Total=10920 [2020-07-20 04:08:55,647 INFO L87 Difference]: Start difference. First operand 699 states and 699 transitions. Second operand 105 states. [2020-07-20 04:08:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:08:58,786 INFO L93 Difference]: Finished difference Result 709 states and 709 transitions. [2020-07-20 04:08:58,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2020-07-20 04:08:58,788 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 696 [2020-07-20 04:08:58,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:08:58,792 INFO L225 Difference]: With dead ends: 709 [2020-07-20 04:08:58,793 INFO L226 Difference]: Without dead ends: 707 [2020-07-20 04:08:58,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 997 GetRequests, 893 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=5066, Invalid=6064, Unknown=0, NotChecked=0, Total=11130 [2020-07-20 04:08:58,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-07-20 04:08:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 706. [2020-07-20 04:08:58,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-07-20 04:08:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 706 transitions. [2020-07-20 04:08:58,809 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 706 transitions. Word has length 696 [2020-07-20 04:08:58,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:08:58,809 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 706 transitions. [2020-07-20 04:08:58,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 105 states. [2020-07-20 04:08:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 706 transitions. [2020-07-20 04:08:58,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-07-20 04:08:58,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:08:58,815 INFO L422 BasicCegarLoop]: trace histogram [100, 100, 100, 99, 99, 99, 99, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:08:59,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:08:59,016 INFO L427 AbstractCegarLoop]: === Iteration 100 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:08:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:08:59,017 INFO L82 PathProgramCache]: Analyzing trace with hash 202414184, now seen corresponding path program 99 times [2020-07-20 04:08:59,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:08:59,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819438820] [2020-07-20 04:08:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:08:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:08,383 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 04:09:08,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819438820] [2020-07-20 04:09:08,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879084954] [2020-07-20 04:09:08,384 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@672b7853 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:09:08,575 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@672b7853 issued 4 check-sat command(s) [2020-07-20 04:09:08,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:09:08,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 103 conjunts are in the unsatisfiable core [2020-07-20 04:09:08,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:09:08,610 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:09:09,029 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 04:09:09,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:09:09,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104] total 106 [2020-07-20 04:09:09,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442504033] [2020-07-20 04:09:09,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 106 states [2020-07-20 04:09:09,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:09:09,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2020-07-20 04:09:09,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5161, Invalid=5969, Unknown=0, NotChecked=0, Total=11130 [2020-07-20 04:09:09,032 INFO L87 Difference]: Start difference. First operand 706 states and 706 transitions. Second operand 106 states. [2020-07-20 04:09:12,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:09:12,209 INFO L93 Difference]: Finished difference Result 716 states and 716 transitions. [2020-07-20 04:09:12,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2020-07-20 04:09:12,211 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 703 [2020-07-20 04:09:12,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:09:12,214 INFO L225 Difference]: With dead ends: 716 [2020-07-20 04:09:12,215 INFO L226 Difference]: Without dead ends: 714 [2020-07-20 04:09:12,216 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=5167, Invalid=6175, Unknown=0, NotChecked=0, Total=11342 [2020-07-20 04:09:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-07-20 04:09:12,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2020-07-20 04:09:12,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-07-20 04:09:12,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 713 transitions. [2020-07-20 04:09:12,230 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 713 transitions. Word has length 703 [2020-07-20 04:09:12,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:09:12,231 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 713 transitions. [2020-07-20 04:09:12,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 106 states. [2020-07-20 04:09:12,231 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 713 transitions. [2020-07-20 04:09:12,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-07-20 04:09:12,239 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:09:12,239 INFO L422 BasicCegarLoop]: trace histogram [101, 101, 101, 100, 100, 100, 100, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:09:12,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2020-07-20 04:09:12,453 INFO L427 AbstractCegarLoop]: === Iteration 101 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:09:12,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:09:12,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1984899595, now seen corresponding path program 100 times [2020-07-20 04:09:12,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:09:12,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87904294] [2020-07-20 04:09:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:09:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:22,224 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 04:09:22,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87904294] [2020-07-20 04:09:22,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190489648] [2020-07-20 04:09:22,225 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d7d4b94 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 04:09:22,416 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d7d4b94 issued 4 check-sat command(s) [2020-07-20 04:09:22,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:09:22,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 104 conjunts are in the unsatisfiable core [2020-07-20 04:09:22,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:09:22,452 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:09:22,886 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 04:09:22,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:09:22,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105] total 107 [2020-07-20 04:09:22,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844709000] [2020-07-20 04:09:22,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2020-07-20 04:09:22,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:09:22,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2020-07-20 04:09:22,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5263, Invalid=6079, Unknown=0, NotChecked=0, Total=11342 [2020-07-20 04:09:22,890 INFO L87 Difference]: Start difference. First operand 713 states and 713 transitions. Second operand 107 states. [2020-07-20 04:09:26,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:09:26,910 INFO L93 Difference]: Finished difference Result 723 states and 723 transitions. [2020-07-20 04:09:26,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2020-07-20 04:09:26,912 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 710 [2020-07-20 04:09:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:09:26,915 INFO L225 Difference]: With dead ends: 723 [2020-07-20 04:09:26,915 INFO L226 Difference]: Without dead ends: 721 [2020-07-20 04:09:26,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 911 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=5269, Invalid=6287, Unknown=0, NotChecked=0, Total=11556 [2020-07-20 04:09:26,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-07-20 04:09:26,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 720. [2020-07-20 04:09:26,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-07-20 04:09:26,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 720 transitions. [2020-07-20 04:09:26,928 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 720 transitions. Word has length 710 [2020-07-20 04:09:26,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:09:26,928 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 720 transitions. [2020-07-20 04:09:26,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 107 states. [2020-07-20 04:09:26,929 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 720 transitions. [2020-07-20 04:09:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-07-20 04:09:26,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:09:26,935 INFO L422 BasicCegarLoop]: trace histogram [102, 102, 102, 101, 101, 101, 101, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:09:27,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-07-20 04:09:27,136 INFO L427 AbstractCegarLoop]: === Iteration 102 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:09:27,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:09:27,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1455927240, now seen corresponding path program 101 times [2020-07-20 04:09:27,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:09:27,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821534508] [2020-07-20 04:09:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:09:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:37,009 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 04:09:37,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821534508] [2020-07-20 04:09:37,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583950781] [2020-07-20 04:09:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@235cca39 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:09:37,202 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@235cca39 issued 4 check-sat command(s) [2020-07-20 04:09:37,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:09:37,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 105 conjunts are in the unsatisfiable core [2020-07-20 04:09:37,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:09:37,245 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:09:37,668 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 04:09:37,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:09:37,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106] total 108 [2020-07-20 04:09:37,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143839691] [2020-07-20 04:09:37,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 108 states [2020-07-20 04:09:37,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:09:37,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2020-07-20 04:09:37,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5366, Invalid=6190, Unknown=0, NotChecked=0, Total=11556 [2020-07-20 04:09:37,671 INFO L87 Difference]: Start difference. First operand 720 states and 720 transitions. Second operand 108 states. [2020-07-20 04:09:41,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:09:41,253 INFO L93 Difference]: Finished difference Result 730 states and 730 transitions. [2020-07-20 04:09:41,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2020-07-20 04:09:41,255 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 717 [2020-07-20 04:09:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:09:41,258 INFO L225 Difference]: With dead ends: 730 [2020-07-20 04:09:41,258 INFO L226 Difference]: Without dead ends: 728 [2020-07-20 04:09:41,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 920 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=5372, Invalid=6400, Unknown=0, NotChecked=0, Total=11772 [2020-07-20 04:09:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-07-20 04:09:41,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 727. [2020-07-20 04:09:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-07-20 04:09:41,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 727 transitions. [2020-07-20 04:09:41,273 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 727 transitions. Word has length 717 [2020-07-20 04:09:41,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:09:41,274 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 727 transitions. [2020-07-20 04:09:41,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 108 states. [2020-07-20 04:09:41,274 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 727 transitions. [2020-07-20 04:09:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2020-07-20 04:09:41,282 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:09:41,282 INFO L422 BasicCegarLoop]: trace histogram [103, 103, 103, 102, 102, 102, 102, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:09:41,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2020-07-20 04:09:41,497 INFO L427 AbstractCegarLoop]: === Iteration 103 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:09:41,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:09:41,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1116910229, now seen corresponding path program 102 times [2020-07-20 04:09:41,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:09:41,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043471789] [2020-07-20 04:09:41,499 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:09:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:09:52,103 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 04:09:52,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043471789] [2020-07-20 04:09:52,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957222520] [2020-07-20 04:09:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d36bcf9 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 04:09:52,300 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d36bcf9 issued 4 check-sat command(s) [2020-07-20 04:09:52,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:09:52,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 106 conjunts are in the unsatisfiable core [2020-07-20 04:09:52,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:09:52,333 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:09:52,785 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 04:09:52,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:09:52,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107] total 109 [2020-07-20 04:09:52,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499490934] [2020-07-20 04:09:52,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2020-07-20 04:09:52,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:09:52,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2020-07-20 04:09:52,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5470, Invalid=6302, Unknown=0, NotChecked=0, Total=11772 [2020-07-20 04:09:52,787 INFO L87 Difference]: Start difference. First operand 727 states and 727 transitions. Second operand 109 states. [2020-07-20 04:09:57,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:09:57,126 INFO L93 Difference]: Finished difference Result 737 states and 737 transitions. [2020-07-20 04:09:57,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2020-07-20 04:09:57,128 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 724 [2020-07-20 04:09:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:09:57,130 INFO L225 Difference]: With dead ends: 737 [2020-07-20 04:09:57,130 INFO L226 Difference]: Without dead ends: 735 [2020-07-20 04:09:57,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=5476, Invalid=6514, Unknown=0, NotChecked=0, Total=11990 [2020-07-20 04:09:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-20 04:09:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 734. [2020-07-20 04:09:57,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-07-20 04:09:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 734 transitions. [2020-07-20 04:09:57,144 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 734 transitions. Word has length 724 [2020-07-20 04:09:57,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:09:57,145 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 734 transitions. [2020-07-20 04:09:57,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 109 states. [2020-07-20 04:09:57,146 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 734 transitions. [2020-07-20 04:09:57,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-07-20 04:09:57,153 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:09:57,153 INFO L422 BasicCegarLoop]: trace histogram [104, 104, 104, 103, 103, 103, 103, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:09:57,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-07-20 04:09:57,368 INFO L427 AbstractCegarLoop]: === Iteration 104 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:09:57,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:09:57,368 INFO L82 PathProgramCache]: Analyzing trace with hash 2115133224, now seen corresponding path program 103 times [2020-07-20 04:09:57,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:09:57,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405240686] [2020-07-20 04:09:57,369 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:09:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:08,970 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 04:10:08,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405240686] [2020-07-20 04:10:08,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747910683] [2020-07-20 04:10:08,970 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@69dc39ff No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:10:09,160 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@69dc39ff issued 4 check-sat command(s) [2020-07-20 04:10:09,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:10:09,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 107 conjunts are in the unsatisfiable core [2020-07-20 04:10:09,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:10:09,193 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:10:09,625 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 04:10:09,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:10:09,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108] total 110 [2020-07-20 04:10:09,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443199758] [2020-07-20 04:10:09,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 110 states [2020-07-20 04:10:09,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:10:09,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2020-07-20 04:10:09,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5575, Invalid=6415, Unknown=0, NotChecked=0, Total=11990 [2020-07-20 04:10:09,628 INFO L87 Difference]: Start difference. First operand 734 states and 734 transitions. Second operand 110 states. [2020-07-20 04:10:13,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:10:13,639 INFO L93 Difference]: Finished difference Result 744 states and 744 transitions. [2020-07-20 04:10:13,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2020-07-20 04:10:13,643 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 731 [2020-07-20 04:10:13,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:10:13,646 INFO L225 Difference]: With dead ends: 744 [2020-07-20 04:10:13,646 INFO L226 Difference]: Without dead ends: 742 [2020-07-20 04:10:13,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 938 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=5581, Invalid=6629, Unknown=0, NotChecked=0, Total=12210 [2020-07-20 04:10:13,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-07-20 04:10:13,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 741. [2020-07-20 04:10:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-07-20 04:10:13,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 741 transitions. [2020-07-20 04:10:13,662 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 741 transitions. Word has length 731 [2020-07-20 04:10:13,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:10:13,663 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 741 transitions. [2020-07-20 04:10:13,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 110 states. [2020-07-20 04:10:13,663 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 741 transitions. [2020-07-20 04:10:13,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2020-07-20 04:10:13,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:10:13,671 INFO L422 BasicCegarLoop]: trace histogram [105, 105, 105, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:10:13,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-07-20 04:10:13,885 INFO L427 AbstractCegarLoop]: === Iteration 105 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:10:13,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:10:13,886 INFO L82 PathProgramCache]: Analyzing trace with hash 371586869, now seen corresponding path program 104 times [2020-07-20 04:10:13,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:10:13,886 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116933780] [2020-07-20 04:10:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:10:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:25,320 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 04:10:25,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116933780] [2020-07-20 04:10:25,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635588783] [2020-07-20 04:10:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e19acd0 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 04:10:25,522 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e19acd0 issued 4 check-sat command(s) [2020-07-20 04:10:25,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:10:25,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 108 conjunts are in the unsatisfiable core [2020-07-20 04:10:25,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:10:25,557 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:10:25,999 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 04:10:26,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:10:26,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109] total 111 [2020-07-20 04:10:26,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310287903] [2020-07-20 04:10:26,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2020-07-20 04:10:26,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:10:26,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2020-07-20 04:10:26,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5681, Invalid=6529, Unknown=0, NotChecked=0, Total=12210 [2020-07-20 04:10:26,002 INFO L87 Difference]: Start difference. First operand 741 states and 741 transitions. Second operand 111 states. [2020-07-20 04:10:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:10:30,209 INFO L93 Difference]: Finished difference Result 751 states and 751 transitions. [2020-07-20 04:10:30,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2020-07-20 04:10:30,211 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 738 [2020-07-20 04:10:30,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:10:30,213 INFO L225 Difference]: With dead ends: 751 [2020-07-20 04:10:30,213 INFO L226 Difference]: Without dead ends: 749 [2020-07-20 04:10:30,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=5687, Invalid=6745, Unknown=0, NotChecked=0, Total=12432 [2020-07-20 04:10:30,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-07-20 04:10:30,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 748. [2020-07-20 04:10:30,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-07-20 04:10:30,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 748 transitions. [2020-07-20 04:10:30,226 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 748 transitions. Word has length 738 [2020-07-20 04:10:30,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:10:30,227 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 748 transitions. [2020-07-20 04:10:30,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 111 states. [2020-07-20 04:10:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 748 transitions. [2020-07-20 04:10:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-07-20 04:10:30,234 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:10:30,234 INFO L422 BasicCegarLoop]: trace histogram [106, 106, 106, 105, 105, 105, 105, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:10:30,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2020-07-20 04:10:30,447 INFO L427 AbstractCegarLoop]: === Iteration 106 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:10:30,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:10:30,448 INFO L82 PathProgramCache]: Analyzing trace with hash -876173688, now seen corresponding path program 105 times [2020-07-20 04:10:30,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:10:30,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407674536] [2020-07-20 04:10:30,449 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:10:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:42,790 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 04:10:42,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407674536] [2020-07-20 04:10:42,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826397800] [2020-07-20 04:10:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@250a9da5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:10:42,987 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@250a9da5 issued 4 check-sat command(s) [2020-07-20 04:10:42,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:10:42,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 109 conjunts are in the unsatisfiable core [2020-07-20 04:10:42,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:10:43,021 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:10:43,480 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 04:10:43,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:10:43,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 110] total 112 [2020-07-20 04:10:43,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55825299] [2020-07-20 04:10:43,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 112 states [2020-07-20 04:10:43,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:10:43,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2020-07-20 04:10:43,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5788, Invalid=6644, Unknown=0, NotChecked=0, Total=12432 [2020-07-20 04:10:43,484 INFO L87 Difference]: Start difference. First operand 748 states and 748 transitions. Second operand 112 states. [2020-07-20 04:10:47,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:10:47,456 INFO L93 Difference]: Finished difference Result 758 states and 758 transitions. [2020-07-20 04:10:47,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-07-20 04:10:47,457 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 745 [2020-07-20 04:10:47,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:10:47,460 INFO L225 Difference]: With dead ends: 758 [2020-07-20 04:10:47,460 INFO L226 Difference]: Without dead ends: 756 [2020-07-20 04:10:47,461 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=5794, Invalid=6862, Unknown=0, NotChecked=0, Total=12656 [2020-07-20 04:10:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-07-20 04:10:47,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 755. [2020-07-20 04:10:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-07-20 04:10:47,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 755 transitions. [2020-07-20 04:10:47,469 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 755 transitions. Word has length 745 [2020-07-20 04:10:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:10:47,470 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 755 transitions. [2020-07-20 04:10:47,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 112 states. [2020-07-20 04:10:47,470 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 755 transitions. [2020-07-20 04:10:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2020-07-20 04:10:47,474 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:10:47,474 INFO L422 BasicCegarLoop]: trace histogram [107, 107, 107, 106, 106, 106, 106, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:10:47,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-07-20 04:10:47,676 INFO L427 AbstractCegarLoop]: === Iteration 107 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:10:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:10:47,676 INFO L82 PathProgramCache]: Analyzing trace with hash 500474837, now seen corresponding path program 106 times [2020-07-20 04:10:47,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:10:47,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599851040] [2020-07-20 04:10:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:10:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:10:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:00,188 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 04:11:00,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599851040] [2020-07-20 04:11:00,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101125698] [2020-07-20 04:11:00,189 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6aa17fe4 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 04:11:00,397 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6aa17fe4 issued 4 check-sat command(s) [2020-07-20 04:11:00,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:11:00,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 110 conjunts are in the unsatisfiable core [2020-07-20 04:11:00,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:11:00,440 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:11:00,942 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 04:11:00,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:11:00,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 111] total 113 [2020-07-20 04:11:00,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980521736] [2020-07-20 04:11:00,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2020-07-20 04:11:00,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:11:00,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2020-07-20 04:11:00,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5896, Invalid=6760, Unknown=0, NotChecked=0, Total=12656 [2020-07-20 04:11:00,945 INFO L87 Difference]: Start difference. First operand 755 states and 755 transitions. Second operand 113 states. [2020-07-20 04:11:05,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:11:05,079 INFO L93 Difference]: Finished difference Result 765 states and 765 transitions. [2020-07-20 04:11:05,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2020-07-20 04:11:05,080 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 752 [2020-07-20 04:11:05,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:11:05,084 INFO L225 Difference]: With dead ends: 765 [2020-07-20 04:11:05,084 INFO L226 Difference]: Without dead ends: 763 [2020-07-20 04:11:05,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=5902, Invalid=6980, Unknown=0, NotChecked=0, Total=12882 [2020-07-20 04:11:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-07-20 04:11:05,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 762. [2020-07-20 04:11:05,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-07-20 04:11:05,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 762 transitions. [2020-07-20 04:11:05,100 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 762 transitions. Word has length 752 [2020-07-20 04:11:05,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:11:05,101 INFO L479 AbstractCegarLoop]: Abstraction has 762 states and 762 transitions. [2020-07-20 04:11:05,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 113 states. [2020-07-20 04:11:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 762 transitions. [2020-07-20 04:11:05,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-07-20 04:11:05,109 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:11:05,109 INFO L422 BasicCegarLoop]: trace histogram [108, 108, 108, 107, 107, 107, 107, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:11:05,322 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:11:05,323 INFO L427 AbstractCegarLoop]: === Iteration 108 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:11:05,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:11:05,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1690663448, now seen corresponding path program 107 times [2020-07-20 04:11:05,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:11:05,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762873814] [2020-07-20 04:11:05,324 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:11:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:18,222 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 04:11:18,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762873814] [2020-07-20 04:11:18,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191674912] [2020-07-20 04:11:18,223 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2023bd47 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:11:18,431 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2023bd47 issued 4 check-sat command(s) [2020-07-20 04:11:18,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:11:18,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 111 conjunts are in the unsatisfiable core [2020-07-20 04:11:18,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:11:18,465 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:11:19,002 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 04:11:19,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:11:19,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112] total 114 [2020-07-20 04:11:19,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491343653] [2020-07-20 04:11:19,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 114 states [2020-07-20 04:11:19,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:11:19,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2020-07-20 04:11:19,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6005, Invalid=6877, Unknown=0, NotChecked=0, Total=12882 [2020-07-20 04:11:19,006 INFO L87 Difference]: Start difference. First operand 762 states and 762 transitions. Second operand 114 states. [2020-07-20 04:11:23,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:11:23,032 INFO L93 Difference]: Finished difference Result 772 states and 772 transitions. [2020-07-20 04:11:23,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2020-07-20 04:11:23,035 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 759 [2020-07-20 04:11:23,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:11:23,038 INFO L225 Difference]: With dead ends: 772 [2020-07-20 04:11:23,038 INFO L226 Difference]: Without dead ends: 770 [2020-07-20 04:11:23,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 974 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=6011, Invalid=7099, Unknown=0, NotChecked=0, Total=13110 [2020-07-20 04:11:23,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-07-20 04:11:23,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 769. [2020-07-20 04:11:23,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-07-20 04:11:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 769 transitions. [2020-07-20 04:11:23,049 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 769 transitions. Word has length 759 [2020-07-20 04:11:23,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:11:23,049 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 769 transitions. [2020-07-20 04:11:23,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 114 states. [2020-07-20 04:11:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 769 transitions. [2020-07-20 04:11:23,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2020-07-20 04:11:23,055 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:11:23,055 INFO L422 BasicCegarLoop]: trace histogram [109, 109, 109, 108, 108, 108, 108, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:11:23,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2020-07-20 04:11:23,256 INFO L427 AbstractCegarLoop]: === Iteration 109 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:11:23,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:11:23,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1316439947, now seen corresponding path program 108 times [2020-07-20 04:11:23,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:11:23,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925243646] [2020-07-20 04:11:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:11:23,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:36,703 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 04:11:36,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925243646] [2020-07-20 04:11:36,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577255671] [2020-07-20 04:11:36,703 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@115de42a 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 04:11:36,904 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@115de42a issued 4 check-sat command(s) [2020-07-20 04:11:36,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:11:36,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 112 conjunts are in the unsatisfiable core [2020-07-20 04:11:36,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:11:36,937 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:11:37,475 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 04:11:37,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:11:37,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113] total 115 [2020-07-20 04:11:37,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651856716] [2020-07-20 04:11:37,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 115 states [2020-07-20 04:11:37,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:11:37,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2020-07-20 04:11:37,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6115, Invalid=6995, Unknown=0, NotChecked=0, Total=13110 [2020-07-20 04:11:37,479 INFO L87 Difference]: Start difference. First operand 769 states and 769 transitions. Second operand 115 states. [2020-07-20 04:11:41,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:11:41,193 INFO L93 Difference]: Finished difference Result 779 states and 779 transitions. [2020-07-20 04:11:41,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2020-07-20 04:11:41,195 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 766 [2020-07-20 04:11:41,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:11:41,199 INFO L225 Difference]: With dead ends: 779 [2020-07-20 04:11:41,199 INFO L226 Difference]: Without dead ends: 777 [2020-07-20 04:11:41,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=6121, Invalid=7219, Unknown=0, NotChecked=0, Total=13340 [2020-07-20 04:11:41,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-07-20 04:11:41,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 776. [2020-07-20 04:11:41,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-07-20 04:11:41,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 776 transitions. [2020-07-20 04:11:41,218 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 776 transitions. Word has length 766 [2020-07-20 04:11:41,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:11:41,219 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 776 transitions. [2020-07-20 04:11:41,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 115 states. [2020-07-20 04:11:41,219 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 776 transitions. [2020-07-20 04:11:41,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2020-07-20 04:11:41,229 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:11:41,229 INFO L422 BasicCegarLoop]: trace histogram [110, 110, 110, 109, 109, 109, 109, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:11:41,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:11:41,444 INFO L427 AbstractCegarLoop]: === Iteration 110 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:11:41,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:11:41,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1186726584, now seen corresponding path program 109 times [2020-07-20 04:11:41,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:11:41,445 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656663793] [2020-07-20 04:11:41,445 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:11:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:11:54,611 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 04:11:54,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656663793] [2020-07-20 04:11:54,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715259767] [2020-07-20 04:11:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4875e94e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:11:54,824 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4875e94e issued 4 check-sat command(s) [2020-07-20 04:11:54,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:11:54,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 113 conjunts are in the unsatisfiable core [2020-07-20 04:11:54,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:11:54,860 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:11:55,436 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 04:11:55,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:11:55,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 114] total 116 [2020-07-20 04:11:55,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483867219] [2020-07-20 04:11:55,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 116 states [2020-07-20 04:11:55,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:11:55,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2020-07-20 04:11:55,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6226, Invalid=7114, Unknown=0, NotChecked=0, Total=13340 [2020-07-20 04:11:55,439 INFO L87 Difference]: Start difference. First operand 776 states and 776 transitions. Second operand 116 states. [2020-07-20 04:11:59,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:11:59,278 INFO L93 Difference]: Finished difference Result 786 states and 786 transitions. [2020-07-20 04:11:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2020-07-20 04:11:59,280 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 773 [2020-07-20 04:11:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:11:59,284 INFO L225 Difference]: With dead ends: 786 [2020-07-20 04:11:59,284 INFO L226 Difference]: Without dead ends: 784 [2020-07-20 04:11:59,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=6232, Invalid=7340, Unknown=0, NotChecked=0, Total=13572 [2020-07-20 04:11:59,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-07-20 04:11:59,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 783. [2020-07-20 04:11:59,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-07-20 04:11:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 783 transitions. [2020-07-20 04:11:59,296 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 783 transitions. Word has length 773 [2020-07-20 04:11:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:11:59,296 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 783 transitions. [2020-07-20 04:11:59,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 116 states. [2020-07-20 04:11:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 783 transitions. [2020-07-20 04:11:59,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-07-20 04:11:59,301 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:11:59,301 INFO L422 BasicCegarLoop]: trace histogram [111, 111, 111, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:11:59,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2020-07-20 04:11:59,502 INFO L427 AbstractCegarLoop]: === Iteration 111 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:11:59,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:11:59,503 INFO L82 PathProgramCache]: Analyzing trace with hash 128726293, now seen corresponding path program 110 times [2020-07-20 04:11:59,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:11:59,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584480498] [2020-07-20 04:11:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:11:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:13,870 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 04:12:13,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584480498] [2020-07-20 04:12:13,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735548744] [2020-07-20 04:12:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8f68ca3 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 04:12:14,079 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8f68ca3 issued 4 check-sat command(s) [2020-07-20 04:12:14,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:12:14,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 114 conjunts are in the unsatisfiable core [2020-07-20 04:12:14,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:12:14,118 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:12:14,686 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 04:12:14,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:12:14,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 115] total 117 [2020-07-20 04:12:14,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667614227] [2020-07-20 04:12:14,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 117 states [2020-07-20 04:12:14,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:12:14,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2020-07-20 04:12:14,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6338, Invalid=7234, Unknown=0, NotChecked=0, Total=13572 [2020-07-20 04:12:14,689 INFO L87 Difference]: Start difference. First operand 783 states and 783 transitions. Second operand 117 states. [2020-07-20 04:12:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:12:18,529 INFO L93 Difference]: Finished difference Result 793 states and 793 transitions. [2020-07-20 04:12:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2020-07-20 04:12:18,531 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 780 [2020-07-20 04:12:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:12:18,533 INFO L225 Difference]: With dead ends: 793 [2020-07-20 04:12:18,533 INFO L226 Difference]: Without dead ends: 791 [2020-07-20 04:12:18,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1117 GetRequests, 1001 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=6344, Invalid=7462, Unknown=0, NotChecked=0, Total=13806 [2020-07-20 04:12:18,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-07-20 04:12:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 790. [2020-07-20 04:12:18,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-07-20 04:12:18,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 790 transitions. [2020-07-20 04:12:18,546 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 790 transitions. Word has length 780 [2020-07-20 04:12:18,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:12:18,546 INFO L479 AbstractCegarLoop]: Abstraction has 790 states and 790 transitions. [2020-07-20 04:12:18,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 117 states. [2020-07-20 04:12:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 790 transitions. [2020-07-20 04:12:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-07-20 04:12:18,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:12:18,553 INFO L422 BasicCegarLoop]: trace histogram [112, 112, 112, 111, 111, 111, 111, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:12:18,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,111 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:12:18,754 INFO L427 AbstractCegarLoop]: === Iteration 112 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:12:18,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:12:18,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1002894168, now seen corresponding path program 111 times [2020-07-20 04:12:18,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:12:18,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967047470] [2020-07-20 04:12:18,755 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:12:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:33,595 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 04:12:33,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967047470] [2020-07-20 04:12:33,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138481920] [2020-07-20 04:12:33,596 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d1783d8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:12:33,818 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5d1783d8 issued 4 check-sat command(s) [2020-07-20 04:12:33,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:12:33,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 115 conjunts are in the unsatisfiable core [2020-07-20 04:12:33,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:12:33,854 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:12:34,451 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 04:12:34,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:12:34,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 116] total 118 [2020-07-20 04:12:34,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011448194] [2020-07-20 04:12:34,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 118 states [2020-07-20 04:12:34,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:12:34,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2020-07-20 04:12:34,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6451, Invalid=7355, Unknown=0, NotChecked=0, Total=13806 [2020-07-20 04:12:34,454 INFO L87 Difference]: Start difference. First operand 790 states and 790 transitions. Second operand 118 states. [2020-07-20 04:12:39,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:12:39,074 INFO L93 Difference]: Finished difference Result 800 states and 800 transitions. [2020-07-20 04:12:39,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2020-07-20 04:12:39,076 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 787 [2020-07-20 04:12:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:12:39,078 INFO L225 Difference]: With dead ends: 800 [2020-07-20 04:12:39,078 INFO L226 Difference]: Without dead ends: 798 [2020-07-20 04:12:39,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1127 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=6457, Invalid=7585, Unknown=0, NotChecked=0, Total=14042 [2020-07-20 04:12:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-07-20 04:12:39,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 797. [2020-07-20 04:12:39,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-07-20 04:12:39,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 797 transitions. [2020-07-20 04:12:39,093 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 797 transitions. Word has length 787 [2020-07-20 04:12:39,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:12:39,094 INFO L479 AbstractCegarLoop]: Abstraction has 797 states and 797 transitions. [2020-07-20 04:12:39,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 118 states. [2020-07-20 04:12:39,094 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 797 transitions. [2020-07-20 04:12:39,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2020-07-20 04:12:39,101 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:12:39,101 INFO L422 BasicCegarLoop]: trace histogram [113, 113, 113, 112, 112, 112, 112, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:12:39,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2020-07-20 04:12:39,316 INFO L427 AbstractCegarLoop]: === Iteration 113 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:12:39,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:12:39,317 INFO L82 PathProgramCache]: Analyzing trace with hash -718726731, now seen corresponding path program 112 times [2020-07-20 04:12:39,317 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:12:39,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84282501] [2020-07-20 04:12:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:12:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:12:55,179 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 04:12:55,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84282501] [2020-07-20 04:12:55,180 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828401158] [2020-07-20 04:12:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a571935 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 04:12:55,384 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a571935 issued 4 check-sat command(s) [2020-07-20 04:12:55,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:12:55,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 116 conjunts are in the unsatisfiable core [2020-07-20 04:12:55,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:12:55,423 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:12:56,011 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 04:12:56,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:12:56,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 117] total 119 [2020-07-20 04:12:56,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092524686] [2020-07-20 04:12:56,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 119 states [2020-07-20 04:12:56,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:12:56,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2020-07-20 04:12:56,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6565, Invalid=7477, Unknown=0, NotChecked=0, Total=14042 [2020-07-20 04:12:56,014 INFO L87 Difference]: Start difference. First operand 797 states and 797 transitions. Second operand 119 states. [2020-07-20 04:13:00,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:13:00,226 INFO L93 Difference]: Finished difference Result 807 states and 807 transitions. [2020-07-20 04:13:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2020-07-20 04:13:00,229 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 794 [2020-07-20 04:13:00,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:13:00,231 INFO L225 Difference]: With dead ends: 807 [2020-07-20 04:13:00,231 INFO L226 Difference]: Without dead ends: 805 [2020-07-20 04:13:00,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1137 GetRequests, 1019 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=6571, Invalid=7709, Unknown=0, NotChecked=0, Total=14280 [2020-07-20 04:13:00,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-07-20 04:13:00,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 804. [2020-07-20 04:13:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-07-20 04:13:00,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 804 transitions. [2020-07-20 04:13:00,246 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 804 transitions. Word has length 794 [2020-07-20 04:13:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:13:00,246 INFO L479 AbstractCegarLoop]: Abstraction has 804 states and 804 transitions. [2020-07-20 04:13:00,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 119 states. [2020-07-20 04:13:00,247 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 804 transitions. [2020-07-20 04:13:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-07-20 04:13:00,253 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:13:00,254 INFO L422 BasicCegarLoop]: trace histogram [114, 114, 114, 113, 113, 113, 113, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:13:00,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2020-07-20 04:13:00,455 INFO L427 AbstractCegarLoop]: === Iteration 114 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:13:00,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:13:00,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1947225080, now seen corresponding path program 113 times [2020-07-20 04:13:00,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:13:00,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427091831] [2020-07-20 04:13:00,456 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:13:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:16,658 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 04:13:16,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427091831] [2020-07-20 04:13:16,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427992300] [2020-07-20 04:13:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e49a0c8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:13:16,866 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e49a0c8 issued 4 check-sat command(s) [2020-07-20 04:13:16,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:13:16,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 117 conjunts are in the unsatisfiable core [2020-07-20 04:13:16,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:13:16,914 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:13:17,676 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 04:13:17,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:13:17,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118] total 120 [2020-07-20 04:13:17,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097528222] [2020-07-20 04:13:17,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 120 states [2020-07-20 04:13:17,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:13:17,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2020-07-20 04:13:17,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6680, Invalid=7600, Unknown=0, NotChecked=0, Total=14280 [2020-07-20 04:13:17,680 INFO L87 Difference]: Start difference. First operand 804 states and 804 transitions. Second operand 120 states. [2020-07-20 04:13:23,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:13:23,122 INFO L93 Difference]: Finished difference Result 814 states and 814 transitions. [2020-07-20 04:13:23,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-07-20 04:13:23,124 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 801 [2020-07-20 04:13:23,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:13:23,127 INFO L225 Difference]: With dead ends: 814 [2020-07-20 04:13:23,127 INFO L226 Difference]: Without dead ends: 812 [2020-07-20 04:13:23,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=6686, Invalid=7834, Unknown=0, NotChecked=0, Total=14520 [2020-07-20 04:13:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-07-20 04:13:23,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 811. [2020-07-20 04:13:23,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-07-20 04:13:23,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 811 transitions. [2020-07-20 04:13:23,139 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 811 transitions. Word has length 801 [2020-07-20 04:13:23,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:13:23,140 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 811 transitions. [2020-07-20 04:13:23,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 120 states. [2020-07-20 04:13:23,140 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 811 transitions. [2020-07-20 04:13:23,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2020-07-20 04:13:23,145 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:13:23,145 INFO L422 BasicCegarLoop]: trace histogram [115, 115, 115, 114, 114, 114, 114, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:13:23,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2020-07-20 04:13:23,346 INFO L427 AbstractCegarLoop]: === Iteration 115 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:13:23,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:13:23,347 INFO L82 PathProgramCache]: Analyzing trace with hash -311859627, now seen corresponding path program 114 times [2020-07-20 04:13:23,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:13:23,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51077404] [2020-07-20 04:13:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:13:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:13:38,636 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 04:13:38,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51077404] [2020-07-20 04:13:38,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288759785] [2020-07-20 04:13:38,637 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@279afff5 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 04:13:38,839 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@279afff5 issued 4 check-sat command(s) [2020-07-20 04:13:38,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:13:38,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 118 conjunts are in the unsatisfiable core [2020-07-20 04:13:38,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:13:38,878 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:13:39,457 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 04:13:39,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:13:39,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 119] total 121 [2020-07-20 04:13:39,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470312773] [2020-07-20 04:13:39,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 121 states [2020-07-20 04:13:39,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:13:39,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2020-07-20 04:13:39,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6796, Invalid=7724, Unknown=0, NotChecked=0, Total=14520 [2020-07-20 04:13:39,460 INFO L87 Difference]: Start difference. First operand 811 states and 811 transitions. Second operand 121 states. [2020-07-20 04:13:43,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:13:43,515 INFO L93 Difference]: Finished difference Result 821 states and 821 transitions. [2020-07-20 04:13:43,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2020-07-20 04:13:43,517 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 808 [2020-07-20 04:13:43,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:13:43,519 INFO L225 Difference]: With dead ends: 821 [2020-07-20 04:13:43,519 INFO L226 Difference]: Without dead ends: 819 [2020-07-20 04:13:43,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1157 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=6802, Invalid=7960, Unknown=0, NotChecked=0, Total=14762 [2020-07-20 04:13:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-07-20 04:13:43,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 818. [2020-07-20 04:13:43,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-20 04:13:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 818 transitions. [2020-07-20 04:13:43,530 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 818 transitions. Word has length 808 [2020-07-20 04:13:43,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:13:43,530 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 818 transitions. [2020-07-20 04:13:43,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 121 states. [2020-07-20 04:13:43,530 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 818 transitions. [2020-07-20 04:13:43,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2020-07-20 04:13:43,535 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:13:43,536 INFO L422 BasicCegarLoop]: trace histogram [116, 116, 116, 115, 115, 115, 115, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:13:43,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:13:43,736 INFO L427 AbstractCegarLoop]: === Iteration 116 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:13:43,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:13:43,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1908274024, now seen corresponding path program 115 times [2020-07-20 04:13:43,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:13:43,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595427476] [2020-07-20 04:13:43,738 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:13:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:01,257 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 04:14:01,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595427476] [2020-07-20 04:14:01,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076439379] [2020-07-20 04:14:01,257 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c71266a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:14:01,488 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c71266a issued 4 check-sat command(s) [2020-07-20 04:14:01,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:14:01,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 119 conjunts are in the unsatisfiable core [2020-07-20 04:14:01,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:14:01,525 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:14:02,179 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 04:14:02,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:14:02,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120] total 122 [2020-07-20 04:14:02,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386479132] [2020-07-20 04:14:02,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 122 states [2020-07-20 04:14:02,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:14:02,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2020-07-20 04:14:02,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6913, Invalid=7849, Unknown=0, NotChecked=0, Total=14762 [2020-07-20 04:14:02,183 INFO L87 Difference]: Start difference. First operand 818 states and 818 transitions. Second operand 122 states. [2020-07-20 04:14:07,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:14:07,412 INFO L93 Difference]: Finished difference Result 828 states and 828 transitions. [2020-07-20 04:14:07,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2020-07-20 04:14:07,415 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 815 [2020-07-20 04:14:07,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:14:07,419 INFO L225 Difference]: With dead ends: 828 [2020-07-20 04:14:07,419 INFO L226 Difference]: Without dead ends: 826 [2020-07-20 04:14:07,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=6919, Invalid=8087, Unknown=0, NotChecked=0, Total=15006 [2020-07-20 04:14:07,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-07-20 04:14:07,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 825. [2020-07-20 04:14:07,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-07-20 04:14:07,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 825 transitions. [2020-07-20 04:14:07,436 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 825 transitions. Word has length 815 [2020-07-20 04:14:07,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:14:07,437 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 825 transitions. [2020-07-20 04:14:07,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 122 states. [2020-07-20 04:14:07,437 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 825 transitions. [2020-07-20 04:14:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-07-20 04:14:07,447 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:14:07,447 INFO L422 BasicCegarLoop]: trace histogram [117, 117, 117, 116, 116, 116, 116, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:14:07,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2020-07-20 04:14:07,663 INFO L427 AbstractCegarLoop]: === Iteration 117 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:14:07,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:14:07,663 INFO L82 PathProgramCache]: Analyzing trace with hash -497607947, now seen corresponding path program 116 times [2020-07-20 04:14:07,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:14:07,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299262129] [2020-07-20 04:14:07,664 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:14:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:25,079 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 04:14:25,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299262129] [2020-07-20 04:14:25,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996261717] [2020-07-20 04:14:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48eb3cb2 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 04:14:25,286 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48eb3cb2 issued 4 check-sat command(s) [2020-07-20 04:14:25,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:14:25,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 120 conjunts are in the unsatisfiable core [2020-07-20 04:14:25,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:14:25,317 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:14:25,902 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 04:14:25,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:14:25,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 121] total 123 [2020-07-20 04:14:25,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375500669] [2020-07-20 04:14:25,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 123 states [2020-07-20 04:14:25,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:14:25,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2020-07-20 04:14:25,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7031, Invalid=7975, Unknown=0, NotChecked=0, Total=15006 [2020-07-20 04:14:25,905 INFO L87 Difference]: Start difference. First operand 825 states and 825 transitions. Second operand 123 states. [2020-07-20 04:14:30,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:14:30,317 INFO L93 Difference]: Finished difference Result 835 states and 835 transitions. [2020-07-20 04:14:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2020-07-20 04:14:30,319 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 822 [2020-07-20 04:14:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:14:30,321 INFO L225 Difference]: With dead ends: 835 [2020-07-20 04:14:30,321 INFO L226 Difference]: Without dead ends: 833 [2020-07-20 04:14:30,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1177 GetRequests, 1055 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=7037, Invalid=8215, Unknown=0, NotChecked=0, Total=15252 [2020-07-20 04:14:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-07-20 04:14:30,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 832. [2020-07-20 04:14:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-07-20 04:14:30,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 832 transitions. [2020-07-20 04:14:30,335 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 832 transitions. Word has length 822 [2020-07-20 04:14:30,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:14:30,336 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 832 transitions. [2020-07-20 04:14:30,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 123 states. [2020-07-20 04:14:30,336 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 832 transitions. [2020-07-20 04:14:30,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2020-07-20 04:14:30,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:14:30,343 INFO L422 BasicCegarLoop]: trace histogram [118, 118, 118, 117, 117, 117, 117, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:14:30,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:14:30,548 INFO L427 AbstractCegarLoop]: === Iteration 118 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:14:30,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:14:30,548 INFO L82 PathProgramCache]: Analyzing trace with hash -931542328, now seen corresponding path program 117 times [2020-07-20 04:14:30,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:14:30,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411906436] [2020-07-20 04:14:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:14:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:14:45,480 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 04:14:45,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411906436] [2020-07-20 04:14:45,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150534341] [2020-07-20 04:14:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@518bac51 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:14:45,677 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@518bac51 issued 4 check-sat command(s) [2020-07-20 04:14:45,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:14:45,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 121 conjunts are in the unsatisfiable core [2020-07-20 04:14:45,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:14:45,710 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:14:46,251 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 04:14:46,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:14:46,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 122] total 124 [2020-07-20 04:14:46,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427426171] [2020-07-20 04:14:46,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 124 states [2020-07-20 04:14:46,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:14:46,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2020-07-20 04:14:46,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7150, Invalid=8102, Unknown=0, NotChecked=0, Total=15252 [2020-07-20 04:14:46,254 INFO L87 Difference]: Start difference. First operand 832 states and 832 transitions. Second operand 124 states. [2020-07-20 04:14:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:14:50,485 INFO L93 Difference]: Finished difference Result 842 states and 842 transitions. [2020-07-20 04:14:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2020-07-20 04:14:50,487 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 829 [2020-07-20 04:14:50,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:14:50,489 INFO L225 Difference]: With dead ends: 842 [2020-07-20 04:14:50,489 INFO L226 Difference]: Without dead ends: 840 [2020-07-20 04:14:50,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=7156, Invalid=8344, Unknown=0, NotChecked=0, Total=15500 [2020-07-20 04:14:50,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-07-20 04:14:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 839. [2020-07-20 04:14:50,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2020-07-20 04:14:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 839 transitions. [2020-07-20 04:14:50,499 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 839 transitions. Word has length 829 [2020-07-20 04:14:50,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:14:50,500 INFO L479 AbstractCegarLoop]: Abstraction has 839 states and 839 transitions. [2020-07-20 04:14:50,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 124 states. [2020-07-20 04:14:50,500 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 839 transitions. [2020-07-20 04:14:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2020-07-20 04:14:50,507 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:14:50,507 INFO L422 BasicCegarLoop]: trace histogram [119, 119, 119, 118, 118, 118, 118, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:14:50,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 04:14:50,722 INFO L427 AbstractCegarLoop]: === Iteration 119 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:14:50,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:14:50,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1537460331, now seen corresponding path program 118 times [2020-07-20 04:14:50,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:14:50,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520097466] [2020-07-20 04:14:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:14:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 04:15:05,898 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 04:15:05,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520097466] [2020-07-20 04:15:05,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326402808] [2020-07-20 04:15:05,899 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3aae4e6a 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 04:15:06,111 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3aae4e6a issued 4 check-sat command(s) [2020-07-20 04:15:06,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 04:15:06,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 122 conjunts are in the unsatisfiable core [2020-07-20 04:15:06,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 04:15:06,144 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 04:15:06,737 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 04:15:06,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 04:15:06,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [123, 123] total 125 [2020-07-20 04:15:06,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573559030] [2020-07-20 04:15:06,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 125 states [2020-07-20 04:15:06,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 04:15:06,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2020-07-20 04:15:06,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7270, Invalid=8230, Unknown=0, NotChecked=0, Total=15500 [2020-07-20 04:15:06,740 INFO L87 Difference]: Start difference. First operand 839 states and 839 transitions. Second operand 125 states. [2020-07-20 04:15:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 04:15:11,157 INFO L93 Difference]: Finished difference Result 849 states and 849 transitions. [2020-07-20 04:15:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-07-20 04:15:11,159 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 836 [2020-07-20 04:15:11,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 04:15:11,162 INFO L225 Difference]: With dead ends: 849 [2020-07-20 04:15:11,162 INFO L226 Difference]: Without dead ends: 847 [2020-07-20 04:15:11,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1073 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=7276, Invalid=8474, Unknown=0, NotChecked=0, Total=15750 [2020-07-20 04:15:11,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-07-20 04:15:11,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 846. [2020-07-20 04:15:11,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-07-20 04:15:11,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 846 transitions. [2020-07-20 04:15:11,176 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 846 transitions. Word has length 836 [2020-07-20 04:15:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 04:15:11,177 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 846 transitions. [2020-07-20 04:15:11,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 125 states. [2020-07-20 04:15:11,177 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 846 transitions. [2020-07-20 04:15:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-07-20 04:15:11,184 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 04:15:11,184 INFO L422 BasicCegarLoop]: trace histogram [120, 120, 120, 119, 119, 119, 119, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 04:15:11,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2020-07-20 04:15:11,400 INFO L427 AbstractCegarLoop]: === Iteration 120 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 04:15:11,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 04:15:11,400 INFO L82 PathProgramCache]: Analyzing trace with hash 880359976, now seen corresponding path program 119 times [2020-07-20 04:15:11,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 04:15:11,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67448701] [2020-07-20 04:15:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33c200eb [2020-07-20 04:15:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat