/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --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 [2020-07-19 23:44:17,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:44:17,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:44:17,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 23:44:17,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 23:44:17,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 23:44:17,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 23:44:17,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 23:44:17,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 23:44:17,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 23:44:17,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 23:44:17,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 23:44:17,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:44:17,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:44:17,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:44:17,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:44:17,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:44:17,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:44:17,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:44:17,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:44:17,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:44:17,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:44:17,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:44:17,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:44:17,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:44:17,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:44:17,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:44:17,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:44:17,973 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 [2020-07-19 23:44:17,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:44:17,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:44:17,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:44:17,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:44:17,990 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:44:17,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:44:17,990 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:44:17,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:44:17,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:44:17,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:44:17,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:44:17,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:44:17,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:44:17,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:44:17,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:44:17,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:44:17,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:44:17,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:44:17,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:44:17,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:44:17,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:44:17,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:44:17,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:44:17,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:44:17,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:44:17,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:44:17,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:44:17,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:44:17,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:44:17,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS 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 [2020-07-19 23:44:18,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:44:18,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:44:18,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:44:18,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:44:18,313 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:44:18,315 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-19 23:44:18,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36555d8b/97628942f0894b2d8bde01c32b3655b4/FLAG868eb4641 [2020-07-19 23:44:18,859 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:44:18,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2020-07-19 23:44:18,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36555d8b/97628942f0894b2d8bde01c32b3655b4/FLAG868eb4641 [2020-07-19 23:44:19,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36555d8b/97628942f0894b2d8bde01c32b3655b4 [2020-07-19 23:44:19,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:44:19,261 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:44:19,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:44:19,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:44:19,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:44:19,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7fc8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19, skipping insertion in model container [2020-07-19 23:44:19,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:44:19,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:44:19,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:44:19,474 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:44:19,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:44:19,500 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:44:19,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19 WrapperNode [2020-07-19 23:44:19,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:44:19,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:44:19,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:44:19,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:44:19,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (1/1) ... [2020-07-19 23:44:19,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:44:19,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:44:19,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:44:19,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:44:19,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (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 [2020-07-19 23:44:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:44:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:44:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-19 23:44:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 23:44:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:44:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:44:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-19 23:44:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-19 23:44:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 23:44:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:44:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:44:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:44:19,860 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:44:19,860 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:44:19,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:44:19 BoogieIcfgContainer [2020-07-19 23:44:19,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:44:19,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:44:19,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:44:19,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:44:19,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:44:19" (1/3) ... [2020-07-19 23:44:19,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ada616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:44:19, skipping insertion in model container [2020-07-19 23:44:19,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:44:19" (2/3) ... [2020-07-19 23:44:19,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ada616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:44:19, skipping insertion in model container [2020-07-19 23:44:19,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:44:19" (3/3) ... [2020-07-19 23:44:19,873 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2020-07-19 23:44:19,885 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:44:19,892 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:44:19,908 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:44:19,977 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:44:19,978 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:44:19,978 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:44:19,978 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:44:19,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:44:19,979 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:44:19,979 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:44:19,979 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:44:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-07-19 23:44:20,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-19 23:44:20,019 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:20,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:20,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:20,027 INFO L82 PathProgramCache]: Analyzing trace with hash 651998901, now seen corresponding path program 1 times [2020-07-19 23:44:20,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:20,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007226231] [2020-07-19 23:44:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:20,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:44:20,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007226231] [2020-07-19 23:44:20,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:44:20,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 23:44:20,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112348942] [2020-07-19 23:44:20,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:44:20,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:20,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:44:20,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:44:20,310 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2020-07-19 23:44:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:20,419 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2020-07-19 23:44:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 23:44:20,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-19 23:44:20,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:20,430 INFO L225 Difference]: With dead ends: 40 [2020-07-19 23:44:20,431 INFO L226 Difference]: Without dead ends: 21 [2020-07-19 23:44:20,435 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 [2020-07-19 23:44:20,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-19 23:44:20,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-07-19 23:44:20,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-19 23:44:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-07-19 23:44:20,480 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2020-07-19 23:44:20,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:20,480 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-07-19 23:44:20,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:44:20,481 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-07-19 23:44:20,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-19 23:44:20,482 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:20,482 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:20,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:44:20,483 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:20,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:20,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1822329080, now seen corresponding path program 1 times [2020-07-19 23:44:20,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:20,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139596603] [2020-07-19 23:44:20,485 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:44:20,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139596603] [2020-07-19 23:44:20,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740190527] [2020-07-19 23:44:20,581 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b163794 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:20,632 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1b163794 issued 4 check-sat command(s) [2020-07-19 23:44:20,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:20,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 23:44:20,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:20,680 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:44:20,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:20,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-07-19 23:44:20,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409559095] [2020-07-19 23:44:20,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:44:20,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:20,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:44:20,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:44:20,720 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 8 states. [2020-07-19 23:44:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:20,805 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-07-19 23:44:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 23:44:20,806 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-07-19 23:44:20,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:20,807 INFO L225 Difference]: With dead ends: 30 [2020-07-19 23:44:20,808 INFO L226 Difference]: Without dead ends: 28 [2020-07-19 23:44:20,809 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 [2020-07-19 23:44:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-19 23:44:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2020-07-19 23:44:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-07-19 23:44:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-07-19 23:44:20,817 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2020-07-19 23:44:20,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:20,818 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-07-19 23:44:20,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:44:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-07-19 23:44:20,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-19 23:44:20,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:20,819 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:21,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-19 23:44:21,034 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:21,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:21,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1510359893, now seen corresponding path program 2 times [2020-07-19 23:44:21,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:21,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730207757] [2020-07-19 23:44:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 23:44:21,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730207757] [2020-07-19 23:44:21,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629680078] [2020-07-19 23:44:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@160d7441 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 [2020-07-19 23:44:21,171 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@160d7441 issued 4 check-sat command(s) [2020-07-19 23:44:21,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:21,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 23:44:21,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:21,186 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 23:44:21,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:21,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-07-19 23:44:21,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763458609] [2020-07-19 23:44:21,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:44:21,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:21,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:44:21,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:44:21,218 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 9 states. [2020-07-19 23:44:21,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:21,291 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2020-07-19 23:44:21,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:44:21,292 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-07-19 23:44:21,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:21,293 INFO L225 Difference]: With dead ends: 37 [2020-07-19 23:44:21,293 INFO L226 Difference]: Without dead ends: 35 [2020-07-19 23:44:21,294 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 [2020-07-19 23:44:21,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-07-19 23:44:21,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-07-19 23:44:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-19 23:44:21,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2020-07-19 23:44:21,303 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 24 [2020-07-19 23:44:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:21,304 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2020-07-19 23:44:21,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:44:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2020-07-19 23:44:21,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-19 23:44:21,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:21,306 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:21,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:21,523 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:21,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:21,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1096709736, now seen corresponding path program 3 times [2020-07-19 23:44:21,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:21,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930461987] [2020-07-19 23:44:21,524 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:21,662 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 23:44:21,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930461987] [2020-07-19 23:44:21,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633098985] [2020-07-19 23:44:21,663 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a305d43 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:21,695 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a305d43 issued 4 check-sat command(s) [2020-07-19 23:44:21,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:21,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 23:44:21,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:21,716 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:21,748 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-19 23:44:21,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:21,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2020-07-19 23:44:21,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190381570] [2020-07-19 23:44:21,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 23:44:21,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:21,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 23:44:21,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:44:21,751 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 10 states. [2020-07-19 23:44:21,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:21,836 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2020-07-19 23:44:21,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 23:44:21,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2020-07-19 23:44:21,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:21,839 INFO L225 Difference]: With dead ends: 44 [2020-07-19 23:44:21,839 INFO L226 Difference]: Without dead ends: 42 [2020-07-19 23:44:21,839 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 [2020-07-19 23:44:21,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-19 23:44:21,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-07-19 23:44:21,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-19 23:44:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-07-19 23:44:21,848 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 31 [2020-07-19 23:44:21,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:21,849 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-07-19 23:44:21,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 23:44:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-07-19 23:44:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-19 23:44:21,850 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:21,850 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:22,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:22,064 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:22,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:22,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2024617973, now seen corresponding path program 4 times [2020-07-19 23:44:22,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:22,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872690908] [2020-07-19 23:44:22,065 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-19 23:44:22,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872690908] [2020-07-19 23:44:22,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618851758] [2020-07-19 23:44:22,159 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ac7a943 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 [2020-07-19 23:44:22,199 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1ac7a943 issued 4 check-sat command(s) [2020-07-19 23:44:22,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:22,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-19 23:44:22,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:22,215 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 8 proven. 26 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-19 23:44:22,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:22,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2020-07-19 23:44:22,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827113981] [2020-07-19 23:44:22,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 23:44:22,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:22,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 23:44:22,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:44:22,253 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 11 states. [2020-07-19 23:44:22,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:22,340 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2020-07-19 23:44:22,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 23:44:22,341 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 38 [2020-07-19 23:44:22,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:22,342 INFO L225 Difference]: With dead ends: 51 [2020-07-19 23:44:22,343 INFO L226 Difference]: Without dead ends: 49 [2020-07-19 23:44:22,343 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 [2020-07-19 23:44:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-19 23:44:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2020-07-19 23:44:22,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-19 23:44:22,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2020-07-19 23:44:22,353 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 38 [2020-07-19 23:44:22,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:22,353 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2020-07-19 23:44:22,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 23:44:22,353 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2020-07-19 23:44:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-19 23:44:22,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:22,355 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:22,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:22,571 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:22,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:22,573 INFO L82 PathProgramCache]: Analyzing trace with hash 125373896, now seen corresponding path program 5 times [2020-07-19 23:44:22,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:22,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543236401] [2020-07-19 23:44:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-19 23:44:22,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543236401] [2020-07-19 23:44:22,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729062068] [2020-07-19 23:44:22,710 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45b98455 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:22,746 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@45b98455 issued 4 check-sat command(s) [2020-07-19 23:44:22,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:22,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-19 23:44:22,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:22,762 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-19 23:44:22,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:22,785 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 12 [2020-07-19 23:44:22,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939835595] [2020-07-19 23:44:22,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 23:44:22,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:22,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 23:44:22,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-19 23:44:22,787 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 12 states. [2020-07-19 23:44:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:22,906 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2020-07-19 23:44:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 23:44:22,907 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2020-07-19 23:44:22,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:22,909 INFO L225 Difference]: With dead ends: 58 [2020-07-19 23:44:22,909 INFO L226 Difference]: Without dead ends: 56 [2020-07-19 23:44:22,910 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 [2020-07-19 23:44:22,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-19 23:44:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 55. [2020-07-19 23:44:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-19 23:44:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2020-07-19 23:44:22,919 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 45 [2020-07-19 23:44:22,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:22,919 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2020-07-19 23:44:22,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 23:44:22,920 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2020-07-19 23:44:22,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 23:44:22,921 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:22,922 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:23,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-19 23:44:23,137 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:23,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:23,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1195086997, now seen corresponding path program 6 times [2020-07-19 23:44:23,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:23,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66646392] [2020-07-19 23:44:23,139 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-19 23:44:23,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66646392] [2020-07-19 23:44:23,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062500017] [2020-07-19 23:44:23,330 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4af2361c 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 [2020-07-19 23:44:23,391 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4af2361c issued 4 check-sat command(s) [2020-07-19 23:44:23,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:23,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-19 23:44:23,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:23,418 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 12 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-19 23:44:23,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:23,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2020-07-19 23:44:23,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051145354] [2020-07-19 23:44:23,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-19 23:44:23,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:23,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-19 23:44:23,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-19 23:44:23,447 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 13 states. [2020-07-19 23:44:23,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:23,565 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2020-07-19 23:44:23,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 23:44:23,570 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-07-19 23:44:23,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:23,571 INFO L225 Difference]: With dead ends: 65 [2020-07-19 23:44:23,571 INFO L226 Difference]: Without dead ends: 63 [2020-07-19 23:44:23,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-19 23:44:23,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-07-19 23:44:23,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2020-07-19 23:44:23,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-19 23:44:23,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2020-07-19 23:44:23,582 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 52 [2020-07-19 23:44:23,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:23,583 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2020-07-19 23:44:23,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-19 23:44:23,583 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2020-07-19 23:44:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-19 23:44:23,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:23,585 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:23,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:23,794 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:23,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:23,794 INFO L82 PathProgramCache]: Analyzing trace with hash 906444072, now seen corresponding path program 7 times [2020-07-19 23:44:23,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:23,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477425165] [2020-07-19 23:44:23,795 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-19 23:44:23,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477425165] [2020-07-19 23:44:23,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211814035] [2020-07-19 23:44:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bdf6b85 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:23,972 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bdf6b85 issued 4 check-sat command(s) [2020-07-19 23:44:23,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:23,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 23:44:23,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:24,016 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 14 proven. 77 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-19 23:44:24,048 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:24,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2020-07-19 23:44:24,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112152409] [2020-07-19 23:44:24,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-19 23:44:24,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:24,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-19 23:44:24,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-07-19 23:44:24,052 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand 14 states. [2020-07-19 23:44:24,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:24,230 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2020-07-19 23:44:24,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 23:44:24,230 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2020-07-19 23:44:24,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:24,232 INFO L225 Difference]: With dead ends: 72 [2020-07-19 23:44:24,232 INFO L226 Difference]: Without dead ends: 70 [2020-07-19 23:44:24,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:44:24,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-07-19 23:44:24,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-07-19 23:44:24,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-19 23:44:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2020-07-19 23:44:24,263 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 59 [2020-07-19 23:44:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:24,263 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2020-07-19 23:44:24,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-19 23:44:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2020-07-19 23:44:24,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-19 23:44:24,268 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:24,268 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:24,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:24,482 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:24,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:24,483 INFO L82 PathProgramCache]: Analyzing trace with hash -2003085003, now seen corresponding path program 8 times [2020-07-19 23:44:24,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:24,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458951739] [2020-07-19 23:44:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-19 23:44:24,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458951739] [2020-07-19 23:44:24,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608538774] [2020-07-19 23:44:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5bc853a 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 [2020-07-19 23:44:24,675 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5bc853a issued 4 check-sat command(s) [2020-07-19 23:44:24,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:24,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-19 23:44:24,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:24,693 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 16 proven. 100 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-19 23:44:24,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:24,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 15 [2020-07-19 23:44:24,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882045026] [2020-07-19 23:44:24,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-19 23:44:24,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:24,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-19 23:44:24,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:44:24,723 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand 15 states. [2020-07-19 23:44:24,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:24,858 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2020-07-19 23:44:24,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-19 23:44:24,858 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 66 [2020-07-19 23:44:24,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:24,860 INFO L225 Difference]: With dead ends: 79 [2020-07-19 23:44:24,860 INFO L226 Difference]: Without dead ends: 77 [2020-07-19 23:44:24,861 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 [2020-07-19 23:44:24,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-07-19 23:44:24,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2020-07-19 23:44:24,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-19 23:44:24,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2020-07-19 23:44:24,880 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 66 [2020-07-19 23:44:24,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:24,881 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2020-07-19 23:44:24,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-19 23:44:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2020-07-19 23:44:24,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-07-19 23:44:24,884 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:24,884 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:25,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-07-19 23:44:25,085 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:25,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:25,086 INFO L82 PathProgramCache]: Analyzing trace with hash -824245112, now seen corresponding path program 9 times [2020-07-19 23:44:25,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:25,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216406290] [2020-07-19 23:44:25,087 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,256 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-19 23:44:25,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216406290] [2020-07-19 23:44:25,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423010666] [2020-07-19 23:44:25,257 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a82a569 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:25,313 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2a82a569 issued 4 check-sat command(s) [2020-07-19 23:44:25,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:25,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-19 23:44:25,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:25,333 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 18 proven. 126 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-19 23:44:25,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:25,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 16 [2020-07-19 23:44:25,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109165149] [2020-07-19 23:44:25,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-19 23:44:25,368 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:25,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-19 23:44:25,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-07-19 23:44:25,369 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand 16 states. [2020-07-19 23:44:25,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:25,481 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2020-07-19 23:44:25,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-19 23:44:25,481 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 73 [2020-07-19 23:44:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:25,483 INFO L225 Difference]: With dead ends: 86 [2020-07-19 23:44:25,483 INFO L226 Difference]: Without dead ends: 84 [2020-07-19 23:44:25,484 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 [2020-07-19 23:44:25,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-07-19 23:44:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 83. [2020-07-19 23:44:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-07-19 23:44:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2020-07-19 23:44:25,493 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 73 [2020-07-19 23:44:25,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:25,494 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 83 transitions. [2020-07-19 23:44:25,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-19 23:44:25,494 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 83 transitions. [2020-07-19 23:44:25,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-07-19 23:44:25,495 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:25,496 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:25,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:25,709 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:25,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:25,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1640593963, now seen corresponding path program 10 times [2020-07-19 23:44:25,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:25,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351819411] [2020-07-19 23:44:25,710 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-19 23:44:25,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351819411] [2020-07-19 23:44:25,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910098419] [2020-07-19 23:44:25,926 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@172c8a2c 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 [2020-07-19 23:44:25,963 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@172c8a2c issued 4 check-sat command(s) [2020-07-19 23:44:25,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:25,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-19 23:44:25,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:25,983 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 20 proven. 155 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-19 23:44:26,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:26,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 17 [2020-07-19 23:44:26,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406826105] [2020-07-19 23:44:26,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-19 23:44:26,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:26,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-19 23:44:26,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-07-19 23:44:26,020 INFO L87 Difference]: Start difference. First operand 83 states and 83 transitions. Second operand 17 states. [2020-07-19 23:44:26,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:26,139 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2020-07-19 23:44:26,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 23:44:26,139 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 80 [2020-07-19 23:44:26,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:26,141 INFO L225 Difference]: With dead ends: 93 [2020-07-19 23:44:26,141 INFO L226 Difference]: Without dead ends: 91 [2020-07-19 23:44:26,142 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 [2020-07-19 23:44:26,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-19 23:44:26,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2020-07-19 23:44:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-07-19 23:44:26,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2020-07-19 23:44:26,150 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 80 [2020-07-19 23:44:26,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:26,151 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2020-07-19 23:44:26,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-19 23:44:26,151 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2020-07-19 23:44:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-19 23:44:26,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:26,153 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:26,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:26,354 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:26,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:26,355 INFO L82 PathProgramCache]: Analyzing trace with hash -447323160, now seen corresponding path program 11 times [2020-07-19 23:44:26,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:26,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931397681] [2020-07-19 23:44:26,356 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:26,569 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-19 23:44:26,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931397681] [2020-07-19 23:44:26,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48326191] [2020-07-19 23:44:26,570 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7bf454d5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:26,612 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7bf454d5 issued 4 check-sat command(s) [2020-07-19 23:44:26,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:26,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-19 23:44:26,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:26,632 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 22 proven. 187 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-19 23:44:26,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:26,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 18 [2020-07-19 23:44:26,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208929327] [2020-07-19 23:44:26,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-19 23:44:26,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:26,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-19 23:44:26,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-07-19 23:44:26,674 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand 18 states. [2020-07-19 23:44:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:26,836 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2020-07-19 23:44:26,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-19 23:44:26,837 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 87 [2020-07-19 23:44:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:26,838 INFO L225 Difference]: With dead ends: 100 [2020-07-19 23:44:26,839 INFO L226 Difference]: Without dead ends: 98 [2020-07-19 23:44:26,839 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 [2020-07-19 23:44:26,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-07-19 23:44:26,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2020-07-19 23:44:26,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-19 23:44:26,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2020-07-19 23:44:26,848 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 87 [2020-07-19 23:44:26,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:26,849 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2020-07-19 23:44:26,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-19 23:44:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2020-07-19 23:44:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-07-19 23:44:26,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:26,851 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:27,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-07-19 23:44:27,065 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:27,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:27,066 INFO L82 PathProgramCache]: Analyzing trace with hash 670505589, now seen corresponding path program 12 times [2020-07-19 23:44:27,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:27,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086402592] [2020-07-19 23:44:27,067 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-07-19 23:44:27,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086402592] [2020-07-19 23:44:27,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862988701] [2020-07-19 23:44:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@199e9286 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 [2020-07-19 23:44:27,323 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@199e9286 issued 4 check-sat command(s) [2020-07-19 23:44:27,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:27,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-19 23:44:27,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:27,370 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 24 proven. 222 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-07-19 23:44:27,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:27,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2020-07-19 23:44:27,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320620144] [2020-07-19 23:44:27,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-19 23:44:27,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:27,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-19 23:44:27,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-07-19 23:44:27,406 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand 19 states. [2020-07-19 23:44:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:27,538 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2020-07-19 23:44:27,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-19 23:44:27,540 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 94 [2020-07-19 23:44:27,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:27,542 INFO L225 Difference]: With dead ends: 107 [2020-07-19 23:44:27,542 INFO L226 Difference]: Without dead ends: 105 [2020-07-19 23:44:27,543 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 [2020-07-19 23:44:27,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-07-19 23:44:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2020-07-19 23:44:27,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-19 23:44:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2020-07-19 23:44:27,550 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 94 [2020-07-19 23:44:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:27,551 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2020-07-19 23:44:27,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-19 23:44:27,551 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2020-07-19 23:44:27,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-19 23:44:27,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:27,552 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:27,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-19 23:44:27,765 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:27,766 INFO L82 PathProgramCache]: Analyzing trace with hash -29140152, now seen corresponding path program 13 times [2020-07-19 23:44:27,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:27,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656500514] [2020-07-19 23:44:27,767 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,019 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-19 23:44:28,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656500514] [2020-07-19 23:44:28,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643524731] [2020-07-19 23:44:28,024 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72d7400e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:28,088 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72d7400e issued 4 check-sat command(s) [2020-07-19 23:44:28,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:28,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-19 23:44:28,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:28,118 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 26 proven. 260 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-19 23:44:28,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:28,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 20 [2020-07-19 23:44:28,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213181475] [2020-07-19 23:44:28,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-19 23:44:28,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:28,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-19 23:44:28,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2020-07-19 23:44:28,161 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand 20 states. [2020-07-19 23:44:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:28,340 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2020-07-19 23:44:28,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-19 23:44:28,341 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 101 [2020-07-19 23:44:28,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:28,342 INFO L225 Difference]: With dead ends: 114 [2020-07-19 23:44:28,342 INFO L226 Difference]: Without dead ends: 112 [2020-07-19 23:44:28,343 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 [2020-07-19 23:44:28,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-19 23:44:28,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2020-07-19 23:44:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-19 23:44:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2020-07-19 23:44:28,353 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 101 [2020-07-19 23:44:28,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:28,354 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2020-07-19 23:44:28,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-19 23:44:28,355 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2020-07-19 23:44:28,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-07-19 23:44:28,357 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:28,357 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:28,570 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-19 23:44:28,571 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:28,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:28,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1538844907, now seen corresponding path program 14 times [2020-07-19 23:44:28,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:28,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556550500] [2020-07-19 23:44:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-07-19 23:44:28,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556550500] [2020-07-19 23:44:28,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690150419] [2020-07-19 23:44:28,808 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e6dab4d 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 [2020-07-19 23:44:28,865 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3e6dab4d issued 4 check-sat command(s) [2020-07-19 23:44:28,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:28,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2020-07-19 23:44:28,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:28,888 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 28 proven. 301 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2020-07-19 23:44:28,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:28,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2020-07-19 23:44:28,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225364398] [2020-07-19 23:44:28,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-07-19 23:44:28,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:28,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-07-19 23:44:28,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=274, Unknown=0, NotChecked=0, Total=420 [2020-07-19 23:44:28,935 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand 21 states. [2020-07-19 23:44:29,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:29,144 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2020-07-19 23:44:29,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-19 23:44:29,145 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 108 [2020-07-19 23:44:29,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:29,147 INFO L225 Difference]: With dead ends: 121 [2020-07-19 23:44:29,147 INFO L226 Difference]: Without dead ends: 119 [2020-07-19 23:44:29,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2020-07-19 23:44:29,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-19 23:44:29,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2020-07-19 23:44:29,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-19 23:44:29,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 118 transitions. [2020-07-19 23:44:29,174 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 118 transitions. Word has length 108 [2020-07-19 23:44:29,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:29,175 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 118 transitions. [2020-07-19 23:44:29,175 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-07-19 23:44:29,175 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 118 transitions. [2020-07-19 23:44:29,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-19 23:44:29,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:29,177 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:29,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:29,392 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:29,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:29,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1878780584, now seen corresponding path program 15 times [2020-07-19 23:44:29,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:29,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615513767] [2020-07-19 23:44:29,393 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-19 23:44:29,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615513767] [2020-07-19 23:44:29,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846102082] [2020-07-19 23:44:29,657 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e9a1c7d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:29,701 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e9a1c7d issued 4 check-sat command(s) [2020-07-19 23:44:29,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:29,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-19 23:44:29,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:29,720 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 30 proven. 345 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-19 23:44:29,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:29,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 22 [2020-07-19 23:44:29,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612459140] [2020-07-19 23:44:29,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-19 23:44:29,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:29,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-19 23:44:29,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2020-07-19 23:44:29,765 INFO L87 Difference]: Start difference. First operand 118 states and 118 transitions. Second operand 22 states. [2020-07-19 23:44:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:29,951 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2020-07-19 23:44:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 23:44:29,952 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 115 [2020-07-19 23:44:29,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:29,954 INFO L225 Difference]: With dead ends: 128 [2020-07-19 23:44:29,954 INFO L226 Difference]: Without dead ends: 126 [2020-07-19 23:44:29,955 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 [2020-07-19 23:44:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-19 23:44:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 125. [2020-07-19 23:44:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-19 23:44:29,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2020-07-19 23:44:29,962 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 115 [2020-07-19 23:44:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:29,963 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2020-07-19 23:44:29,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-19 23:44:29,963 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2020-07-19 23:44:29,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-19 23:44:29,964 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:29,964 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:30,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-07-19 23:44:30,179 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:30,180 INFO L82 PathProgramCache]: Analyzing trace with hash 269515701, now seen corresponding path program 16 times [2020-07-19 23:44:30,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:30,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269568965] [2020-07-19 23:44:30,181 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:30,542 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-07-19 23:44:30,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269568965] [2020-07-19 23:44:30,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838519742] [2020-07-19 23:44:30,544 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@699825e3 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 [2020-07-19 23:44:30,623 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@699825e3 issued 4 check-sat command(s) [2020-07-19 23:44:30,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:30,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-19 23:44:30,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:30,648 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 32 proven. 392 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2020-07-19 23:44:30,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:30,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 23 [2020-07-19 23:44:30,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573607770] [2020-07-19 23:44:30,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-19 23:44:30,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:30,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-19 23:44:30,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=325, Unknown=0, NotChecked=0, Total=506 [2020-07-19 23:44:30,703 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand 23 states. [2020-07-19 23:44:30,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:30,877 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2020-07-19 23:44:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-19 23:44:30,878 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 122 [2020-07-19 23:44:30,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:30,880 INFO L225 Difference]: With dead ends: 135 [2020-07-19 23:44:30,880 INFO L226 Difference]: Without dead ends: 133 [2020-07-19 23:44:30,881 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 [2020-07-19 23:44:30,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-19 23:44:30,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2020-07-19 23:44:30,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-19 23:44:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2020-07-19 23:44:30,889 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 122 [2020-07-19 23:44:30,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:30,890 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2020-07-19 23:44:30,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-19 23:44:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2020-07-19 23:44:30,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-19 23:44:30,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:30,892 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:31,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-07-19 23:44:31,106 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:31,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:31,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1034546680, now seen corresponding path program 17 times [2020-07-19 23:44:31,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:31,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204902109] [2020-07-19 23:44:31,107 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-19 23:44:31,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204902109] [2020-07-19 23:44:31,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761137024] [2020-07-19 23:44:31,466 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@63fc7a1c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:31,557 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@63fc7a1c issued 4 check-sat command(s) [2020-07-19 23:44:31,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:31,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-19 23:44:31,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:31,586 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 34 proven. 442 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-19 23:44:31,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:31,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 24 [2020-07-19 23:44:31,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116322602] [2020-07-19 23:44:31,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-19 23:44:31,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:31,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-19 23:44:31,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=352, Unknown=0, NotChecked=0, Total=552 [2020-07-19 23:44:31,711 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand 24 states. [2020-07-19 23:44:32,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:32,003 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2020-07-19 23:44:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-19 23:44:32,004 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 129 [2020-07-19 23:44:32,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:32,006 INFO L225 Difference]: With dead ends: 142 [2020-07-19 23:44:32,007 INFO L226 Difference]: Without dead ends: 140 [2020-07-19 23:44:32,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2020-07-19 23:44:32,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-19 23:44:32,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2020-07-19 23:44:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-19 23:44:32,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2020-07-19 23:44:32,019 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 129 [2020-07-19 23:44:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:32,020 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2020-07-19 23:44:32,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-19 23:44:32,021 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2020-07-19 23:44:32,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-19 23:44:32,024 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:32,024 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:32,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-07-19 23:44:32,238 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:32,239 INFO L82 PathProgramCache]: Analyzing trace with hash -2034415531, now seen corresponding path program 18 times [2020-07-19 23:44:32,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:32,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983374937] [2020-07-19 23:44:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-07-19 23:44:32,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983374937] [2020-07-19 23:44:32,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428111082] [2020-07-19 23:44:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@bd6d879 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 [2020-07-19 23:44:32,678 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@bd6d879 issued 4 check-sat command(s) [2020-07-19 23:44:32,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:32,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-19 23:44:32,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:32,704 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:32,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 36 proven. 495 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2020-07-19 23:44:32,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:32,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2020-07-19 23:44:32,746 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901624582] [2020-07-19 23:44:32,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-19 23:44:32,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:32,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-19 23:44:32,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=380, Unknown=0, NotChecked=0, Total=600 [2020-07-19 23:44:32,748 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand 25 states. [2020-07-19 23:44:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:32,965 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2020-07-19 23:44:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-19 23:44:32,966 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 136 [2020-07-19 23:44:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:32,967 INFO L225 Difference]: With dead ends: 149 [2020-07-19 23:44:32,967 INFO L226 Difference]: Without dead ends: 147 [2020-07-19 23:44:32,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=424, Unknown=0, NotChecked=0, Total=650 [2020-07-19 23:44:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-19 23:44:32,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2020-07-19 23:44:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-19 23:44:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2020-07-19 23:44:32,976 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 136 [2020-07-19 23:44:32,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:32,977 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2020-07-19 23:44:32,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-19 23:44:32,977 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2020-07-19 23:44:32,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-19 23:44:32,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:32,979 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:33,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:33,193 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:33,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:33,193 INFO L82 PathProgramCache]: Analyzing trace with hash 245879144, now seen corresponding path program 19 times [2020-07-19 23:44:33,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:33,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713323292] [2020-07-19 23:44:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-19 23:44:33,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713323292] [2020-07-19 23:44:33,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244849850] [2020-07-19 23:44:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6da23275 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:33,604 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6da23275 issued 4 check-sat command(s) [2020-07-19 23:44:33,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:33,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-19 23:44:33,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:33,626 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 38 proven. 551 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-19 23:44:33,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:33,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 26 [2020-07-19 23:44:33,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291843890] [2020-07-19 23:44:33,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-19 23:44:33,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:33,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-19 23:44:33,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=409, Unknown=0, NotChecked=0, Total=650 [2020-07-19 23:44:33,687 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand 26 states. [2020-07-19 23:44:33,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:33,917 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2020-07-19 23:44:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-19 23:44:33,917 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 143 [2020-07-19 23:44:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:33,919 INFO L225 Difference]: With dead ends: 156 [2020-07-19 23:44:33,919 INFO L226 Difference]: Without dead ends: 154 [2020-07-19 23:44:33,920 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 [2020-07-19 23:44:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-19 23:44:33,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2020-07-19 23:44:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-19 23:44:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2020-07-19 23:44:33,927 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 143 [2020-07-19 23:44:33,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:33,928 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 153 transitions. [2020-07-19 23:44:33,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-19 23:44:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 153 transitions. [2020-07-19 23:44:33,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-19 23:44:33,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:33,930 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:34,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:34,135 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:34,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:34,136 INFO L82 PathProgramCache]: Analyzing trace with hash -499680011, now seen corresponding path program 20 times [2020-07-19 23:44:34,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:34,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986617717] [2020-07-19 23:44:34,136 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:34,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-07-19 23:44:34,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986617717] [2020-07-19 23:44:34,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067833554] [2020-07-19 23:44:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@67546859 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 [2020-07-19 23:44:34,649 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@67546859 issued 4 check-sat command(s) [2020-07-19 23:44:34,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:34,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 24 conjunts are in the unsatisfiable core [2020-07-19 23:44:34,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:34,670 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 40 proven. 610 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2020-07-19 23:44:34,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:34,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 27 [2020-07-19 23:44:34,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920251281] [2020-07-19 23:44:34,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-07-19 23:44:34,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:34,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-07-19 23:44:34,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=439, Unknown=0, NotChecked=0, Total=702 [2020-07-19 23:44:34,728 INFO L87 Difference]: Start difference. First operand 153 states and 153 transitions. Second operand 27 states. [2020-07-19 23:44:34,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:34,996 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2020-07-19 23:44:34,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-19 23:44:34,997 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 150 [2020-07-19 23:44:34,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:34,998 INFO L225 Difference]: With dead ends: 163 [2020-07-19 23:44:34,999 INFO L226 Difference]: Without dead ends: 161 [2020-07-19 23:44:34,999 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 [2020-07-19 23:44:35,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-19 23:44:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 160. [2020-07-19 23:44:35,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-07-19 23:44:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2020-07-19 23:44:35,011 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 150 [2020-07-19 23:44:35,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:35,012 INFO L479 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2020-07-19 23:44:35,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-07-19 23:44:35,013 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2020-07-19 23:44:35,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-19 23:44:35,015 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:35,016 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:35,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-07-19 23:44:35,229 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:35,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:35,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1606887624, now seen corresponding path program 21 times [2020-07-19 23:44:35,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:35,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670228516] [2020-07-19 23:44:35,230 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:35,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-19 23:44:35,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670228516] [2020-07-19 23:44:35,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086049934] [2020-07-19 23:44:35,650 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e079912 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:35,727 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e079912 issued 4 check-sat command(s) [2020-07-19 23:44:35,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:35,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-19 23:44:35,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:35,752 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 42 proven. 672 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-19 23:44:35,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:35,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 28 [2020-07-19 23:44:35,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614528981] [2020-07-19 23:44:35,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-07-19 23:44:35,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:35,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-07-19 23:44:35,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=470, Unknown=0, NotChecked=0, Total=756 [2020-07-19 23:44:35,816 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand 28 states. [2020-07-19 23:44:36,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:36,079 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2020-07-19 23:44:36,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-19 23:44:36,081 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 157 [2020-07-19 23:44:36,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:36,083 INFO L225 Difference]: With dead ends: 170 [2020-07-19 23:44:36,083 INFO L226 Difference]: Without dead ends: 168 [2020-07-19 23:44:36,086 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 [2020-07-19 23:44:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-07-19 23:44:36,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2020-07-19 23:44:36,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-19 23:44:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2020-07-19 23:44:36,095 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 157 [2020-07-19 23:44:36,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:36,096 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2020-07-19 23:44:36,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-07-19 23:44:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2020-07-19 23:44:36,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-19 23:44:36,099 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:36,099 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:36,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-07-19 23:44:36,313 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:36,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:36,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1525225877, now seen corresponding path program 22 times [2020-07-19 23:44:36,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:36,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284380895] [2020-07-19 23:44:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-07-19 23:44:36,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284380895] [2020-07-19 23:44:36,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479213369] [2020-07-19 23:44:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7569e872 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 [2020-07-19 23:44:36,832 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7569e872 issued 4 check-sat command(s) [2020-07-19 23:44:36,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:36,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-19 23:44:36,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:36,858 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 44 proven. 737 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2020-07-19 23:44:36,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:36,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 29 [2020-07-19 23:44:36,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279309658] [2020-07-19 23:44:36,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-07-19 23:44:36,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:36,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-07-19 23:44:36,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=502, Unknown=0, NotChecked=0, Total=812 [2020-07-19 23:44:36,915 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand 29 states. [2020-07-19 23:44:37,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:37,207 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2020-07-19 23:44:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-19 23:44:37,207 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 164 [2020-07-19 23:44:37,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:37,209 INFO L225 Difference]: With dead ends: 177 [2020-07-19 23:44:37,209 INFO L226 Difference]: Without dead ends: 175 [2020-07-19 23:44:37,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=316, Invalid=554, Unknown=0, NotChecked=0, Total=870 [2020-07-19 23:44:37,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-07-19 23:44:37,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2020-07-19 23:44:37,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-19 23:44:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2020-07-19 23:44:37,220 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 164 [2020-07-19 23:44:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:37,220 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2020-07-19 23:44:37,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-07-19 23:44:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2020-07-19 23:44:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-19 23:44:37,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:37,223 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:37,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:37,438 INFO L427 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:37,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:37,439 INFO L82 PathProgramCache]: Analyzing trace with hash 302651432, now seen corresponding path program 23 times [2020-07-19 23:44:37,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:37,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137492562] [2020-07-19 23:44:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:37,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-07-19 23:44:37,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137492562] [2020-07-19 23:44:37,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873024304] [2020-07-19 23:44:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f239852 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:38,035 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f239852 issued 4 check-sat command(s) [2020-07-19 23:44:38,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:38,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 27 conjunts are in the unsatisfiable core [2020-07-19 23:44:38,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:38,076 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 46 proven. 805 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-07-19 23:44:38,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:38,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 30 [2020-07-19 23:44:38,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147099619] [2020-07-19 23:44:38,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-07-19 23:44:38,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:38,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-07-19 23:44:38,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=535, Unknown=0, NotChecked=0, Total=870 [2020-07-19 23:44:38,134 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand 30 states. [2020-07-19 23:44:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:38,450 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2020-07-19 23:44:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-19 23:44:38,451 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 171 [2020-07-19 23:44:38,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:38,453 INFO L225 Difference]: With dead ends: 184 [2020-07-19 23:44:38,454 INFO L226 Difference]: Without dead ends: 182 [2020-07-19 23:44:38,454 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 [2020-07-19 23:44:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-19 23:44:38,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2020-07-19 23:44:38,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-07-19 23:44:38,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2020-07-19 23:44:38,466 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 171 [2020-07-19 23:44:38,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:38,466 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2020-07-19 23:44:38,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-07-19 23:44:38,467 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2020-07-19 23:44:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-07-19 23:44:38,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:38,471 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:38,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2020-07-19 23:44:38,686 INFO L427 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:38,686 INFO L82 PathProgramCache]: Analyzing trace with hash 666639925, now seen corresponding path program 24 times [2020-07-19 23:44:38,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:38,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313990955] [2020-07-19 23:44:38,687 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:39,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-07-19 23:44:39,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313990955] [2020-07-19 23:44:39,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672809303] [2020-07-19 23:44:39,246 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70534202 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 [2020-07-19 23:44:39,304 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@70534202 issued 4 check-sat command(s) [2020-07-19 23:44:39,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:39,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 28 conjunts are in the unsatisfiable core [2020-07-19 23:44:39,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:39,326 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 48 proven. 876 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-07-19 23:44:39,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:39,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2020-07-19 23:44:39,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140233397] [2020-07-19 23:44:39,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-19 23:44:39,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:39,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-19 23:44:39,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=569, Unknown=0, NotChecked=0, Total=930 [2020-07-19 23:44:39,413 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand 31 states. [2020-07-19 23:44:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:39,706 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2020-07-19 23:44:39,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-19 23:44:39,710 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 178 [2020-07-19 23:44:39,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:39,711 INFO L225 Difference]: With dead ends: 191 [2020-07-19 23:44:39,711 INFO L226 Difference]: Without dead ends: 189 [2020-07-19 23:44:39,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=367, Invalid=625, Unknown=0, NotChecked=0, Total=992 [2020-07-19 23:44:39,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-07-19 23:44:39,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 188. [2020-07-19 23:44:39,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-19 23:44:39,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 188 transitions. [2020-07-19 23:44:39,721 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 188 transitions. Word has length 178 [2020-07-19 23:44:39,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:39,721 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 188 transitions. [2020-07-19 23:44:39,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-19 23:44:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 188 transitions. [2020-07-19 23:44:39,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-19 23:44:39,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:39,723 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:39,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:39,937 INFO L427 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:39,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:39,937 INFO L82 PathProgramCache]: Analyzing trace with hash 860266376, now seen corresponding path program 25 times [2020-07-19 23:44:39,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:39,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284750316] [2020-07-19 23:44:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-07-19 23:44:40,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284750316] [2020-07-19 23:44:40,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088626869] [2020-07-19 23:44:40,462 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@215c9219 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:40,529 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@215c9219 issued 4 check-sat command(s) [2020-07-19 23:44:40,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:40,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-19 23:44:40,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:40,550 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 50 proven. 950 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2020-07-19 23:44:40,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:40,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 32 [2020-07-19 23:44:40,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751025656] [2020-07-19 23:44:40,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-07-19 23:44:40,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:40,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-07-19 23:44:40,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=388, Invalid=604, Unknown=0, NotChecked=0, Total=992 [2020-07-19 23:44:40,616 INFO L87 Difference]: Start difference. First operand 188 states and 188 transitions. Second operand 32 states. [2020-07-19 23:44:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:40,923 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2020-07-19 23:44:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-07-19 23:44:40,923 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 185 [2020-07-19 23:44:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:40,925 INFO L225 Difference]: With dead ends: 198 [2020-07-19 23:44:40,925 INFO L226 Difference]: Without dead ends: 196 [2020-07-19 23:44:40,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=394, Invalid=662, Unknown=0, NotChecked=0, Total=1056 [2020-07-19 23:44:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-07-19 23:44:40,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2020-07-19 23:44:40,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-19 23:44:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2020-07-19 23:44:40,936 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 185 [2020-07-19 23:44:40,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:40,936 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 195 transitions. [2020-07-19 23:44:40,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-07-19 23:44:40,937 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 195 transitions. [2020-07-19 23:44:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-19 23:44:40,938 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:40,938 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:41,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-07-19 23:44:41,152 INFO L427 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:41,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:41,153 INFO L82 PathProgramCache]: Analyzing trace with hash 505055957, now seen corresponding path program 26 times [2020-07-19 23:44:41,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:41,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524128100] [2020-07-19 23:44:41,153 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2020-07-19 23:44:41,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524128100] [2020-07-19 23:44:41,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923916851] [2020-07-19 23:44:41,700 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6189f5b5 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 [2020-07-19 23:44:41,772 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6189f5b5 issued 4 check-sat command(s) [2020-07-19 23:44:41,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:41,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 30 conjunts are in the unsatisfiable core [2020-07-19 23:44:41,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:41,794 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 52 proven. 1027 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2020-07-19 23:44:41,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:41,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2020-07-19 23:44:41,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334160515] [2020-07-19 23:44:41,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-19 23:44:41,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:41,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-19 23:44:41,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=640, Unknown=0, NotChecked=0, Total=1056 [2020-07-19 23:44:41,864 INFO L87 Difference]: Start difference. First operand 195 states and 195 transitions. Second operand 33 states. [2020-07-19 23:44:42,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:42,234 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2020-07-19 23:44:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-19 23:44:42,234 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 192 [2020-07-19 23:44:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:42,236 INFO L225 Difference]: With dead ends: 205 [2020-07-19 23:44:42,236 INFO L226 Difference]: Without dead ends: 203 [2020-07-19 23:44:42,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=422, Invalid=700, Unknown=0, NotChecked=0, Total=1122 [2020-07-19 23:44:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-19 23:44:42,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2020-07-19 23:44:42,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-07-19 23:44:42,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2020-07-19 23:44:42,246 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 192 [2020-07-19 23:44:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:42,247 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2020-07-19 23:44:42,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-19 23:44:42,247 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2020-07-19 23:44:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-19 23:44:42,249 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:42,249 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:42,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-07-19 23:44:42,465 INFO L427 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:42,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:42,466 INFO L82 PathProgramCache]: Analyzing trace with hash -489505048, now seen corresponding path program 27 times [2020-07-19 23:44:42,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:42,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971654217] [2020-07-19 23:44:42,466 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:43,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2020-07-19 23:44:43,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971654217] [2020-07-19 23:44:43,050 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714468446] [2020-07-19 23:44:43,050 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4b232d01 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:43,120 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4b232d01 issued 4 check-sat command(s) [2020-07-19 23:44:43,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:43,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 31 conjunts are in the unsatisfiable core [2020-07-19 23:44:43,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:43,144 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:43,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2565 backedges. 54 proven. 1107 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2020-07-19 23:44:43,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:43,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 34 [2020-07-19 23:44:43,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16273587] [2020-07-19 23:44:43,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-07-19 23:44:43,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:43,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-07-19 23:44:43,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=445, Invalid=677, Unknown=0, NotChecked=0, Total=1122 [2020-07-19 23:44:43,221 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand 34 states. [2020-07-19 23:44:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:43,512 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2020-07-19 23:44:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-19 23:44:43,513 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 199 [2020-07-19 23:44:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:43,514 INFO L225 Difference]: With dead ends: 212 [2020-07-19 23:44:43,514 INFO L226 Difference]: Without dead ends: 210 [2020-07-19 23:44:43,515 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 [2020-07-19 23:44:43,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-07-19 23:44:43,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2020-07-19 23:44:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-07-19 23:44:43,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2020-07-19 23:44:43,525 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 199 [2020-07-19 23:44:43,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:43,525 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2020-07-19 23:44:43,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-07-19 23:44:43,525 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2020-07-19 23:44:43,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-19 23:44:43,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:43,527 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:43,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2020-07-19 23:44:43,741 INFO L427 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:43,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:43,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1374576501, now seen corresponding path program 28 times [2020-07-19 23:44:43,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:43,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155485402] [2020-07-19 23:44:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:44,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2020-07-19 23:44:44,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155485402] [2020-07-19 23:44:44,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061317603] [2020-07-19 23:44:44,352 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e5303ee 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 [2020-07-19 23:44:44,424 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@e5303ee issued 4 check-sat command(s) [2020-07-19 23:44:44,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:44,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 32 conjunts are in the unsatisfiable core [2020-07-19 23:44:44,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:44,448 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:44,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2758 backedges. 56 proven. 1190 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2020-07-19 23:44:44,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:44,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 35 [2020-07-19 23:44:44,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4626583] [2020-07-19 23:44:44,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-07-19 23:44:44,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:44,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-07-19 23:44:44,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=475, Invalid=715, Unknown=0, NotChecked=0, Total=1190 [2020-07-19 23:44:44,527 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand 35 states. [2020-07-19 23:44:44,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:44,880 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2020-07-19 23:44:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-19 23:44:44,881 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 206 [2020-07-19 23:44:44,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:44,883 INFO L225 Difference]: With dead ends: 219 [2020-07-19 23:44:44,883 INFO L226 Difference]: Without dead ends: 217 [2020-07-19 23:44:44,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=779, Unknown=0, NotChecked=0, Total=1260 [2020-07-19 23:44:44,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-19 23:44:44,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2020-07-19 23:44:44,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-19 23:44:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2020-07-19 23:44:44,901 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 206 [2020-07-19 23:44:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:44,902 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2020-07-19 23:44:44,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-07-19 23:44:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2020-07-19 23:44:44,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-19 23:44:44,904 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:44,904 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:45,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2020-07-19 23:44:45,119 INFO L427 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:45,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:45,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1316719032, now seen corresponding path program 29 times [2020-07-19 23:44:45,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:45,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718521639] [2020-07-19 23:44:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:45,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-07-19 23:44:45,847 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718521639] [2020-07-19 23:44:45,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751138848] [2020-07-19 23:44:45,848 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@19c56555 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:45,925 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@19c56555 issued 4 check-sat command(s) [2020-07-19 23:44:45,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:45,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 33 conjunts are in the unsatisfiable core [2020-07-19 23:44:45,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:45,950 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:46,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2958 backedges. 58 proven. 1276 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2020-07-19 23:44:46,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:46,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 36 [2020-07-19 23:44:46,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200336100] [2020-07-19 23:44:46,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-07-19 23:44:46,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:46,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-07-19 23:44:46,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=506, Invalid=754, Unknown=0, NotChecked=0, Total=1260 [2020-07-19 23:44:46,034 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand 36 states. [2020-07-19 23:44:46,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:46,449 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2020-07-19 23:44:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-19 23:44:46,450 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 213 [2020-07-19 23:44:46,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:46,453 INFO L225 Difference]: With dead ends: 226 [2020-07-19 23:44:46,453 INFO L226 Difference]: Without dead ends: 224 [2020-07-19 23:44:46,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=512, Invalid=820, Unknown=0, NotChecked=0, Total=1332 [2020-07-19 23:44:46,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-19 23:44:46,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 223. [2020-07-19 23:44:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-07-19 23:44:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2020-07-19 23:44:46,464 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 213 [2020-07-19 23:44:46,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:46,465 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2020-07-19 23:44:46,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-07-19 23:44:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2020-07-19 23:44:46,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-07-19 23:44:46,466 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:46,467 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:46,681 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:46,682 INFO L427 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:46,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:46,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1247699947, now seen corresponding path program 30 times [2020-07-19 23:44:46,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:46,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734977902] [2020-07-19 23:44:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2020-07-19 23:44:47,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734977902] [2020-07-19 23:44:47,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031543891] [2020-07-19 23:44:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f0b65c7 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 [2020-07-19 23:44:47,443 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2f0b65c7 issued 4 check-sat command(s) [2020-07-19 23:44:47,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:47,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 34 conjunts are in the unsatisfiable core [2020-07-19 23:44:47,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:47,471 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:47,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3165 backedges. 60 proven. 1365 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2020-07-19 23:44:47,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:47,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2020-07-19 23:44:47,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150639972] [2020-07-19 23:44:47,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-07-19 23:44:47,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:47,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-07-19 23:44:47,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=538, Invalid=794, Unknown=0, NotChecked=0, Total=1332 [2020-07-19 23:44:47,558 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand 37 states. [2020-07-19 23:44:47,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:47,863 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2020-07-19 23:44:47,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-07-19 23:44:47,864 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 220 [2020-07-19 23:44:47,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:47,866 INFO L225 Difference]: With dead ends: 233 [2020-07-19 23:44:47,866 INFO L226 Difference]: Without dead ends: 231 [2020-07-19 23:44:47,867 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 [2020-07-19 23:44:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-19 23:44:47,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 230. [2020-07-19 23:44:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-19 23:44:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2020-07-19 23:44:47,875 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 220 [2020-07-19 23:44:47,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:47,876 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2020-07-19 23:44:47,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-07-19 23:44:47,876 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2020-07-19 23:44:47,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-19 23:44:47,878 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:47,878 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:48,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:48,094 INFO L427 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:48,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:48,095 INFO L82 PathProgramCache]: Analyzing trace with hash 28427688, now seen corresponding path program 31 times [2020-07-19 23:44:48,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:48,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346058056] [2020-07-19 23:44:48,096 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:48,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-07-19 23:44:48,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346058056] [2020-07-19 23:44:48,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701580810] [2020-07-19 23:44:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a0e111d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:48,906 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a0e111d issued 4 check-sat command(s) [2020-07-19 23:44:48,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:48,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-19 23:44:48,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:48,929 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:49,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3379 backedges. 62 proven. 1457 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2020-07-19 23:44:49,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:49,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 38 [2020-07-19 23:44:49,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573350947] [2020-07-19 23:44:49,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-07-19 23:44:49,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:49,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-07-19 23:44:49,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=571, Invalid=835, Unknown=0, NotChecked=0, Total=1406 [2020-07-19 23:44:49,020 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand 38 states. [2020-07-19 23:44:49,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:49,439 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2020-07-19 23:44:49,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-07-19 23:44:49,439 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 227 [2020-07-19 23:44:49,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:49,441 INFO L225 Difference]: With dead ends: 240 [2020-07-19 23:44:49,441 INFO L226 Difference]: Without dead ends: 238 [2020-07-19 23:44:49,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=577, Invalid=905, Unknown=0, NotChecked=0, Total=1482 [2020-07-19 23:44:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-19 23:44:49,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2020-07-19 23:44:49,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-07-19 23:44:49,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2020-07-19 23:44:49,452 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 227 [2020-07-19 23:44:49,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:49,452 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2020-07-19 23:44:49,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-07-19 23:44:49,452 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2020-07-19 23:44:49,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-07-19 23:44:49,454 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:49,454 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:49,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:49,666 INFO L427 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:49,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1172422475, now seen corresponding path program 32 times [2020-07-19 23:44:49,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:49,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245241846] [2020-07-19 23:44:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2020-07-19 23:44:50,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245241846] [2020-07-19 23:44:50,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785341743] [2020-07-19 23:44:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@36088b00 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 [2020-07-19 23:44:50,538 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@36088b00 issued 4 check-sat command(s) [2020-07-19 23:44:50,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:50,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 36 conjunts are in the unsatisfiable core [2020-07-19 23:44:50,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:50,562 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 64 proven. 1552 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2020-07-19 23:44:50,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:50,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 39 [2020-07-19 23:44:50,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031236559] [2020-07-19 23:44:50,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-07-19 23:44:50,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:50,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-07-19 23:44:50,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=605, Invalid=877, Unknown=0, NotChecked=0, Total=1482 [2020-07-19 23:44:50,645 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand 39 states. [2020-07-19 23:44:51,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:51,108 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2020-07-19 23:44:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-19 23:44:51,108 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 234 [2020-07-19 23:44:51,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:51,110 INFO L225 Difference]: With dead ends: 247 [2020-07-19 23:44:51,110 INFO L226 Difference]: Without dead ends: 245 [2020-07-19 23:44:51,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=611, Invalid=949, Unknown=0, NotChecked=0, Total=1560 [2020-07-19 23:44:51,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-07-19 23:44:51,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 244. [2020-07-19 23:44:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-07-19 23:44:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 244 transitions. [2020-07-19 23:44:51,123 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 244 transitions. Word has length 234 [2020-07-19 23:44:51,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:51,123 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 244 transitions. [2020-07-19 23:44:51,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-07-19 23:44:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 244 transitions. [2020-07-19 23:44:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-19 23:44:51,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:51,126 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:51,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2020-07-19 23:44:51,327 INFO L427 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:51,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:51,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1731243272, now seen corresponding path program 33 times [2020-07-19 23:44:51,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:51,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913705485] [2020-07-19 23:44:51,328 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2020-07-19 23:44:52,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913705485] [2020-07-19 23:44:52,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899305332] [2020-07-19 23:44:52,087 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a82788b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:52,162 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5a82788b issued 4 check-sat command(s) [2020-07-19 23:44:52,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:52,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-19 23:44:52,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:52,190 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3828 backedges. 66 proven. 1650 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2020-07-19 23:44:52,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:52,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 40 [2020-07-19 23:44:52,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699259023] [2020-07-19 23:44:52,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-07-19 23:44:52,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:52,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-07-19 23:44:52,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=640, Invalid=920, Unknown=0, NotChecked=0, Total=1560 [2020-07-19 23:44:52,275 INFO L87 Difference]: Start difference. First operand 244 states and 244 transitions. Second operand 40 states. [2020-07-19 23:44:52,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:52,647 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2020-07-19 23:44:52,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-07-19 23:44:52,652 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 241 [2020-07-19 23:44:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:52,653 INFO L225 Difference]: With dead ends: 254 [2020-07-19 23:44:52,654 INFO L226 Difference]: Without dead ends: 252 [2020-07-19 23:44:52,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=646, Invalid=994, Unknown=0, NotChecked=0, Total=1640 [2020-07-19 23:44:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-07-19 23:44:52,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2020-07-19 23:44:52,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-19 23:44:52,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2020-07-19 23:44:52,663 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 241 [2020-07-19 23:44:52,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:52,664 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2020-07-19 23:44:52,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-07-19 23:44:52,664 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2020-07-19 23:44:52,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-07-19 23:44:52,665 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:52,665 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:52,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:52,880 INFO L427 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:52,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:52,880 INFO L82 PathProgramCache]: Analyzing trace with hash -288469675, now seen corresponding path program 34 times [2020-07-19 23:44:52,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:52,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958521500] [2020-07-19 23:44:52,881 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2020-07-19 23:44:53,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958521500] [2020-07-19 23:44:53,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94818598] [2020-07-19 23:44:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65ac2d3d 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 [2020-07-19 23:44:53,800 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65ac2d3d issued 4 check-sat command(s) [2020-07-19 23:44:53,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:53,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 38 conjunts are in the unsatisfiable core [2020-07-19 23:44:53,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:53,825 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4063 backedges. 68 proven. 1751 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2020-07-19 23:44:53,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:53,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 41 [2020-07-19 23:44:53,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847538228] [2020-07-19 23:44:53,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-07-19 23:44:53,923 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:53,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-07-19 23:44:53,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=676, Invalid=964, Unknown=0, NotChecked=0, Total=1640 [2020-07-19 23:44:53,924 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand 41 states. [2020-07-19 23:44:54,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:54,376 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2020-07-19 23:44:54,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-07-19 23:44:54,379 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 248 [2020-07-19 23:44:54,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:54,381 INFO L225 Difference]: With dead ends: 261 [2020-07-19 23:44:54,381 INFO L226 Difference]: Without dead ends: 259 [2020-07-19 23:44:54,381 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 [2020-07-19 23:44:54,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-19 23:44:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 258. [2020-07-19 23:44:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-07-19 23:44:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 258 transitions. [2020-07-19 23:44:54,391 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 258 transitions. Word has length 248 [2020-07-19 23:44:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:54,391 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 258 transitions. [2020-07-19 23:44:54,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-07-19 23:44:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 258 transitions. [2020-07-19 23:44:54,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-07-19 23:44:54,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:54,393 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:54,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2020-07-19 23:44:54,608 INFO L427 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:54,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:54,608 INFO L82 PathProgramCache]: Analyzing trace with hash 123153512, now seen corresponding path program 35 times [2020-07-19 23:44:54,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:54,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873977586] [2020-07-19 23:44:54,609 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-07-19 23:44:55,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873977586] [2020-07-19 23:44:55,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276132082] [2020-07-19 23:44:55,467 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c9e250a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:55,565 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7c9e250a issued 4 check-sat command(s) [2020-07-19 23:44:55,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:55,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-19 23:44:55,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:55,597 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 70 proven. 1855 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2020-07-19 23:44:55,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:55,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 42 [2020-07-19 23:44:55,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210214044] [2020-07-19 23:44:55,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-07-19 23:44:55,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:55,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-07-19 23:44:55,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=1009, Unknown=0, NotChecked=0, Total=1722 [2020-07-19 23:44:55,714 INFO L87 Difference]: Start difference. First operand 258 states and 258 transitions. Second operand 42 states. [2020-07-19 23:44:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:56,296 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2020-07-19 23:44:56,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-19 23:44:56,296 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 255 [2020-07-19 23:44:56,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:56,299 INFO L225 Difference]: With dead ends: 268 [2020-07-19 23:44:56,299 INFO L226 Difference]: Without dead ends: 266 [2020-07-19 23:44:56,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=719, Invalid=1087, Unknown=0, NotChecked=0, Total=1806 [2020-07-19 23:44:56,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-19 23:44:56,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 265. [2020-07-19 23:44:56,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-07-19 23:44:56,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 265 transitions. [2020-07-19 23:44:56,315 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 265 transitions. Word has length 255 [2020-07-19 23:44:56,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:56,316 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 265 transitions. [2020-07-19 23:44:56,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-07-19 23:44:56,316 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 265 transitions. [2020-07-19 23:44:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-07-19 23:44:56,319 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:56,319 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:56,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:56,533 INFO L427 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:56,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:56,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1583627787, now seen corresponding path program 36 times [2020-07-19 23:44:56,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:56,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381439786] [2020-07-19 23:44:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:57,485 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2020-07-19 23:44:57,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381439786] [2020-07-19 23:44:57,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009671806] [2020-07-19 23:44:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75a69f3c 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 [2020-07-19 23:44:57,576 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75a69f3c issued 4 check-sat command(s) [2020-07-19 23:44:57,576 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:57,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 40 conjunts are in the unsatisfiable core [2020-07-19 23:44:57,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:57,602 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 4554 backedges. 72 proven. 1962 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2020-07-19 23:44:57,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:57,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2020-07-19 23:44:57,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446330190] [2020-07-19 23:44:57,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-07-19 23:44:57,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:57,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-07-19 23:44:57,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=751, Invalid=1055, Unknown=0, NotChecked=0, Total=1806 [2020-07-19 23:44:57,719 INFO L87 Difference]: Start difference. First operand 265 states and 265 transitions. Second operand 43 states. [2020-07-19 23:44:58,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:44:58,162 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2020-07-19 23:44:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-07-19 23:44:58,163 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 262 [2020-07-19 23:44:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:44:58,165 INFO L225 Difference]: With dead ends: 275 [2020-07-19 23:44:58,165 INFO L226 Difference]: Without dead ends: 273 [2020-07-19 23:44:58,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=757, Invalid=1135, Unknown=0, NotChecked=0, Total=1892 [2020-07-19 23:44:58,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-07-19 23:44:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 272. [2020-07-19 23:44:58,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-19 23:44:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2020-07-19 23:44:58,176 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 262 [2020-07-19 23:44:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:44:58,176 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2020-07-19 23:44:58,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-07-19 23:44:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2020-07-19 23:44:58,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-19 23:44:58,178 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:44:58,178 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:44:58,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-07-19 23:44:58,394 INFO L427 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:44:58,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:44:58,394 INFO L82 PathProgramCache]: Analyzing trace with hash -117750840, now seen corresponding path program 37 times [2020-07-19 23:44:58,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:44:58,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441380458] [2020-07-19 23:44:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:44:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:44:59,698 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2020-07-19 23:44:59,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441380458] [2020-07-19 23:44:59,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719283699] [2020-07-19 23:44:59,699 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@ab84a31 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:44:59,797 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@ab84a31 issued 4 check-sat command(s) [2020-07-19 23:44:59,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:44:59,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-19 23:44:59,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:44:59,826 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:44:59,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 74 proven. 2072 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2020-07-19 23:44:59,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:44:59,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 44 [2020-07-19 23:44:59,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259465839] [2020-07-19 23:44:59,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-07-19 23:44:59,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:44:59,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-07-19 23:44:59,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=790, Invalid=1102, Unknown=0, NotChecked=0, Total=1892 [2020-07-19 23:44:59,943 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand 44 states. [2020-07-19 23:45:00,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:00,388 INFO L93 Difference]: Finished difference Result 282 states and 282 transitions. [2020-07-19 23:45:00,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-07-19 23:45:00,388 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 269 [2020-07-19 23:45:00,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:00,391 INFO L225 Difference]: With dead ends: 282 [2020-07-19 23:45:00,391 INFO L226 Difference]: Without dead ends: 280 [2020-07-19 23:45:00,393 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=796, Invalid=1184, Unknown=0, NotChecked=0, Total=1980 [2020-07-19 23:45:00,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-07-19 23:45:00,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 279. [2020-07-19 23:45:00,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-07-19 23:45:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 279 transitions. [2020-07-19 23:45:00,401 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 279 transitions. Word has length 269 [2020-07-19 23:45:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:00,402 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 279 transitions. [2020-07-19 23:45:00,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-07-19 23:45:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 279 transitions. [2020-07-19 23:45:00,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-07-19 23:45:00,404 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:00,404 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:00,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2020-07-19 23:45:00,611 INFO L427 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:00,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:00,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2129698453, now seen corresponding path program 38 times [2020-07-19 23:45:00,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:00,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009243316] [2020-07-19 23:45:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:01,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2020-07-19 23:45:01,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009243316] [2020-07-19 23:45:01,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097023921] [2020-07-19 23:45:01,663 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9a63ca0 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 [2020-07-19 23:45:01,748 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9a63ca0 issued 4 check-sat command(s) [2020-07-19 23:45:01,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:01,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 42 conjunts are in the unsatisfiable core [2020-07-19 23:45:01,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:01,776 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:01,877 INFO L134 CoverageAnalysis]: Checked inductivity of 5073 backedges. 76 proven. 2185 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2020-07-19 23:45:01,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:01,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2020-07-19 23:45:01,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253183301] [2020-07-19 23:45:01,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-07-19 23:45:01,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:01,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-07-19 23:45:01,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=830, Invalid=1150, Unknown=0, NotChecked=0, Total=1980 [2020-07-19 23:45:01,881 INFO L87 Difference]: Start difference. First operand 279 states and 279 transitions. Second operand 45 states. [2020-07-19 23:45:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:02,390 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2020-07-19 23:45:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-07-19 23:45:02,391 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 276 [2020-07-19 23:45:02,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:02,394 INFO L225 Difference]: With dead ends: 289 [2020-07-19 23:45:02,394 INFO L226 Difference]: Without dead ends: 287 [2020-07-19 23:45:02,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=836, Invalid=1234, Unknown=0, NotChecked=0, Total=2070 [2020-07-19 23:45:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-07-19 23:45:02,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2020-07-19 23:45:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-19 23:45:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2020-07-19 23:45:02,407 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 276 [2020-07-19 23:45:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:02,408 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2020-07-19 23:45:02,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-07-19 23:45:02,409 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2020-07-19 23:45:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-07-19 23:45:02,412 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:02,412 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:02,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-07-19 23:45:02,627 INFO L427 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:02,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:02,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1535970520, now seen corresponding path program 39 times [2020-07-19 23:45:02,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:02,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741218265] [2020-07-19 23:45:02,629 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2020-07-19 23:45:03,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741218265] [2020-07-19 23:45:03,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696616211] [2020-07-19 23:45:03,729 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33f0bc1b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:03,830 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33f0bc1b issued 4 check-sat command(s) [2020-07-19 23:45:03,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:03,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 43 conjunts are in the unsatisfiable core [2020-07-19 23:45:03,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:03,857 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5343 backedges. 78 proven. 2301 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2020-07-19 23:45:03,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:03,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 46 [2020-07-19 23:45:03,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2854281] [2020-07-19 23:45:03,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-07-19 23:45:03,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:03,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-07-19 23:45:03,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=1199, Unknown=0, NotChecked=0, Total=2070 [2020-07-19 23:45:03,976 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand 46 states. [2020-07-19 23:45:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:04,428 INFO L93 Difference]: Finished difference Result 296 states and 296 transitions. [2020-07-19 23:45:04,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-07-19 23:45:04,428 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 283 [2020-07-19 23:45:04,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:04,430 INFO L225 Difference]: With dead ends: 296 [2020-07-19 23:45:04,430 INFO L226 Difference]: Without dead ends: 294 [2020-07-19 23:45:04,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=877, Invalid=1285, Unknown=0, NotChecked=0, Total=2162 [2020-07-19 23:45:04,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-19 23:45:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 293. [2020-07-19 23:45:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-07-19 23:45:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 293 transitions. [2020-07-19 23:45:04,442 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 293 transitions. Word has length 283 [2020-07-19 23:45:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:04,442 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 293 transitions. [2020-07-19 23:45:04,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-07-19 23:45:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 293 transitions. [2020-07-19 23:45:04,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-07-19 23:45:04,444 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:04,445 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:04,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-07-19 23:45:04,649 INFO L427 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:04,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:04,650 INFO L82 PathProgramCache]: Analyzing trace with hash 834069301, now seen corresponding path program 40 times [2020-07-19 23:45:04,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:04,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464276940] [2020-07-19 23:45:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2020-07-19 23:45:05,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464276940] [2020-07-19 23:45:05,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335543683] [2020-07-19 23:45:05,820 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@31d5032 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 [2020-07-19 23:45:05,916 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@31d5032 issued 4 check-sat command(s) [2020-07-19 23:45:05,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:05,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 44 conjunts are in the unsatisfiable core [2020-07-19 23:45:05,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:05,945 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5620 backedges. 80 proven. 2420 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2020-07-19 23:45:06,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:06,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 47 [2020-07-19 23:45:06,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006758990] [2020-07-19 23:45:06,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-07-19 23:45:06,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:06,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-07-19 23:45:06,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=1249, Unknown=0, NotChecked=0, Total=2162 [2020-07-19 23:45:06,070 INFO L87 Difference]: Start difference. First operand 293 states and 293 transitions. Second operand 47 states. [2020-07-19 23:45:06,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:06,593 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2020-07-19 23:45:06,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-19 23:45:06,594 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 290 [2020-07-19 23:45:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:06,595 INFO L225 Difference]: With dead ends: 303 [2020-07-19 23:45:06,595 INFO L226 Difference]: Without dead ends: 301 [2020-07-19 23:45:06,596 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 [2020-07-19 23:45:06,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-07-19 23:45:06,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2020-07-19 23:45:06,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-07-19 23:45:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 300 transitions. [2020-07-19 23:45:06,605 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 300 transitions. Word has length 290 [2020-07-19 23:45:06,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:06,606 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 300 transitions. [2020-07-19 23:45:06,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-07-19 23:45:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 300 transitions. [2020-07-19 23:45:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-07-19 23:45:06,608 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:06,608 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:06,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:06,822 INFO L427 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:06,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:06,822 INFO L82 PathProgramCache]: Analyzing trace with hash 596916872, now seen corresponding path program 41 times [2020-07-19 23:45:06,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:06,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402195975] [2020-07-19 23:45:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:07,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2020-07-19 23:45:08,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402195975] [2020-07-19 23:45:08,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684016725] [2020-07-19 23:45:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@37717376 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:08,098 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@37717376 issued 4 check-sat command(s) [2020-07-19 23:45:08,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:08,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 45 conjunts are in the unsatisfiable core [2020-07-19 23:45:08,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:08,124 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:08,270 INFO L134 CoverageAnalysis]: Checked inductivity of 5904 backedges. 82 proven. 2542 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2020-07-19 23:45:08,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:08,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 48 [2020-07-19 23:45:08,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264540208] [2020-07-19 23:45:08,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-07-19 23:45:08,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:08,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-07-19 23:45:08,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=1300, Unknown=0, NotChecked=0, Total=2256 [2020-07-19 23:45:08,272 INFO L87 Difference]: Start difference. First operand 300 states and 300 transitions. Second operand 48 states. [2020-07-19 23:45:08,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:08,814 INFO L93 Difference]: Finished difference Result 310 states and 310 transitions. [2020-07-19 23:45:08,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-07-19 23:45:08,814 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 297 [2020-07-19 23:45:08,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:08,817 INFO L225 Difference]: With dead ends: 310 [2020-07-19 23:45:08,817 INFO L226 Difference]: Without dead ends: 308 [2020-07-19 23:45:08,818 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 [2020-07-19 23:45:08,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-07-19 23:45:08,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 307. [2020-07-19 23:45:08,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-07-19 23:45:08,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 307 transitions. [2020-07-19 23:45:08,826 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 307 transitions. Word has length 297 [2020-07-19 23:45:08,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:08,827 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 307 transitions. [2020-07-19 23:45:08,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-07-19 23:45:08,827 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 307 transitions. [2020-07-19 23:45:08,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-07-19 23:45:08,829 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:08,829 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:09,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2020-07-19 23:45:09,044 INFO L427 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:09,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:09,044 INFO L82 PathProgramCache]: Analyzing trace with hash 56135637, now seen corresponding path program 42 times [2020-07-19 23:45:09,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:09,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924313671] [2020-07-19 23:45:09,045 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:10,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2020-07-19 23:45:10,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924313671] [2020-07-19 23:45:10,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344551669] [2020-07-19 23:45:10,320 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@359d207d 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 [2020-07-19 23:45:10,417 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@359d207d issued 4 check-sat command(s) [2020-07-19 23:45:10,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:10,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 46 conjunts are in the unsatisfiable core [2020-07-19 23:45:10,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:10,445 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:10,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6195 backedges. 84 proven. 2667 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2020-07-19 23:45:10,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:10,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2020-07-19 23:45:10,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589904771] [2020-07-19 23:45:10,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-07-19 23:45:10,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:10,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-07-19 23:45:10,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1000, Invalid=1352, Unknown=0, NotChecked=0, Total=2352 [2020-07-19 23:45:10,579 INFO L87 Difference]: Start difference. First operand 307 states and 307 transitions. Second operand 49 states. [2020-07-19 23:45:11,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:11,049 INFO L93 Difference]: Finished difference Result 317 states and 317 transitions. [2020-07-19 23:45:11,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-07-19 23:45:11,050 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 304 [2020-07-19 23:45:11,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:11,052 INFO L225 Difference]: With dead ends: 317 [2020-07-19 23:45:11,053 INFO L226 Difference]: Without dead ends: 315 [2020-07-19 23:45:11,053 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 [2020-07-19 23:45:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-07-19 23:45:11,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 314. [2020-07-19 23:45:11,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-07-19 23:45:11,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 314 transitions. [2020-07-19 23:45:11,062 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 314 transitions. Word has length 304 [2020-07-19 23:45:11,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:11,063 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 314 transitions. [2020-07-19 23:45:11,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-07-19 23:45:11,063 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 314 transitions. [2020-07-19 23:45:11,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-07-19 23:45:11,065 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:11,065 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:11,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:11,281 INFO L427 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:11,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:11,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1581966872, now seen corresponding path program 43 times [2020-07-19 23:45:11,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:11,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446889090] [2020-07-19 23:45:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:12,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2020-07-19 23:45:12,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446889090] [2020-07-19 23:45:12,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330904517] [2020-07-19 23:45:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5056b8ac No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:12,655 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5056b8ac issued 4 check-sat command(s) [2020-07-19 23:45:12,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:12,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 47 conjunts are in the unsatisfiable core [2020-07-19 23:45:12,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:12,680 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6493 backedges. 86 proven. 2795 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2020-07-19 23:45:12,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:12,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 50 [2020-07-19 23:45:12,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101903356] [2020-07-19 23:45:12,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-07-19 23:45:12,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:12,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-07-19 23:45:12,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1045, Invalid=1405, Unknown=0, NotChecked=0, Total=2450 [2020-07-19 23:45:12,811 INFO L87 Difference]: Start difference. First operand 314 states and 314 transitions. Second operand 50 states. [2020-07-19 23:45:13,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:13,413 INFO L93 Difference]: Finished difference Result 324 states and 324 transitions. [2020-07-19 23:45:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-07-19 23:45:13,414 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 311 [2020-07-19 23:45:13,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:13,416 INFO L225 Difference]: With dead ends: 324 [2020-07-19 23:45:13,416 INFO L226 Difference]: Without dead ends: 322 [2020-07-19 23:45:13,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1051, Invalid=1499, Unknown=0, NotChecked=0, Total=2550 [2020-07-19 23:45:13,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-07-19 23:45:13,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2020-07-19 23:45:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-07-19 23:45:13,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2020-07-19 23:45:13,426 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 311 [2020-07-19 23:45:13,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:13,426 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2020-07-19 23:45:13,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-07-19 23:45:13,427 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2020-07-19 23:45:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2020-07-19 23:45:13,429 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:13,429 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:13,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:13,643 INFO L427 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:13,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:13,643 INFO L82 PathProgramCache]: Analyzing trace with hash 2076157045, now seen corresponding path program 44 times [2020-07-19 23:45:13,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:13,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525960067] [2020-07-19 23:45:13,644 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2020-07-19 23:45:14,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525960067] [2020-07-19 23:45:14,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110319617] [2020-07-19 23:45:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6dac7872 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 [2020-07-19 23:45:15,069 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6dac7872 issued 4 check-sat command(s) [2020-07-19 23:45:15,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:15,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-19 23:45:15,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:15,101 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:15,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6798 backedges. 88 proven. 2926 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2020-07-19 23:45:15,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:15,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 51 [2020-07-19 23:45:15,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547047661] [2020-07-19 23:45:15,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-07-19 23:45:15,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:15,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-07-19 23:45:15,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1091, Invalid=1459, Unknown=0, NotChecked=0, Total=2550 [2020-07-19 23:45:15,252 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand 51 states. [2020-07-19 23:45:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:15,809 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2020-07-19 23:45:15,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-07-19 23:45:15,812 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 318 [2020-07-19 23:45:15,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:15,814 INFO L225 Difference]: With dead ends: 331 [2020-07-19 23:45:15,814 INFO L226 Difference]: Without dead ends: 329 [2020-07-19 23:45:15,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1097, Invalid=1555, Unknown=0, NotChecked=0, Total=2652 [2020-07-19 23:45:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-07-19 23:45:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 328. [2020-07-19 23:45:15,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-07-19 23:45:15,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 328 transitions. [2020-07-19 23:45:15,823 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 328 transitions. Word has length 318 [2020-07-19 23:45:15,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:15,824 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 328 transitions. [2020-07-19 23:45:15,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-07-19 23:45:15,824 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 328 transitions. [2020-07-19 23:45:15,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-07-19 23:45:15,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:15,826 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:16,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2020-07-19 23:45:16,040 INFO L427 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:16,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1146384056, now seen corresponding path program 45 times [2020-07-19 23:45:16,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:16,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110721739] [2020-07-19 23:45:16,040 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 90 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2020-07-19 23:45:17,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110721739] [2020-07-19 23:45:17,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129568551] [2020-07-19 23:45:17,433 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c77a992 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:17,529 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c77a992 issued 4 check-sat command(s) [2020-07-19 23:45:17,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:17,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 49 conjunts are in the unsatisfiable core [2020-07-19 23:45:17,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:17,557 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 7110 backedges. 90 proven. 3060 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2020-07-19 23:45:17,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:17,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 52 [2020-07-19 23:45:17,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955029079] [2020-07-19 23:45:17,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-07-19 23:45:17,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:17,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-07-19 23:45:17,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1138, Invalid=1514, Unknown=0, NotChecked=0, Total=2652 [2020-07-19 23:45:17,702 INFO L87 Difference]: Start difference. First operand 328 states and 328 transitions. Second operand 52 states. [2020-07-19 23:45:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:18,290 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2020-07-19 23:45:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-07-19 23:45:18,291 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 325 [2020-07-19 23:45:18,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:18,293 INFO L225 Difference]: With dead ends: 338 [2020-07-19 23:45:18,294 INFO L226 Difference]: Without dead ends: 336 [2020-07-19 23:45:18,294 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 [2020-07-19 23:45:18,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-07-19 23:45:18,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 335. [2020-07-19 23:45:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-19 23:45:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 335 transitions. [2020-07-19 23:45:18,303 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 335 transitions. Word has length 325 [2020-07-19 23:45:18,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:18,303 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 335 transitions. [2020-07-19 23:45:18,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-07-19 23:45:18,304 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 335 transitions. [2020-07-19 23:45:18,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-07-19 23:45:18,306 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:18,306 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:18,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2020-07-19 23:45:18,520 INFO L427 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:18,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:18,520 INFO L82 PathProgramCache]: Analyzing trace with hash 22421781, now seen corresponding path program 46 times [2020-07-19 23:45:18,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:18,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846434185] [2020-07-19 23:45:18,521 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:19,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 92 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2020-07-19 23:45:20,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846434185] [2020-07-19 23:45:20,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414104171] [2020-07-19 23:45:20,042 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@25399ba 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 [2020-07-19 23:45:20,129 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@25399ba issued 4 check-sat command(s) [2020-07-19 23:45:20,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:20,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 50 conjunts are in the unsatisfiable core [2020-07-19 23:45:20,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:20,158 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 92 proven. 3197 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2020-07-19 23:45:20,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:20,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 53 [2020-07-19 23:45:20,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779524508] [2020-07-19 23:45:20,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-07-19 23:45:20,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:20,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-07-19 23:45:20,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1186, Invalid=1570, Unknown=0, NotChecked=0, Total=2756 [2020-07-19 23:45:20,282 INFO L87 Difference]: Start difference. First operand 335 states and 335 transitions. Second operand 53 states. [2020-07-19 23:45:20,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:20,962 INFO L93 Difference]: Finished difference Result 345 states and 345 transitions. [2020-07-19 23:45:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-07-19 23:45:20,963 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 332 [2020-07-19 23:45:20,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:20,966 INFO L225 Difference]: With dead ends: 345 [2020-07-19 23:45:20,966 INFO L226 Difference]: Without dead ends: 343 [2020-07-19 23:45:20,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1192, Invalid=1670, Unknown=0, NotChecked=0, Total=2862 [2020-07-19 23:45:20,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-19 23:45:20,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 342. [2020-07-19 23:45:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-07-19 23:45:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 342 transitions. [2020-07-19 23:45:20,976 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 342 transitions. Word has length 332 [2020-07-19 23:45:20,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:20,977 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 342 transitions. [2020-07-19 23:45:20,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-07-19 23:45:20,977 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 342 transitions. [2020-07-19 23:45:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-07-19 23:45:20,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:20,980 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:21,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2020-07-19 23:45:21,193 INFO L427 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:21,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:21,193 INFO L82 PathProgramCache]: Analyzing trace with hash -540172120, now seen corresponding path program 47 times [2020-07-19 23:45:21,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:21,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608291181] [2020-07-19 23:45:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:22,704 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 94 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2020-07-19 23:45:22,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608291181] [2020-07-19 23:45:22,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107323303] [2020-07-19 23:45:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@c4617aa No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:22,796 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@c4617aa issued 4 check-sat command(s) [2020-07-19 23:45:22,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:22,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 51 conjunts are in the unsatisfiable core [2020-07-19 23:45:22,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:22,822 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 7755 backedges. 94 proven. 3337 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2020-07-19 23:45:23,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:23,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 54 [2020-07-19 23:45:23,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563638525] [2020-07-19 23:45:23,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-07-19 23:45:23,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:23,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-07-19 23:45:23,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=1627, Unknown=0, NotChecked=0, Total=2862 [2020-07-19 23:45:23,037 INFO L87 Difference]: Start difference. First operand 342 states and 342 transitions. Second operand 54 states. [2020-07-19 23:45:23,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:23,792 INFO L93 Difference]: Finished difference Result 352 states and 352 transitions. [2020-07-19 23:45:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-07-19 23:45:23,792 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 339 [2020-07-19 23:45:23,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:23,795 INFO L225 Difference]: With dead ends: 352 [2020-07-19 23:45:23,795 INFO L226 Difference]: Without dead ends: 350 [2020-07-19 23:45:23,796 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 [2020-07-19 23:45:23,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-07-19 23:45:23,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2020-07-19 23:45:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-19 23:45:23,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 349 transitions. [2020-07-19 23:45:23,806 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 349 transitions. Word has length 339 [2020-07-19 23:45:23,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:23,806 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 349 transitions. [2020-07-19 23:45:23,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-07-19 23:45:23,807 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 349 transitions. [2020-07-19 23:45:23,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-07-19 23:45:23,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:23,809 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:24,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:24,023 INFO L427 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:24,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:24,023 INFO L82 PathProgramCache]: Analyzing trace with hash 2030437813, now seen corresponding path program 48 times [2020-07-19 23:45:24,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:24,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475283166] [2020-07-19 23:45:24,024 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 96 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-07-19 23:45:25,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475283166] [2020-07-19 23:45:25,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482033701] [2020-07-19 23:45:25,567 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@620a6d79 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 [2020-07-19 23:45:25,658 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@620a6d79 issued 4 check-sat command(s) [2020-07-19 23:45:25,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:25,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 52 conjunts are in the unsatisfiable core [2020-07-19 23:45:25,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:25,686 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 8088 backedges. 96 proven. 3480 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-07-19 23:45:25,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:25,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 55 [2020-07-19 23:45:25,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789287987] [2020-07-19 23:45:25,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-07-19 23:45:25,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:25,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-07-19 23:45:25,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1285, Invalid=1685, Unknown=0, NotChecked=0, Total=2970 [2020-07-19 23:45:25,856 INFO L87 Difference]: Start difference. First operand 349 states and 349 transitions. Second operand 55 states. [2020-07-19 23:45:26,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:26,583 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2020-07-19 23:45:26,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-07-19 23:45:26,584 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 346 [2020-07-19 23:45:26,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:26,587 INFO L225 Difference]: With dead ends: 359 [2020-07-19 23:45:26,587 INFO L226 Difference]: Without dead ends: 357 [2020-07-19 23:45:26,588 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 [2020-07-19 23:45:26,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-07-19 23:45:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2020-07-19 23:45:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-07-19 23:45:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2020-07-19 23:45:26,597 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 346 [2020-07-19 23:45:26,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:26,597 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2020-07-19 23:45:26,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-07-19 23:45:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2020-07-19 23:45:26,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-07-19 23:45:26,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:26,600 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:26,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2020-07-19 23:45:26,814 INFO L427 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:26,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:26,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1376696312, now seen corresponding path program 49 times [2020-07-19 23:45:26,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:26,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23849776] [2020-07-19 23:45:26,815 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 98 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2020-07-19 23:45:28,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23849776] [2020-07-19 23:45:28,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117311480] [2020-07-19 23:45:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72984c02 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:28,547 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@72984c02 issued 4 check-sat command(s) [2020-07-19 23:45:28,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:28,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-19 23:45:28,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:28,576 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:28,692 INFO L134 CoverageAnalysis]: Checked inductivity of 8428 backedges. 98 proven. 3626 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2020-07-19 23:45:28,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:28,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 56 [2020-07-19 23:45:28,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327611484] [2020-07-19 23:45:28,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 56 states [2020-07-19 23:45:28,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:28,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2020-07-19 23:45:28,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1336, Invalid=1744, Unknown=0, NotChecked=0, Total=3080 [2020-07-19 23:45:28,694 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand 56 states. [2020-07-19 23:45:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:29,424 INFO L93 Difference]: Finished difference Result 366 states and 366 transitions. [2020-07-19 23:45:29,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-07-19 23:45:29,425 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 353 [2020-07-19 23:45:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:29,427 INFO L225 Difference]: With dead ends: 366 [2020-07-19 23:45:29,427 INFO L226 Difference]: Without dead ends: 364 [2020-07-19 23:45:29,429 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 [2020-07-19 23:45:29,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-07-19 23:45:29,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 363. [2020-07-19 23:45:29,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-07-19 23:45:29,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 363 transitions. [2020-07-19 23:45:29,438 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 363 transitions. Word has length 353 [2020-07-19 23:45:29,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:29,439 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 363 transitions. [2020-07-19 23:45:29,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 56 states. [2020-07-19 23:45:29,439 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 363 transitions. [2020-07-19 23:45:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-07-19 23:45:29,441 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:29,441 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:29,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2020-07-19 23:45:29,656 INFO L427 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:29,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:29,657 INFO L82 PathProgramCache]: Analyzing trace with hash -432450987, now seen corresponding path program 50 times [2020-07-19 23:45:29,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:29,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602545581] [2020-07-19 23:45:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 100 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2020-07-19 23:45:31,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602545581] [2020-07-19 23:45:31,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464319209] [2020-07-19 23:45:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17457d99 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 [2020-07-19 23:45:31,432 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17457d99 issued 4 check-sat command(s) [2020-07-19 23:45:31,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:31,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 54 conjunts are in the unsatisfiable core [2020-07-19 23:45:31,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:31,459 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:31,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8775 backedges. 100 proven. 3775 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2020-07-19 23:45:31,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:31,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 57 [2020-07-19 23:45:31,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348908596] [2020-07-19 23:45:31,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-07-19 23:45:31,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:31,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-07-19 23:45:31,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1388, Invalid=1804, Unknown=0, NotChecked=0, Total=3192 [2020-07-19 23:45:31,633 INFO L87 Difference]: Start difference. First operand 363 states and 363 transitions. Second operand 57 states. [2020-07-19 23:45:32,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:32,495 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2020-07-19 23:45:32,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-07-19 23:45:32,496 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 360 [2020-07-19 23:45:32,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:32,498 INFO L225 Difference]: With dead ends: 373 [2020-07-19 23:45:32,498 INFO L226 Difference]: Without dead ends: 371 [2020-07-19 23:45:32,498 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 [2020-07-19 23:45:32,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-19 23:45:32,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 370. [2020-07-19 23:45:32,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-07-19 23:45:32,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 370 transitions. [2020-07-19 23:45:32,506 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 370 transitions. Word has length 360 [2020-07-19 23:45:32,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:32,507 INFO L479 AbstractCegarLoop]: Abstraction has 370 states and 370 transitions. [2020-07-19 23:45:32,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-07-19 23:45:32,507 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 370 transitions. [2020-07-19 23:45:32,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2020-07-19 23:45:32,509 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:32,510 INFO L422 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:32,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:32,725 INFO L427 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:32,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:32,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1466730344, now seen corresponding path program 51 times [2020-07-19 23:45:32,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:32,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038694307] [2020-07-19 23:45:32,726 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 102 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2020-07-19 23:45:34,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038694307] [2020-07-19 23:45:34,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160431883] [2020-07-19 23:45:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65e15b2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:34,612 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@65e15b2 issued 4 check-sat command(s) [2020-07-19 23:45:34,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:34,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 55 conjunts are in the unsatisfiable core [2020-07-19 23:45:34,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:34,635 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 9129 backedges. 102 proven. 3927 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2020-07-19 23:45:34,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:34,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 58 [2020-07-19 23:45:34,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965957756] [2020-07-19 23:45:34,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 58 states [2020-07-19 23:45:34,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:34,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2020-07-19 23:45:34,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1441, Invalid=1865, Unknown=0, NotChecked=0, Total=3306 [2020-07-19 23:45:34,830 INFO L87 Difference]: Start difference. First operand 370 states and 370 transitions. Second operand 58 states. [2020-07-19 23:45:35,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:35,671 INFO L93 Difference]: Finished difference Result 380 states and 380 transitions. [2020-07-19 23:45:35,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-07-19 23:45:35,671 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 367 [2020-07-19 23:45:35,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:35,673 INFO L225 Difference]: With dead ends: 380 [2020-07-19 23:45:35,673 INFO L226 Difference]: Without dead ends: 378 [2020-07-19 23:45:35,674 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 [2020-07-19 23:45:35,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-07-19 23:45:35,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2020-07-19 23:45:35,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-07-19 23:45:35,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 377 transitions. [2020-07-19 23:45:35,682 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 377 transitions. Word has length 367 [2020-07-19 23:45:35,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:35,682 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 377 transitions. [2020-07-19 23:45:35,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 58 states. [2020-07-19 23:45:35,683 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 377 transitions. [2020-07-19 23:45:35,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-07-19 23:45:35,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:35,685 INFO L422 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:35,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2020-07-19 23:45:35,899 INFO L427 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:35,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:35,899 INFO L82 PathProgramCache]: Analyzing trace with hash 182060789, now seen corresponding path program 52 times [2020-07-19 23:45:35,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:35,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186159028] [2020-07-19 23:45:35,900 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:37,731 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 104 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2020-07-19 23:45:37,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186159028] [2020-07-19 23:45:37,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115730650] [2020-07-19 23:45:37,731 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d7a015 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 [2020-07-19 23:45:37,830 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3d7a015 issued 4 check-sat command(s) [2020-07-19 23:45:37,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:37,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 56 conjunts are in the unsatisfiable core [2020-07-19 23:45:37,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:37,856 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:37,994 INFO L134 CoverageAnalysis]: Checked inductivity of 9490 backedges. 104 proven. 4082 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2020-07-19 23:45:37,994 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:37,994 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 59 [2020-07-19 23:45:37,995 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889488835] [2020-07-19 23:45:37,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 59 states [2020-07-19 23:45:37,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:37,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2020-07-19 23:45:37,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1495, Invalid=1927, Unknown=0, NotChecked=0, Total=3422 [2020-07-19 23:45:37,996 INFO L87 Difference]: Start difference. First operand 377 states and 377 transitions. Second operand 59 states. [2020-07-19 23:45:38,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:38,885 INFO L93 Difference]: Finished difference Result 387 states and 387 transitions. [2020-07-19 23:45:38,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-07-19 23:45:38,885 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 374 [2020-07-19 23:45:38,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:38,887 INFO L225 Difference]: With dead ends: 387 [2020-07-19 23:45:38,887 INFO L226 Difference]: Without dead ends: 385 [2020-07-19 23:45:38,888 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 [2020-07-19 23:45:38,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-07-19 23:45:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2020-07-19 23:45:38,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2020-07-19 23:45:38,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 384 transitions. [2020-07-19 23:45:38,895 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 384 transitions. Word has length 374 [2020-07-19 23:45:38,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:38,896 INFO L479 AbstractCegarLoop]: Abstraction has 384 states and 384 transitions. [2020-07-19 23:45:38,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 59 states. [2020-07-19 23:45:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 384 transitions. [2020-07-19 23:45:38,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-07-19 23:45:38,899 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:38,899 INFO L422 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:39,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:39,105 INFO L427 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:39,106 INFO L82 PathProgramCache]: Analyzing trace with hash -15376696, now seen corresponding path program 53 times [2020-07-19 23:45:39,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:39,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11252264] [2020-07-19 23:45:39,106 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 106 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2020-07-19 23:45:41,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11252264] [2020-07-19 23:45:41,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438258927] [2020-07-19 23:45:41,092 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a9e1910 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:41,193 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4a9e1910 issued 4 check-sat command(s) [2020-07-19 23:45:41,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:41,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 57 conjunts are in the unsatisfiable core [2020-07-19 23:45:41,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:41,218 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:41,351 INFO L134 CoverageAnalysis]: Checked inductivity of 9858 backedges. 106 proven. 4240 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2020-07-19 23:45:41,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:41,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 60 [2020-07-19 23:45:41,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591781064] [2020-07-19 23:45:41,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 60 states [2020-07-19 23:45:41,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:41,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2020-07-19 23:45:41,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1550, Invalid=1990, Unknown=0, NotChecked=0, Total=3540 [2020-07-19 23:45:41,354 INFO L87 Difference]: Start difference. First operand 384 states and 384 transitions. Second operand 60 states. [2020-07-19 23:45:42,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:42,257 INFO L93 Difference]: Finished difference Result 394 states and 394 transitions. [2020-07-19 23:45:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-07-19 23:45:42,259 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 381 [2020-07-19 23:45:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:42,261 INFO L225 Difference]: With dead ends: 394 [2020-07-19 23:45:42,261 INFO L226 Difference]: Without dead ends: 392 [2020-07-19 23:45:42,261 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 [2020-07-19 23:45:42,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-07-19 23:45:42,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2020-07-19 23:45:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-19 23:45:42,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 391 transitions. [2020-07-19 23:45:42,269 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 391 transitions. Word has length 381 [2020-07-19 23:45:42,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:42,270 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 391 transitions. [2020-07-19 23:45:42,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 60 states. [2020-07-19 23:45:42,270 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 391 transitions. [2020-07-19 23:45:42,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-07-19 23:45:42,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:42,272 INFO L422 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:42,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2020-07-19 23:45:42,486 INFO L427 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:42,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:42,486 INFO L82 PathProgramCache]: Analyzing trace with hash 122823573, now seen corresponding path program 54 times [2020-07-19 23:45:42,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:42,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670422769] [2020-07-19 23:45:42,487 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 108 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2020-07-19 23:45:44,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670422769] [2020-07-19 23:45:44,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822137695] [2020-07-19 23:45:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7533b831 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 [2020-07-19 23:45:44,582 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7533b831 issued 4 check-sat command(s) [2020-07-19 23:45:44,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:44,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 58 conjunts are in the unsatisfiable core [2020-07-19 23:45:44,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:44,608 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:44,882 INFO L134 CoverageAnalysis]: Checked inductivity of 10233 backedges. 108 proven. 4401 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2020-07-19 23:45:44,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:44,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 61 [2020-07-19 23:45:44,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431055708] [2020-07-19 23:45:44,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 61 states [2020-07-19 23:45:44,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:44,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2020-07-19 23:45:44,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=2054, Unknown=0, NotChecked=0, Total=3660 [2020-07-19 23:45:44,887 INFO L87 Difference]: Start difference. First operand 391 states and 391 transitions. Second operand 61 states. [2020-07-19 23:45:45,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:45,747 INFO L93 Difference]: Finished difference Result 401 states and 401 transitions. [2020-07-19 23:45:45,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-07-19 23:45:45,748 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 388 [2020-07-19 23:45:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:45,751 INFO L225 Difference]: With dead ends: 401 [2020-07-19 23:45:45,751 INFO L226 Difference]: Without dead ends: 399 [2020-07-19 23:45:45,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1612, Invalid=2170, Unknown=0, NotChecked=0, Total=3782 [2020-07-19 23:45:45,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-07-19 23:45:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 398. [2020-07-19 23:45:45,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-19 23:45:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 398 transitions. [2020-07-19 23:45:45,759 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 398 transitions. Word has length 388 [2020-07-19 23:45:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:45,759 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 398 transitions. [2020-07-19 23:45:45,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 61 states. [2020-07-19 23:45:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 398 transitions. [2020-07-19 23:45:45,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-07-19 23:45:45,762 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:45,762 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:45,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2020-07-19 23:45:45,974 INFO L427 AbstractCegarLoop]: === Iteration 56 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:45,975 INFO L82 PathProgramCache]: Analyzing trace with hash 423743016, now seen corresponding path program 55 times [2020-07-19 23:45:45,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:45,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28464270] [2020-07-19 23:45:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 110 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2020-07-19 23:45:48,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28464270] [2020-07-19 23:45:48,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862325234] [2020-07-19 23:45:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1e799c7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:48,129 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1e799c7 issued 4 check-sat command(s) [2020-07-19 23:45:48,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:48,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-19 23:45:48,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:48,152 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 10615 backedges. 110 proven. 4565 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2020-07-19 23:45:48,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:48,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 62 [2020-07-19 23:45:48,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862200422] [2020-07-19 23:45:48,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 62 states [2020-07-19 23:45:48,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:48,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2020-07-19 23:45:48,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1663, Invalid=2119, Unknown=0, NotChecked=0, Total=3782 [2020-07-19 23:45:48,310 INFO L87 Difference]: Start difference. First operand 398 states and 398 transitions. Second operand 62 states. [2020-07-19 23:45:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:49,163 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2020-07-19 23:45:49,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-07-19 23:45:49,164 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 395 [2020-07-19 23:45:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:49,166 INFO L225 Difference]: With dead ends: 408 [2020-07-19 23:45:49,166 INFO L226 Difference]: Without dead ends: 406 [2020-07-19 23:45:49,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1669, Invalid=2237, Unknown=0, NotChecked=0, Total=3906 [2020-07-19 23:45:49,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-07-19 23:45:49,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2020-07-19 23:45:49,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-19 23:45:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 405 transitions. [2020-07-19 23:45:49,174 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 405 transitions. Word has length 395 [2020-07-19 23:45:49,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:49,174 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 405 transitions. [2020-07-19 23:45:49,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 62 states. [2020-07-19 23:45:49,174 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 405 transitions. [2020-07-19 23:45:49,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-07-19 23:45:49,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:49,177 INFO L422 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:49,390 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:49,391 INFO L427 AbstractCegarLoop]: === Iteration 57 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:49,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:49,392 INFO L82 PathProgramCache]: Analyzing trace with hash -91510731, now seen corresponding path program 56 times [2020-07-19 23:45:49,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:49,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293014697] [2020-07-19 23:45:49,393 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 112 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2020-07-19 23:45:52,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293014697] [2020-07-19 23:45:52,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94541643] [2020-07-19 23:45:52,647 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33f19af2 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 [2020-07-19 23:45:52,822 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@33f19af2 issued 4 check-sat command(s) [2020-07-19 23:45:52,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:52,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 60 conjunts are in the unsatisfiable core [2020-07-19 23:45:52,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:52,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:53,228 INFO L134 CoverageAnalysis]: Checked inductivity of 11004 backedges. 112 proven. 4732 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2020-07-19 23:45:53,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:53,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 63 [2020-07-19 23:45:53,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296221528] [2020-07-19 23:45:53,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-07-19 23:45:53,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:53,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-07-19 23:45:53,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1721, Invalid=2185, Unknown=0, NotChecked=0, Total=3906 [2020-07-19 23:45:53,233 INFO L87 Difference]: Start difference. First operand 405 states and 405 transitions. Second operand 63 states. [2020-07-19 23:45:54,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:54,399 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2020-07-19 23:45:54,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2020-07-19 23:45:54,399 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 402 [2020-07-19 23:45:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:54,402 INFO L225 Difference]: With dead ends: 415 [2020-07-19 23:45:54,402 INFO L226 Difference]: Without dead ends: 413 [2020-07-19 23:45:54,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1727, Invalid=2305, Unknown=0, NotChecked=0, Total=4032 [2020-07-19 23:45:54,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-19 23:45:54,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 412. [2020-07-19 23:45:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-19 23:45:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 412 transitions. [2020-07-19 23:45:54,408 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 412 transitions. Word has length 402 [2020-07-19 23:45:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:54,409 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 412 transitions. [2020-07-19 23:45:54,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-07-19 23:45:54,409 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 412 transitions. [2020-07-19 23:45:54,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-07-19 23:45:54,412 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:54,412 INFO L422 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:54,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2020-07-19 23:45:54,628 INFO L427 AbstractCegarLoop]: === Iteration 58 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:54,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:54,628 INFO L82 PathProgramCache]: Analyzing trace with hash -876096120, now seen corresponding path program 57 times [2020-07-19 23:45:54,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:54,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443109566] [2020-07-19 23:45:54,629 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:45:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 114 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2020-07-19 23:45:56,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443109566] [2020-07-19 23:45:56,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458566377] [2020-07-19 23:45:56,909 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3237876e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:57,020 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3237876e issued 4 check-sat command(s) [2020-07-19 23:45:57,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:45:57,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 61 conjunts are in the unsatisfiable core [2020-07-19 23:45:57,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:45:57,043 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:45:57,193 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 114 proven. 4902 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2020-07-19 23:45:57,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:45:57,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 64 [2020-07-19 23:45:57,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595643056] [2020-07-19 23:45:57,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 64 states [2020-07-19 23:45:57,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:45:57,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2020-07-19 23:45:57,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1780, Invalid=2252, Unknown=0, NotChecked=0, Total=4032 [2020-07-19 23:45:57,195 INFO L87 Difference]: Start difference. First operand 412 states and 412 transitions. Second operand 64 states. [2020-07-19 23:45:58,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:45:58,210 INFO L93 Difference]: Finished difference Result 422 states and 422 transitions. [2020-07-19 23:45:58,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-07-19 23:45:58,210 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 409 [2020-07-19 23:45:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:45:58,212 INFO L225 Difference]: With dead ends: 422 [2020-07-19 23:45:58,213 INFO L226 Difference]: Without dead ends: 420 [2020-07-19 23:45:58,213 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 [2020-07-19 23:45:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2020-07-19 23:45:58,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 419. [2020-07-19 23:45:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-07-19 23:45:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 419 transitions. [2020-07-19 23:45:58,219 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 419 transitions. Word has length 409 [2020-07-19 23:45:58,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:45:58,220 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 419 transitions. [2020-07-19 23:45:58,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 64 states. [2020-07-19 23:45:58,220 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 419 transitions. [2020-07-19 23:45:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-07-19 23:45:58,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:45:58,223 INFO L422 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:45:58,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:45:58,430 INFO L427 AbstractCegarLoop]: === Iteration 59 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:45:58,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:45:58,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1578068779, now seen corresponding path program 58 times [2020-07-19 23:45:58,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:45:58,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475431339] [2020-07-19 23:45:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:45:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 116 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2020-07-19 23:46:00,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475431339] [2020-07-19 23:46:00,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475154231] [2020-07-19 23:46:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7db964f7 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 [2020-07-19 23:46:00,850 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7db964f7 issued 4 check-sat command(s) [2020-07-19 23:46:00,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:00,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 62 conjunts are in the unsatisfiable core [2020-07-19 23:46:00,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:00,882 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 11803 backedges. 116 proven. 5075 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2020-07-19 23:46:01,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:01,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 65 [2020-07-19 23:46:01,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738866323] [2020-07-19 23:46:01,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2020-07-19 23:46:01,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:01,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2020-07-19 23:46:01,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1840, Invalid=2320, Unknown=0, NotChecked=0, Total=4160 [2020-07-19 23:46:01,247 INFO L87 Difference]: Start difference. First operand 419 states and 419 transitions. Second operand 65 states. [2020-07-19 23:46:02,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:02,304 INFO L93 Difference]: Finished difference Result 429 states and 429 transitions. [2020-07-19 23:46:02,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-07-19 23:46:02,305 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 416 [2020-07-19 23:46:02,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:02,307 INFO L225 Difference]: With dead ends: 429 [2020-07-19 23:46:02,307 INFO L226 Difference]: Without dead ends: 427 [2020-07-19 23:46:02,308 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 [2020-07-19 23:46:02,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-07-19 23:46:02,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2020-07-19 23:46:02,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-07-19 23:46:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2020-07-19 23:46:02,315 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 416 [2020-07-19 23:46:02,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:02,316 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2020-07-19 23:46:02,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 65 states. [2020-07-19 23:46:02,316 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2020-07-19 23:46:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-07-19 23:46:02,319 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:02,319 INFO L422 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:02,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2020-07-19 23:46:02,534 INFO L427 AbstractCegarLoop]: === Iteration 60 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:02,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:02,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1308456168, now seen corresponding path program 59 times [2020-07-19 23:46:02,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:02,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750677351] [2020-07-19 23:46:02,534 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 118 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2020-07-19 23:46:04,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750677351] [2020-07-19 23:46:04,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414060942] [2020-07-19 23:46:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@68fc9804 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:05,015 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@68fc9804 issued 4 check-sat command(s) [2020-07-19 23:46:05,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:05,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 63 conjunts are in the unsatisfiable core [2020-07-19 23:46:05,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:05,042 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:05,205 INFO L134 CoverageAnalysis]: Checked inductivity of 12213 backedges. 118 proven. 5251 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2020-07-19 23:46:05,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:05,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 66 [2020-07-19 23:46:05,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420174108] [2020-07-19 23:46:05,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 66 states [2020-07-19 23:46:05,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:05,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2020-07-19 23:46:05,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1901, Invalid=2389, Unknown=0, NotChecked=0, Total=4290 [2020-07-19 23:46:05,207 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand 66 states. [2020-07-19 23:46:06,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:06,296 INFO L93 Difference]: Finished difference Result 436 states and 436 transitions. [2020-07-19 23:46:06,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-07-19 23:46:06,297 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 423 [2020-07-19 23:46:06,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:06,299 INFO L225 Difference]: With dead ends: 436 [2020-07-19 23:46:06,299 INFO L226 Difference]: Without dead ends: 434 [2020-07-19 23:46:06,300 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 [2020-07-19 23:46:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-07-19 23:46:06,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 433. [2020-07-19 23:46:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-07-19 23:46:06,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 433 transitions. [2020-07-19 23:46:06,308 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 433 transitions. Word has length 423 [2020-07-19 23:46:06,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:06,309 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 433 transitions. [2020-07-19 23:46:06,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 66 states. [2020-07-19 23:46:06,309 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 433 transitions. [2020-07-19 23:46:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2020-07-19 23:46:06,312 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:06,312 INFO L422 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:06,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2020-07-19 23:46:06,513 INFO L427 AbstractCegarLoop]: === Iteration 61 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:06,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:06,514 INFO L82 PathProgramCache]: Analyzing trace with hash -110433931, now seen corresponding path program 60 times [2020-07-19 23:46:06,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:06,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593998912] [2020-07-19 23:46:06,515 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 120 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2020-07-19 23:46:08,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593998912] [2020-07-19 23:46:08,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412114322] [2020-07-19 23:46:08,979 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79491a68 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 [2020-07-19 23:46:09,096 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@79491a68 issued 4 check-sat command(s) [2020-07-19 23:46:09,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:09,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 64 conjunts are in the unsatisfiable core [2020-07-19 23:46:09,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:09,127 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12630 backedges. 120 proven. 5430 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2020-07-19 23:46:09,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:09,302 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 67 [2020-07-19 23:46:09,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202251873] [2020-07-19 23:46:09,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 67 states [2020-07-19 23:46:09,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:09,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2020-07-19 23:46:09,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1963, Invalid=2459, Unknown=0, NotChecked=0, Total=4422 [2020-07-19 23:46:09,303 INFO L87 Difference]: Start difference. First operand 433 states and 433 transitions. Second operand 67 states. [2020-07-19 23:46:10,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:10,317 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2020-07-19 23:46:10,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2020-07-19 23:46:10,317 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 430 [2020-07-19 23:46:10,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:10,319 INFO L225 Difference]: With dead ends: 443 [2020-07-19 23:46:10,320 INFO L226 Difference]: Without dead ends: 441 [2020-07-19 23:46:10,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1969, Invalid=2587, Unknown=0, NotChecked=0, Total=4556 [2020-07-19 23:46:10,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2020-07-19 23:46:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2020-07-19 23:46:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2020-07-19 23:46:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 440 transitions. [2020-07-19 23:46:10,327 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 440 transitions. Word has length 430 [2020-07-19 23:46:10,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:10,328 INFO L479 AbstractCegarLoop]: Abstraction has 440 states and 440 transitions. [2020-07-19 23:46:10,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 67 states. [2020-07-19 23:46:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 440 transitions. [2020-07-19 23:46:10,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2020-07-19 23:46:10,330 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:10,330 INFO L422 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:10,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:10,531 INFO L427 AbstractCegarLoop]: === Iteration 62 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:10,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:10,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1220062280, now seen corresponding path program 61 times [2020-07-19 23:46:10,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:10,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555143584] [2020-07-19 23:46:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 122 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2020-07-19 23:46:13,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555143584] [2020-07-19 23:46:13,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493698022] [2020-07-19 23:46:13,095 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6188c6f3 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:13,208 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6188c6f3 issued 4 check-sat command(s) [2020-07-19 23:46:13,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:13,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 65 conjunts are in the unsatisfiable core [2020-07-19 23:46:13,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:13,234 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 13054 backedges. 122 proven. 5612 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2020-07-19 23:46:13,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:13,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 68 [2020-07-19 23:46:13,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279530096] [2020-07-19 23:46:13,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2020-07-19 23:46:13,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:13,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2020-07-19 23:46:13,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2026, Invalid=2530, Unknown=0, NotChecked=0, Total=4556 [2020-07-19 23:46:13,409 INFO L87 Difference]: Start difference. First operand 440 states and 440 transitions. Second operand 68 states. [2020-07-19 23:46:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:14,439 INFO L93 Difference]: Finished difference Result 450 states and 450 transitions. [2020-07-19 23:46:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2020-07-19 23:46:14,439 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 437 [2020-07-19 23:46:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:14,442 INFO L225 Difference]: With dead ends: 450 [2020-07-19 23:46:14,442 INFO L226 Difference]: Without dead ends: 448 [2020-07-19 23:46:14,442 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 [2020-07-19 23:46:14,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-07-19 23:46:14,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 447. [2020-07-19 23:46:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-07-19 23:46:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 447 transitions. [2020-07-19 23:46:14,452 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 447 transitions. Word has length 437 [2020-07-19 23:46:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:14,452 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 447 transitions. [2020-07-19 23:46:14,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 68 states. [2020-07-19 23:46:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 447 transitions. [2020-07-19 23:46:14,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2020-07-19 23:46:14,455 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:14,456 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:14,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,62 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:14,670 INFO L427 AbstractCegarLoop]: === Iteration 63 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:14,671 INFO L82 PathProgramCache]: Analyzing trace with hash -614160875, now seen corresponding path program 62 times [2020-07-19 23:46:14,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:14,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633460280] [2020-07-19 23:46:14,671 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 124 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2020-07-19 23:46:17,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633460280] [2020-07-19 23:46:17,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989798906] [2020-07-19 23:46:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3378b95 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 [2020-07-19 23:46:17,420 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3378b95 issued 4 check-sat command(s) [2020-07-19 23:46:17,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:17,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 66 conjunts are in the unsatisfiable core [2020-07-19 23:46:17,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:17,441 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 13485 backedges. 124 proven. 5797 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2020-07-19 23:46:17,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:17,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 69 [2020-07-19 23:46:17,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415029478] [2020-07-19 23:46:17,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-07-19 23:46:17,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:17,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-07-19 23:46:17,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2090, Invalid=2602, Unknown=0, NotChecked=0, Total=4692 [2020-07-19 23:46:17,628 INFO L87 Difference]: Start difference. First operand 447 states and 447 transitions. Second operand 69 states. [2020-07-19 23:46:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:18,654 INFO L93 Difference]: Finished difference Result 457 states and 457 transitions. [2020-07-19 23:46:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2020-07-19 23:46:18,654 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 444 [2020-07-19 23:46:18,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:18,657 INFO L225 Difference]: With dead ends: 457 [2020-07-19 23:46:18,657 INFO L226 Difference]: Without dead ends: 455 [2020-07-19 23:46:18,658 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 [2020-07-19 23:46:18,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-07-19 23:46:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 454. [2020-07-19 23:46:18,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2020-07-19 23:46:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 454 transitions. [2020-07-19 23:46:18,666 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 454 transitions. Word has length 444 [2020-07-19 23:46:18,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:18,666 INFO L479 AbstractCegarLoop]: Abstraction has 454 states and 454 transitions. [2020-07-19 23:46:18,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-07-19 23:46:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 454 transitions. [2020-07-19 23:46:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2020-07-19 23:46:18,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:18,669 INFO L422 BasicCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:18,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,63 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:18,869 INFO L427 AbstractCegarLoop]: === Iteration 64 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:18,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:18,870 INFO L82 PathProgramCache]: Analyzing trace with hash 911178664, now seen corresponding path program 63 times [2020-07-19 23:46:18,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:18,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699886597] [2020-07-19 23:46:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 126 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2020-07-19 23:46:21,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699886597] [2020-07-19 23:46:21,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671276666] [2020-07-19 23:46:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@115be365 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:21,732 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@115be365 issued 4 check-sat command(s) [2020-07-19 23:46:21,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:21,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 67 conjunts are in the unsatisfiable core [2020-07-19 23:46:21,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:21,766 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 13923 backedges. 126 proven. 5985 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2020-07-19 23:46:22,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:22,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 70 [2020-07-19 23:46:22,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086774624] [2020-07-19 23:46:22,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 70 states [2020-07-19 23:46:22,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:22,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2020-07-19 23:46:22,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2155, Invalid=2675, Unknown=0, NotChecked=0, Total=4830 [2020-07-19 23:46:22,020 INFO L87 Difference]: Start difference. First operand 454 states and 454 transitions. Second operand 70 states. [2020-07-19 23:46:23,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:23,074 INFO L93 Difference]: Finished difference Result 464 states and 464 transitions. [2020-07-19 23:46:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2020-07-19 23:46:23,075 INFO L78 Accepts]: Start accepts. Automaton has 70 states. Word has length 451 [2020-07-19 23:46:23,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:23,078 INFO L225 Difference]: With dead ends: 464 [2020-07-19 23:46:23,078 INFO L226 Difference]: Without dead ends: 462 [2020-07-19 23:46:23,079 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 [2020-07-19 23:46:23,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2020-07-19 23:46:23,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2020-07-19 23:46:23,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-07-19 23:46:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 461 transitions. [2020-07-19 23:46:23,089 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 461 transitions. Word has length 451 [2020-07-19 23:46:23,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:23,089 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 461 transitions. [2020-07-19 23:46:23,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 70 states. [2020-07-19 23:46:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 461 transitions. [2020-07-19 23:46:23,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-07-19 23:46:23,093 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:23,093 INFO L422 BasicCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:23,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:23,308 INFO L427 AbstractCegarLoop]: === Iteration 65 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:23,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:23,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1597519179, now seen corresponding path program 64 times [2020-07-19 23:46:23,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:23,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738497649] [2020-07-19 23:46:23,310 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 128 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2020-07-19 23:46:26,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738497649] [2020-07-19 23:46:26,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974277695] [2020-07-19 23:46:26,230 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2085c599 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 [2020-07-19 23:46:26,348 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2085c599 issued 4 check-sat command(s) [2020-07-19 23:46:26,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:26,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-19 23:46:26,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:26,382 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 14368 backedges. 128 proven. 6176 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2020-07-19 23:46:26,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:26,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 71 [2020-07-19 23:46:26,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294423290] [2020-07-19 23:46:26,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 71 states [2020-07-19 23:46:26,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:26,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2020-07-19 23:46:26,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2221, Invalid=2749, Unknown=0, NotChecked=0, Total=4970 [2020-07-19 23:46:26,677 INFO L87 Difference]: Start difference. First operand 461 states and 461 transitions. Second operand 71 states. [2020-07-19 23:46:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:27,832 INFO L93 Difference]: Finished difference Result 471 states and 471 transitions. [2020-07-19 23:46:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2020-07-19 23:46:27,833 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 458 [2020-07-19 23:46:27,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:27,835 INFO L225 Difference]: With dead ends: 471 [2020-07-19 23:46:27,835 INFO L226 Difference]: Without dead ends: 469 [2020-07-19 23:46:27,836 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 [2020-07-19 23:46:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-07-19 23:46:27,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 468. [2020-07-19 23:46:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-07-19 23:46:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 468 transitions. [2020-07-19 23:46:27,843 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 468 transitions. Word has length 458 [2020-07-19 23:46:27,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:27,844 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 468 transitions. [2020-07-19 23:46:27,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 71 states. [2020-07-19 23:46:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 468 transitions. [2020-07-19 23:46:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2020-07-19 23:46:27,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:27,848 INFO L422 BasicCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:28,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,65 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:28,052 INFO L427 AbstractCegarLoop]: === Iteration 66 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:28,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:28,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1030233336, now seen corresponding path program 65 times [2020-07-19 23:46:28,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:28,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451805572] [2020-07-19 23:46:28,054 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 130 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2020-07-19 23:46:31,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451805572] [2020-07-19 23:46:31,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212283701] [2020-07-19 23:46:31,026 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@52f808e7 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:31,149 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@52f808e7 issued 4 check-sat command(s) [2020-07-19 23:46:31,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:31,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 69 conjunts are in the unsatisfiable core [2020-07-19 23:46:31,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:31,179 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:31,364 INFO L134 CoverageAnalysis]: Checked inductivity of 14820 backedges. 130 proven. 6370 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2020-07-19 23:46:31,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:31,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 72 [2020-07-19 23:46:31,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413669536] [2020-07-19 23:46:31,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 72 states [2020-07-19 23:46:31,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:31,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2020-07-19 23:46:31,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2288, Invalid=2824, Unknown=0, NotChecked=0, Total=5112 [2020-07-19 23:46:31,366 INFO L87 Difference]: Start difference. First operand 468 states and 468 transitions. Second operand 72 states. [2020-07-19 23:46:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:32,613 INFO L93 Difference]: Finished difference Result 478 states and 478 transitions. [2020-07-19 23:46:32,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2020-07-19 23:46:32,614 INFO L78 Accepts]: Start accepts. Automaton has 72 states. Word has length 465 [2020-07-19 23:46:32,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:32,616 INFO L225 Difference]: With dead ends: 478 [2020-07-19 23:46:32,616 INFO L226 Difference]: Without dead ends: 476 [2020-07-19 23:46:32,617 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 [2020-07-19 23:46:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-07-19 23:46:32,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 475. [2020-07-19 23:46:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-07-19 23:46:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 475 transitions. [2020-07-19 23:46:32,626 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 475 transitions. Word has length 465 [2020-07-19 23:46:32,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:32,627 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 475 transitions. [2020-07-19 23:46:32,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 72 states. [2020-07-19 23:46:32,627 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 475 transitions. [2020-07-19 23:46:32,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-07-19 23:46:32,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:32,630 INFO L422 BasicCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:32,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2020-07-19 23:46:32,846 INFO L427 AbstractCegarLoop]: === Iteration 67 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:32,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:32,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1057073323, now seen corresponding path program 66 times [2020-07-19 23:46:32,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:32,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452159037] [2020-07-19 23:46:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:35,886 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 132 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2020-07-19 23:46:35,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452159037] [2020-07-19 23:46:35,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154792797] [2020-07-19 23:46:35,887 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@654e303e 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 [2020-07-19 23:46:36,005 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@654e303e issued 4 check-sat command(s) [2020-07-19 23:46:36,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:36,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 70 conjunts are in the unsatisfiable core [2020-07-19 23:46:36,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:36,039 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 15279 backedges. 132 proven. 6567 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2020-07-19 23:46:36,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:36,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 73 [2020-07-19 23:46:36,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525789795] [2020-07-19 23:46:36,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-07-19 23:46:36,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:36,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-07-19 23:46:36,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2356, Invalid=2900, Unknown=0, NotChecked=0, Total=5256 [2020-07-19 23:46:36,280 INFO L87 Difference]: Start difference. First operand 475 states and 475 transitions. Second operand 73 states. [2020-07-19 23:46:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:37,481 INFO L93 Difference]: Finished difference Result 485 states and 485 transitions. [2020-07-19 23:46:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2020-07-19 23:46:37,482 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 472 [2020-07-19 23:46:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:37,484 INFO L225 Difference]: With dead ends: 485 [2020-07-19 23:46:37,484 INFO L226 Difference]: Without dead ends: 483 [2020-07-19 23:46:37,485 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 [2020-07-19 23:46:37,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-07-19 23:46:37,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 482. [2020-07-19 23:46:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-07-19 23:46:37,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 482 transitions. [2020-07-19 23:46:37,493 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 482 transitions. Word has length 472 [2020-07-19 23:46:37,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:37,493 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 482 transitions. [2020-07-19 23:46:37,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-07-19 23:46:37,493 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 482 transitions. [2020-07-19 23:46:37,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-07-19 23:46:37,497 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:37,497 INFO L422 BasicCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:37,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2020-07-19 23:46:37,711 INFO L427 AbstractCegarLoop]: === Iteration 68 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:37,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:37,712 INFO L82 PathProgramCache]: Analyzing trace with hash 719839848, now seen corresponding path program 67 times [2020-07-19 23:46:37,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:37,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377034244] [2020-07-19 23:46:37,713 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 134 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2020-07-19 23:46:40,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377034244] [2020-07-19 23:46:40,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512875079] [2020-07-19 23:46:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@648cb989 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:40,999 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@648cb989 issued 4 check-sat command(s) [2020-07-19 23:46:40,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:41,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 71 conjunts are in the unsatisfiable core [2020-07-19 23:46:41,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:41,042 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:41,273 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 134 proven. 6767 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2020-07-19 23:46:41,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:41,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 74 [2020-07-19 23:46:41,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720117451] [2020-07-19 23:46:41,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 74 states [2020-07-19 23:46:41,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:41,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2020-07-19 23:46:41,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2425, Invalid=2977, Unknown=0, NotChecked=0, Total=5402 [2020-07-19 23:46:41,275 INFO L87 Difference]: Start difference. First operand 482 states and 482 transitions. Second operand 74 states. [2020-07-19 23:46:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:42,425 INFO L93 Difference]: Finished difference Result 492 states and 492 transitions. [2020-07-19 23:46:42,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2020-07-19 23:46:42,426 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 479 [2020-07-19 23:46:42,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:42,429 INFO L225 Difference]: With dead ends: 492 [2020-07-19 23:46:42,429 INFO L226 Difference]: Without dead ends: 490 [2020-07-19 23:46:42,430 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 [2020-07-19 23:46:42,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-07-19 23:46:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 489. [2020-07-19 23:46:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-07-19 23:46:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 489 transitions. [2020-07-19 23:46:42,439 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 489 transitions. Word has length 479 [2020-07-19 23:46:42,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:42,440 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 489 transitions. [2020-07-19 23:46:42,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 74 states. [2020-07-19 23:46:42,440 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 489 transitions. [2020-07-19 23:46:42,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-07-19 23:46:42,443 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:42,444 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:42,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:42,646 INFO L427 AbstractCegarLoop]: === Iteration 69 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:42,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:42,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1911704565, now seen corresponding path program 68 times [2020-07-19 23:46:42,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:42,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060424881] [2020-07-19 23:46:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:45,915 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 136 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2020-07-19 23:46:45,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060424881] [2020-07-19 23:46:45,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996907911] [2020-07-19 23:46:45,916 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@54a17f7b 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 [2020-07-19 23:46:46,038 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@54a17f7b issued 4 check-sat command(s) [2020-07-19 23:46:46,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:46,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 72 conjunts are in the unsatisfiable core [2020-07-19 23:46:46,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:46,085 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:46,277 INFO L134 CoverageAnalysis]: Checked inductivity of 16218 backedges. 136 proven. 6970 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2020-07-19 23:46:46,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:46,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 75 [2020-07-19 23:46:46,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615420012] [2020-07-19 23:46:46,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 75 states [2020-07-19 23:46:46,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:46,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2020-07-19 23:46:46,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2495, Invalid=3055, Unknown=0, NotChecked=0, Total=5550 [2020-07-19 23:46:46,279 INFO L87 Difference]: Start difference. First operand 489 states and 489 transitions. Second operand 75 states. [2020-07-19 23:46:47,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:47,424 INFO L93 Difference]: Finished difference Result 499 states and 499 transitions. [2020-07-19 23:46:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-19 23:46:47,425 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 486 [2020-07-19 23:46:47,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:47,428 INFO L225 Difference]: With dead ends: 499 [2020-07-19 23:46:47,428 INFO L226 Difference]: Without dead ends: 497 [2020-07-19 23:46:47,429 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 [2020-07-19 23:46:47,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-07-19 23:46:47,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 496. [2020-07-19 23:46:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-07-19 23:46:47,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 496 transitions. [2020-07-19 23:46:47,436 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 496 transitions. Word has length 486 [2020-07-19 23:46:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:47,437 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 496 transitions. [2020-07-19 23:46:47,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 75 states. [2020-07-19 23:46:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 496 transitions. [2020-07-19 23:46:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2020-07-19 23:46:47,439 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:47,439 INFO L422 BasicCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:47,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2020-07-19 23:46:47,640 INFO L427 AbstractCegarLoop]: === Iteration 70 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:47,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:47,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1642759736, now seen corresponding path program 69 times [2020-07-19 23:46:47,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:47,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197386023] [2020-07-19 23:46:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 138 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2020-07-19 23:46:50,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197386023] [2020-07-19 23:46:50,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893519006] [2020-07-19 23:46:50,961 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d681423 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:46:51,091 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d681423 issued 4 check-sat command(s) [2020-07-19 23:46:51,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:51,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 73 conjunts are in the unsatisfiable core [2020-07-19 23:46:51,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:51,118 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:51,317 INFO L134 CoverageAnalysis]: Checked inductivity of 16698 backedges. 138 proven. 7176 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2020-07-19 23:46:51,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:51,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 76 [2020-07-19 23:46:51,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586584114] [2020-07-19 23:46:51,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 76 states [2020-07-19 23:46:51,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:51,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2020-07-19 23:46:51,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2566, Invalid=3134, Unknown=0, NotChecked=0, Total=5700 [2020-07-19 23:46:51,319 INFO L87 Difference]: Start difference. First operand 496 states and 496 transitions. Second operand 76 states. [2020-07-19 23:46:52,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:52,460 INFO L93 Difference]: Finished difference Result 506 states and 506 transitions. [2020-07-19 23:46:52,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2020-07-19 23:46:52,461 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 493 [2020-07-19 23:46:52,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:52,465 INFO L225 Difference]: With dead ends: 506 [2020-07-19 23:46:52,465 INFO L226 Difference]: Without dead ends: 504 [2020-07-19 23:46:52,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 707 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2572, Invalid=3280, Unknown=0, NotChecked=0, Total=5852 [2020-07-19 23:46:52,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-07-19 23:46:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2020-07-19 23:46:52,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2020-07-19 23:46:52,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 503 transitions. [2020-07-19 23:46:52,476 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 503 transitions. Word has length 493 [2020-07-19 23:46:52,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:52,477 INFO L479 AbstractCegarLoop]: Abstraction has 503 states and 503 transitions. [2020-07-19 23:46:52,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 76 states. [2020-07-19 23:46:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 503 transitions. [2020-07-19 23:46:52,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2020-07-19 23:46:52,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:52,481 INFO L422 BasicCegarLoop]: trace histogram [71, 71, 71, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:52,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2020-07-19 23:46:52,695 INFO L427 AbstractCegarLoop]: === Iteration 71 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:52,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:52,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1208854677, now seen corresponding path program 70 times [2020-07-19 23:46:52,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:52,696 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221701337] [2020-07-19 23:46:52,696 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:46:56,176 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 140 proven. 7385 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2020-07-19 23:46:56,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221701337] [2020-07-19 23:46:56,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409307508] [2020-07-19 23:46:56,177 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@42183cbd 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 [2020-07-19 23:46:56,307 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@42183cbd issued 4 check-sat command(s) [2020-07-19 23:46:56,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:46:56,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 74 conjunts are in the unsatisfiable core [2020-07-19 23:46:56,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:46:56,332 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:46:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 17185 backedges. 140 proven. 7385 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2020-07-19 23:46:56,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:46:56,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 77 [2020-07-19 23:46:56,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71763362] [2020-07-19 23:46:56,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 77 states [2020-07-19 23:46:56,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:46:56,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2020-07-19 23:46:56,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2638, Invalid=3214, Unknown=0, NotChecked=0, Total=5852 [2020-07-19 23:46:56,535 INFO L87 Difference]: Start difference. First operand 503 states and 503 transitions. Second operand 77 states. [2020-07-19 23:46:57,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:46:57,760 INFO L93 Difference]: Finished difference Result 513 states and 513 transitions. [2020-07-19 23:46:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2020-07-19 23:46:57,761 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 500 [2020-07-19 23:46:57,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:46:57,763 INFO L225 Difference]: With dead ends: 513 [2020-07-19 23:46:57,763 INFO L226 Difference]: Without dead ends: 511 [2020-07-19 23:46:57,764 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 [2020-07-19 23:46:57,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-07-19 23:46:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 510. [2020-07-19 23:46:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2020-07-19 23:46:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 510 transitions. [2020-07-19 23:46:57,771 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 510 transitions. Word has length 500 [2020-07-19 23:46:57,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:46:57,772 INFO L479 AbstractCegarLoop]: Abstraction has 510 states and 510 transitions. [2020-07-19 23:46:57,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 77 states. [2020-07-19 23:46:57,772 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 510 transitions. [2020-07-19 23:46:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2020-07-19 23:46:57,775 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:46:57,775 INFO L422 BasicCegarLoop]: trace histogram [72, 72, 72, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:46:57,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable70 [2020-07-19 23:46:57,989 INFO L427 AbstractCegarLoop]: === Iteration 72 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:46:57,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:46:57,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1669945048, now seen corresponding path program 71 times [2020-07-19 23:46:57,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:46:57,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082693838] [2020-07-19 23:46:57,991 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:46:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:01,546 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 142 proven. 7597 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2020-07-19 23:47:01,546 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082693838] [2020-07-19 23:47:01,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672461717] [2020-07-19 23:47:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@63a7afbb No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:01,681 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@63a7afbb issued 4 check-sat command(s) [2020-07-19 23:47:01,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:01,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 75 conjunts are in the unsatisfiable core [2020-07-19 23:47:01,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:01,708 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:01,941 INFO L134 CoverageAnalysis]: Checked inductivity of 17679 backedges. 142 proven. 7597 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2020-07-19 23:47:01,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:01,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 78 [2020-07-19 23:47:01,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603451040] [2020-07-19 23:47:01,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 78 states [2020-07-19 23:47:01,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:01,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2020-07-19 23:47:01,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2711, Invalid=3295, Unknown=0, NotChecked=0, Total=6006 [2020-07-19 23:47:01,944 INFO L87 Difference]: Start difference. First operand 510 states and 510 transitions. Second operand 78 states. [2020-07-19 23:47:03,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:03,307 INFO L93 Difference]: Finished difference Result 520 states and 520 transitions. [2020-07-19 23:47:03,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2020-07-19 23:47:03,308 INFO L78 Accepts]: Start accepts. Automaton has 78 states. Word has length 507 [2020-07-19 23:47:03,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:03,311 INFO L225 Difference]: With dead ends: 520 [2020-07-19 23:47:03,311 INFO L226 Difference]: Without dead ends: 518 [2020-07-19 23:47:03,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=2717, Invalid=3445, Unknown=0, NotChecked=0, Total=6162 [2020-07-19 23:47:03,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2020-07-19 23:47:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 517. [2020-07-19 23:47:03,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-07-19 23:47:03,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 517 transitions. [2020-07-19 23:47:03,321 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 517 transitions. Word has length 507 [2020-07-19 23:47:03,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:03,322 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 517 transitions. [2020-07-19 23:47:03,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 78 states. [2020-07-19 23:47:03,322 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 517 transitions. [2020-07-19 23:47:03,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2020-07-19 23:47:03,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:03,326 INFO L422 BasicCegarLoop]: trace histogram [73, 73, 73, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:03,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:03,541 INFO L427 AbstractCegarLoop]: === Iteration 73 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:03,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:03,542 INFO L82 PathProgramCache]: Analyzing trace with hash -700814027, now seen corresponding path program 72 times [2020-07-19 23:47:03,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:03,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246120436] [2020-07-19 23:47:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 144 proven. 7812 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2020-07-19 23:47:07,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246120436] [2020-07-19 23:47:07,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350839473] [2020-07-19 23:47:07,206 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7521c527 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 [2020-07-19 23:47:07,334 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7521c527 issued 4 check-sat command(s) [2020-07-19 23:47:07,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:07,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 76 conjunts are in the unsatisfiable core [2020-07-19 23:47:07,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:07,365 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:07,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18180 backedges. 144 proven. 7812 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2020-07-19 23:47:07,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:07,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 79 [2020-07-19 23:47:07,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973304194] [2020-07-19 23:47:07,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 79 states [2020-07-19 23:47:07,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:07,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2020-07-19 23:47:07,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2785, Invalid=3377, Unknown=0, NotChecked=0, Total=6162 [2020-07-19 23:47:07,592 INFO L87 Difference]: Start difference. First operand 517 states and 517 transitions. Second operand 79 states. [2020-07-19 23:47:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:08,842 INFO L93 Difference]: Finished difference Result 527 states and 527 transitions. [2020-07-19 23:47:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-07-19 23:47:08,842 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 514 [2020-07-19 23:47:08,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:08,846 INFO L225 Difference]: With dead ends: 527 [2020-07-19 23:47:08,846 INFO L226 Difference]: Without dead ends: 525 [2020-07-19 23:47:08,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 659 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2791, Invalid=3529, Unknown=0, NotChecked=0, Total=6320 [2020-07-19 23:47:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-07-19 23:47:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 524. [2020-07-19 23:47:08,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-07-19 23:47:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 524 transitions. [2020-07-19 23:47:08,854 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 524 transitions. Word has length 514 [2020-07-19 23:47:08,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:08,855 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 524 transitions. [2020-07-19 23:47:08,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 79 states. [2020-07-19 23:47:08,855 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 524 transitions. [2020-07-19 23:47:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2020-07-19 23:47:08,859 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:08,859 INFO L422 BasicCegarLoop]: trace histogram [74, 74, 74, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:09,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:09,061 INFO L427 AbstractCegarLoop]: === Iteration 74 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:09,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1474392200, now seen corresponding path program 73 times [2020-07-19 23:47:09,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:09,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671852150] [2020-07-19 23:47:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:12,869 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 146 proven. 8030 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2020-07-19 23:47:12,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671852150] [2020-07-19 23:47:12,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914089560] [2020-07-19 23:47:12,870 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@412fb75b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:13,009 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@412fb75b issued 4 check-sat command(s) [2020-07-19 23:47:13,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:13,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 77 conjunts are in the unsatisfiable core [2020-07-19 23:47:13,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:13,034 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 18688 backedges. 146 proven. 8030 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2020-07-19 23:47:13,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:13,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 80 [2020-07-19 23:47:13,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677886201] [2020-07-19 23:47:13,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 80 states [2020-07-19 23:47:13,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:13,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2020-07-19 23:47:13,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2860, Invalid=3460, Unknown=0, NotChecked=0, Total=6320 [2020-07-19 23:47:13,268 INFO L87 Difference]: Start difference. First operand 524 states and 524 transitions. Second operand 80 states. [2020-07-19 23:47:14,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:14,484 INFO L93 Difference]: Finished difference Result 534 states and 534 transitions. [2020-07-19 23:47:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2020-07-19 23:47:14,484 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 521 [2020-07-19 23:47:14,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:14,487 INFO L225 Difference]: With dead ends: 534 [2020-07-19 23:47:14,487 INFO L226 Difference]: Without dead ends: 532 [2020-07-19 23:47:14,488 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 [2020-07-19 23:47:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2020-07-19 23:47:14,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 531. [2020-07-19 23:47:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-07-19 23:47:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 531 transitions. [2020-07-19 23:47:14,495 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 531 transitions. Word has length 521 [2020-07-19 23:47:14,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:14,496 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 531 transitions. [2020-07-19 23:47:14,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 80 states. [2020-07-19 23:47:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 531 transitions. [2020-07-19 23:47:14,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2020-07-19 23:47:14,499 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:14,499 INFO L422 BasicCegarLoop]: trace histogram [75, 75, 75, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:14,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:14,700 INFO L427 AbstractCegarLoop]: === Iteration 75 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:14,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1306696149, now seen corresponding path program 74 times [2020-07-19 23:47:14,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:14,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722775994] [2020-07-19 23:47:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 148 proven. 8251 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2020-07-19 23:47:18,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722775994] [2020-07-19 23:47:18,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866811425] [2020-07-19 23:47:18,627 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bfbd292 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 [2020-07-19 23:47:18,762 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bfbd292 issued 4 check-sat command(s) [2020-07-19 23:47:18,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:18,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 78 conjunts are in the unsatisfiable core [2020-07-19 23:47:18,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:18,787 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 19203 backedges. 148 proven. 8251 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2020-07-19 23:47:19,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:19,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 81 [2020-07-19 23:47:19,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276065128] [2020-07-19 23:47:19,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 81 states [2020-07-19 23:47:19,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:19,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2020-07-19 23:47:19,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2936, Invalid=3544, Unknown=0, NotChecked=0, Total=6480 [2020-07-19 23:47:19,012 INFO L87 Difference]: Start difference. First operand 531 states and 531 transitions. Second operand 81 states. [2020-07-19 23:47:20,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:20,284 INFO L93 Difference]: Finished difference Result 541 states and 541 transitions. [2020-07-19 23:47:20,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-07-19 23:47:20,285 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 528 [2020-07-19 23:47:20,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:20,287 INFO L225 Difference]: With dead ends: 541 [2020-07-19 23:47:20,287 INFO L226 Difference]: Without dead ends: 539 [2020-07-19 23:47:20,288 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 [2020-07-19 23:47:20,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-07-19 23:47:20,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2020-07-19 23:47:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-07-19 23:47:20,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2020-07-19 23:47:20,295 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 528 [2020-07-19 23:47:20,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:20,295 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2020-07-19 23:47:20,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 81 states. [2020-07-19 23:47:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2020-07-19 23:47:20,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-07-19 23:47:20,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:20,299 INFO L422 BasicCegarLoop]: trace histogram [76, 76, 76, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:20,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2020-07-19 23:47:20,499 INFO L427 AbstractCegarLoop]: === Iteration 76 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:20,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:20,500 INFO L82 PathProgramCache]: Analyzing trace with hash 330026984, now seen corresponding path program 75 times [2020-07-19 23:47:20,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:20,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938721447] [2020-07-19 23:47:20,501 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:20,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 150 proven. 8475 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2020-07-19 23:47:24,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938721447] [2020-07-19 23:47:24,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46015768] [2020-07-19 23:47:24,553 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6faf239a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:24,690 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6faf239a issued 4 check-sat command(s) [2020-07-19 23:47:24,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:24,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 79 conjunts are in the unsatisfiable core [2020-07-19 23:47:24,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:24,715 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:24,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19725 backedges. 150 proven. 8475 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2020-07-19 23:47:24,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:24,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 82 [2020-07-19 23:47:24,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445273845] [2020-07-19 23:47:24,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2020-07-19 23:47:24,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:24,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2020-07-19 23:47:24,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3013, Invalid=3629, Unknown=0, NotChecked=0, Total=6642 [2020-07-19 23:47:24,958 INFO L87 Difference]: Start difference. First operand 538 states and 538 transitions. Second operand 82 states. [2020-07-19 23:47:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:26,321 INFO L93 Difference]: Finished difference Result 548 states and 548 transitions. [2020-07-19 23:47:26,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2020-07-19 23:47:26,322 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 535 [2020-07-19 23:47:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:26,324 INFO L225 Difference]: With dead ends: 548 [2020-07-19 23:47:26,324 INFO L226 Difference]: Without dead ends: 546 [2020-07-19 23:47:26,324 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 [2020-07-19 23:47:26,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2020-07-19 23:47:26,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2020-07-19 23:47:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-07-19 23:47:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 545 transitions. [2020-07-19 23:47:26,332 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 545 transitions. Word has length 535 [2020-07-19 23:47:26,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:26,333 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 545 transitions. [2020-07-19 23:47:26,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 82 states. [2020-07-19 23:47:26,333 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 545 transitions. [2020-07-19 23:47:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2020-07-19 23:47:26,336 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:26,336 INFO L422 BasicCegarLoop]: trace histogram [77, 77, 77, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:26,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:26,537 INFO L427 AbstractCegarLoop]: === Iteration 77 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:26,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash 519057013, now seen corresponding path program 76 times [2020-07-19 23:47:26,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:26,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385686741] [2020-07-19 23:47:26,539 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 152 proven. 8702 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2020-07-19 23:47:30,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385686741] [2020-07-19 23:47:30,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508008641] [2020-07-19 23:47:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f1982cc 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 [2020-07-19 23:47:30,871 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f1982cc issued 4 check-sat command(s) [2020-07-19 23:47:30,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:30,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 80 conjunts are in the unsatisfiable core [2020-07-19 23:47:30,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:30,900 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:31,138 INFO L134 CoverageAnalysis]: Checked inductivity of 20254 backedges. 152 proven. 8702 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2020-07-19 23:47:31,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:31,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 83 [2020-07-19 23:47:31,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618321081] [2020-07-19 23:47:31,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 83 states [2020-07-19 23:47:31,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:31,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2020-07-19 23:47:31,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3091, Invalid=3715, Unknown=0, NotChecked=0, Total=6806 [2020-07-19 23:47:31,140 INFO L87 Difference]: Start difference. First operand 545 states and 545 transitions. Second operand 83 states. [2020-07-19 23:47:32,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:32,392 INFO L93 Difference]: Finished difference Result 555 states and 555 transitions. [2020-07-19 23:47:32,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2020-07-19 23:47:32,393 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 542 [2020-07-19 23:47:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:32,396 INFO L225 Difference]: With dead ends: 555 [2020-07-19 23:47:32,396 INFO L226 Difference]: Without dead ends: 553 [2020-07-19 23:47:32,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 695 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=3097, Invalid=3875, Unknown=0, NotChecked=0, Total=6972 [2020-07-19 23:47:32,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-07-19 23:47:32,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 552. [2020-07-19 23:47:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-07-19 23:47:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 552 transitions. [2020-07-19 23:47:32,405 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 552 transitions. Word has length 542 [2020-07-19 23:47:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:32,405 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 552 transitions. [2020-07-19 23:47:32,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 83 states. [2020-07-19 23:47:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 552 transitions. [2020-07-19 23:47:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2020-07-19 23:47:32,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:32,408 INFO L422 BasicCegarLoop]: trace histogram [78, 78, 78, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:32,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:32,609 INFO L427 AbstractCegarLoop]: === Iteration 78 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:32,610 INFO L82 PathProgramCache]: Analyzing trace with hash -2069117112, now seen corresponding path program 77 times [2020-07-19 23:47:32,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:32,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348716947] [2020-07-19 23:47:32,611 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:37,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 154 proven. 8932 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2020-07-19 23:47:37,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348716947] [2020-07-19 23:47:37,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442587996] [2020-07-19 23:47:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1709cdd1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:37,239 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1709cdd1 issued 4 check-sat command(s) [2020-07-19 23:47:37,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:37,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 946 conjuncts, 81 conjunts are in the unsatisfiable core [2020-07-19 23:47:37,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:37,278 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 20790 backedges. 154 proven. 8932 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2020-07-19 23:47:37,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:37,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 84 [2020-07-19 23:47:37,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255466353] [2020-07-19 23:47:37,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 84 states [2020-07-19 23:47:37,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:37,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2020-07-19 23:47:37,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3170, Invalid=3802, Unknown=0, NotChecked=0, Total=6972 [2020-07-19 23:47:37,514 INFO L87 Difference]: Start difference. First operand 552 states and 552 transitions. Second operand 84 states. [2020-07-19 23:47:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:38,944 INFO L93 Difference]: Finished difference Result 562 states and 562 transitions. [2020-07-19 23:47:38,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-07-19 23:47:38,944 INFO L78 Accepts]: Start accepts. Automaton has 84 states. Word has length 549 [2020-07-19 23:47:38,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:38,947 INFO L225 Difference]: With dead ends: 562 [2020-07-19 23:47:38,948 INFO L226 Difference]: Without dead ends: 560 [2020-07-19 23:47:38,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=3176, Invalid=3964, Unknown=0, NotChecked=0, Total=7140 [2020-07-19 23:47:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-07-19 23:47:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2020-07-19 23:47:38,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-07-19 23:47:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 559 transitions. [2020-07-19 23:47:38,956 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 559 transitions. Word has length 549 [2020-07-19 23:47:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:38,957 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 559 transitions. [2020-07-19 23:47:38,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 84 states. [2020-07-19 23:47:38,957 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 559 transitions. [2020-07-19 23:47:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-07-19 23:47:38,960 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:38,960 INFO L422 BasicCegarLoop]: trace histogram [79, 79, 79, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:39,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2020-07-19 23:47:39,161 INFO L427 AbstractCegarLoop]: === Iteration 79 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:39,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:39,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1748161771, now seen corresponding path program 78 times [2020-07-19 23:47:39,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:39,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732922376] [2020-07-19 23:47:39,162 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 156 proven. 9165 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2020-07-19 23:47:43,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732922376] [2020-07-19 23:47:43,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047830441] [2020-07-19 23:47:43,613 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8439d1c 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 [2020-07-19 23:47:43,759 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8439d1c issued 4 check-sat command(s) [2020-07-19 23:47:43,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:43,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 82 conjunts are in the unsatisfiable core [2020-07-19 23:47:43,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:43,791 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 21333 backedges. 156 proven. 9165 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2020-07-19 23:47:44,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:44,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 85 [2020-07-19 23:47:44,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921381140] [2020-07-19 23:47:44,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 85 states [2020-07-19 23:47:44,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:44,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2020-07-19 23:47:44,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3250, Invalid=3890, Unknown=0, NotChecked=0, Total=7140 [2020-07-19 23:47:44,060 INFO L87 Difference]: Start difference. First operand 559 states and 559 transitions. Second operand 85 states. [2020-07-19 23:47:45,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:45,489 INFO L93 Difference]: Finished difference Result 569 states and 569 transitions. [2020-07-19 23:47:45,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-07-19 23:47:45,490 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 556 [2020-07-19 23:47:45,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:45,494 INFO L225 Difference]: With dead ends: 569 [2020-07-19 23:47:45,494 INFO L226 Difference]: Without dead ends: 567 [2020-07-19 23:47:45,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3256, Invalid=4054, Unknown=0, NotChecked=0, Total=7310 [2020-07-19 23:47:45,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-07-19 23:47:45,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2020-07-19 23:47:45,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2020-07-19 23:47:45,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 566 transitions. [2020-07-19 23:47:45,503 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 566 transitions. Word has length 556 [2020-07-19 23:47:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:45,504 INFO L479 AbstractCegarLoop]: Abstraction has 566 states and 566 transitions. [2020-07-19 23:47:45,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 85 states. [2020-07-19 23:47:45,504 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 566 transitions. [2020-07-19 23:47:45,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-07-19 23:47:45,508 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:45,509 INFO L422 BasicCegarLoop]: trace histogram [80, 80, 80, 79, 79, 79, 79, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:45,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-07-19 23:47:45,721 INFO L427 AbstractCegarLoop]: === Iteration 80 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:45,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:45,722 INFO L82 PathProgramCache]: Analyzing trace with hash 825710248, now seen corresponding path program 79 times [2020-07-19 23:47:45,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:45,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271743981] [2020-07-19 23:47:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:50,294 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 158 proven. 9401 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2020-07-19 23:47:50,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271743981] [2020-07-19 23:47:50,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018332566] [2020-07-19 23:47:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8f3ad2f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:50,437 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8f3ad2f issued 4 check-sat command(s) [2020-07-19 23:47:50,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:50,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 83 conjunts are in the unsatisfiable core [2020-07-19 23:47:50,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:50,463 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 21883 backedges. 158 proven. 9401 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2020-07-19 23:47:50,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:50,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 86 [2020-07-19 23:47:50,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547251372] [2020-07-19 23:47:50,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 86 states [2020-07-19 23:47:50,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:50,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2020-07-19 23:47:50,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3331, Invalid=3979, Unknown=0, NotChecked=0, Total=7310 [2020-07-19 23:47:50,743 INFO L87 Difference]: Start difference. First operand 566 states and 566 transitions. Second operand 86 states. [2020-07-19 23:47:52,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:52,108 INFO L93 Difference]: Finished difference Result 576 states and 576 transitions. [2020-07-19 23:47:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2020-07-19 23:47:52,109 INFO L78 Accepts]: Start accepts. Automaton has 86 states. Word has length 563 [2020-07-19 23:47:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:52,112 INFO L225 Difference]: With dead ends: 576 [2020-07-19 23:47:52,112 INFO L226 Difference]: Without dead ends: 574 [2020-07-19 23:47:52,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=3337, Invalid=4145, Unknown=0, NotChecked=0, Total=7482 [2020-07-19 23:47:52,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-07-19 23:47:52,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 573. [2020-07-19 23:47:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-07-19 23:47:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 573 transitions. [2020-07-19 23:47:52,122 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 573 transitions. Word has length 563 [2020-07-19 23:47:52,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:52,122 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 573 transitions. [2020-07-19 23:47:52,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 86 states. [2020-07-19 23:47:52,122 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 573 transitions. [2020-07-19 23:47:52,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-07-19 23:47:52,125 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:52,126 INFO L422 BasicCegarLoop]: trace histogram [81, 81, 81, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:52,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:52,326 INFO L427 AbstractCegarLoop]: === Iteration 81 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:52,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:52,327 INFO L82 PathProgramCache]: Analyzing trace with hash -2057072715, now seen corresponding path program 80 times [2020-07-19 23:47:52,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:52,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50468658] [2020-07-19 23:47:52,328 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:47:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 160 proven. 9640 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2020-07-19 23:47:57,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50468658] [2020-07-19 23:47:57,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730586514] [2020-07-19 23:47:57,015 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a224713 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 [2020-07-19 23:47:57,162 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7a224713 issued 4 check-sat command(s) [2020-07-19 23:47:57,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:47:57,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 84 conjunts are in the unsatisfiable core [2020-07-19 23:47:57,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:47:57,189 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:47:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 22440 backedges. 160 proven. 9640 refuted. 0 times theorem prover too weak. 12640 trivial. 0 not checked. [2020-07-19 23:47:57,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:47:57,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 87 [2020-07-19 23:47:57,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911950129] [2020-07-19 23:47:57,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 87 states [2020-07-19 23:47:57,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:47:57,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2020-07-19 23:47:57,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3413, Invalid=4069, Unknown=0, NotChecked=0, Total=7482 [2020-07-19 23:47:57,473 INFO L87 Difference]: Start difference. First operand 573 states and 573 transitions. Second operand 87 states. [2020-07-19 23:47:58,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:47:58,917 INFO L93 Difference]: Finished difference Result 583 states and 583 transitions. [2020-07-19 23:47:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-07-19 23:47:58,918 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 570 [2020-07-19 23:47:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:47:58,920 INFO L225 Difference]: With dead ends: 583 [2020-07-19 23:47:58,920 INFO L226 Difference]: Without dead ends: 581 [2020-07-19 23:47:58,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=3419, Invalid=4237, Unknown=0, NotChecked=0, Total=7656 [2020-07-19 23:47:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2020-07-19 23:47:58,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2020-07-19 23:47:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-19 23:47:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 580 transitions. [2020-07-19 23:47:58,930 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 580 transitions. Word has length 570 [2020-07-19 23:47:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:47:58,931 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 580 transitions. [2020-07-19 23:47:58,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 87 states. [2020-07-19 23:47:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 580 transitions. [2020-07-19 23:47:58,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2020-07-19 23:47:58,934 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:47:58,934 INFO L422 BasicCegarLoop]: trace histogram [82, 82, 82, 81, 81, 81, 81, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:47:59,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,81 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:47:59,135 INFO L427 AbstractCegarLoop]: === Iteration 82 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:47:59,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:47:59,136 INFO L82 PathProgramCache]: Analyzing trace with hash -786137592, now seen corresponding path program 81 times [2020-07-19 23:47:59,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:47:59,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18863076] [2020-07-19 23:47:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:47:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 162 proven. 9882 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2020-07-19 23:48:04,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18863076] [2020-07-19 23:48:04,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774483227] [2020-07-19 23:48:04,059 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48f1ddcf No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:04,205 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@48f1ddcf issued 4 check-sat command(s) [2020-07-19 23:48:04,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:04,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 85 conjunts are in the unsatisfiable core [2020-07-19 23:48:04,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:04,231 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:04,518 INFO L134 CoverageAnalysis]: Checked inductivity of 23004 backedges. 162 proven. 9882 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2020-07-19 23:48:04,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:04,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 88 [2020-07-19 23:48:04,519 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475559708] [2020-07-19 23:48:04,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 88 states [2020-07-19 23:48:04,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:04,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2020-07-19 23:48:04,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3496, Invalid=4160, Unknown=0, NotChecked=0, Total=7656 [2020-07-19 23:48:04,520 INFO L87 Difference]: Start difference. First operand 580 states and 580 transitions. Second operand 88 states. [2020-07-19 23:48:06,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:48:06,055 INFO L93 Difference]: Finished difference Result 590 states and 590 transitions. [2020-07-19 23:48:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2020-07-19 23:48:06,056 INFO L78 Accepts]: Start accepts. Automaton has 88 states. Word has length 577 [2020-07-19 23:48:06,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:48:06,059 INFO L225 Difference]: With dead ends: 590 [2020-07-19 23:48:06,059 INFO L226 Difference]: Without dead ends: 588 [2020-07-19 23:48:06,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3502, Invalid=4330, Unknown=0, NotChecked=0, Total=7832 [2020-07-19 23:48:06,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-07-19 23:48:06,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2020-07-19 23:48:06,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2020-07-19 23:48:06,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 587 transitions. [2020-07-19 23:48:06,068 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 587 transitions. Word has length 577 [2020-07-19 23:48:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:48:06,069 INFO L479 AbstractCegarLoop]: Abstraction has 587 states and 587 transitions. [2020-07-19 23:48:06,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 88 states. [2020-07-19 23:48:06,069 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 587 transitions. [2020-07-19 23:48:06,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2020-07-19 23:48:06,072 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:48:06,072 INFO L422 BasicCegarLoop]: trace histogram [83, 83, 83, 82, 82, 82, 82, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:48:06,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:06,273 INFO L427 AbstractCegarLoop]: === Iteration 83 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:48:06,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:48:06,274 INFO L82 PathProgramCache]: Analyzing trace with hash -753050539, now seen corresponding path program 82 times [2020-07-19 23:48:06,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:48:06,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017668364] [2020-07-19 23:48:06,275 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:48:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:11,260 INFO L134 CoverageAnalysis]: Checked inductivity of 23575 backedges. 164 proven. 10127 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2020-07-19 23:48:11,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017668364] [2020-07-19 23:48:11,260 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133765729] [2020-07-19 23:48:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@29c31b6e 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 [2020-07-19 23:48:11,412 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@29c31b6e issued 4 check-sat command(s) [2020-07-19 23:48:11,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:11,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 86 conjunts are in the unsatisfiable core [2020-07-19 23:48:11,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:11,438 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 23575 backedges. 164 proven. 10127 refuted. 0 times theorem prover too weak. 13284 trivial. 0 not checked. [2020-07-19 23:48:11,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:11,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 89 [2020-07-19 23:48:11,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767393764] [2020-07-19 23:48:11,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 89 states [2020-07-19 23:48:11,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:11,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2020-07-19 23:48:11,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3580, Invalid=4252, Unknown=0, NotChecked=0, Total=7832 [2020-07-19 23:48:11,732 INFO L87 Difference]: Start difference. First operand 587 states and 587 transitions. Second operand 89 states. [2020-07-19 23:48:13,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:48:13,307 INFO L93 Difference]: Finished difference Result 597 states and 597 transitions. [2020-07-19 23:48:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2020-07-19 23:48:13,308 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 584 [2020-07-19 23:48:13,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:48:13,311 INFO L225 Difference]: With dead ends: 597 [2020-07-19 23:48:13,311 INFO L226 Difference]: Without dead ends: 595 [2020-07-19 23:48:13,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3586, Invalid=4424, Unknown=0, NotChecked=0, Total=8010 [2020-07-19 23:48:13,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2020-07-19 23:48:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 594. [2020-07-19 23:48:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-07-19 23:48:13,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 594 transitions. [2020-07-19 23:48:13,320 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 594 transitions. Word has length 584 [2020-07-19 23:48:13,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:48:13,320 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 594 transitions. [2020-07-19 23:48:13,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 89 states. [2020-07-19 23:48:13,320 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 594 transitions. [2020-07-19 23:48:13,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-07-19 23:48:13,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:48:13,324 INFO L422 BasicCegarLoop]: trace histogram [84, 84, 84, 83, 83, 83, 83, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:48:13,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,83 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:13,525 INFO L427 AbstractCegarLoop]: === Iteration 84 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:48:13,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:48:13,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1379320472, now seen corresponding path program 83 times [2020-07-19 23:48:13,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:48:13,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140082035] [2020-07-19 23:48:13,526 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:48:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 24153 backedges. 166 proven. 10375 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2020-07-19 23:48:18,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140082035] [2020-07-19 23:48:18,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579845378] [2020-07-19 23:48:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3221a3d No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:18,809 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3221a3d issued 4 check-sat command(s) [2020-07-19 23:48:18,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:18,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 87 conjunts are in the unsatisfiable core [2020-07-19 23:48:18,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:18,847 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:19,176 INFO L134 CoverageAnalysis]: Checked inductivity of 24153 backedges. 166 proven. 10375 refuted. 0 times theorem prover too weak. 13612 trivial. 0 not checked. [2020-07-19 23:48:19,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:19,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 90 [2020-07-19 23:48:19,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039659542] [2020-07-19 23:48:19,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 90 states [2020-07-19 23:48:19,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:19,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2020-07-19 23:48:19,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3665, Invalid=4345, Unknown=0, NotChecked=0, Total=8010 [2020-07-19 23:48:19,178 INFO L87 Difference]: Start difference. First operand 594 states and 594 transitions. Second operand 90 states. [2020-07-19 23:48:20,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:48:20,842 INFO L93 Difference]: Finished difference Result 604 states and 604 transitions. [2020-07-19 23:48:20,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2020-07-19 23:48:20,843 INFO L78 Accepts]: Start accepts. Automaton has 90 states. Word has length 591 [2020-07-19 23:48:20,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:48:20,847 INFO L225 Difference]: With dead ends: 604 [2020-07-19 23:48:20,847 INFO L226 Difference]: Without dead ends: 602 [2020-07-19 23:48:20,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 847 GetRequests, 758 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=3671, Invalid=4519, Unknown=0, NotChecked=0, Total=8190 [2020-07-19 23:48:20,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-19 23:48:20,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 601. [2020-07-19 23:48:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-07-19 23:48:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 601 transitions. [2020-07-19 23:48:20,856 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 601 transitions. Word has length 591 [2020-07-19 23:48:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:48:20,856 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 601 transitions. [2020-07-19 23:48:20,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 90 states. [2020-07-19 23:48:20,856 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 601 transitions. [2020-07-19 23:48:20,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-07-19 23:48:20,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:48:20,860 INFO L422 BasicCegarLoop]: trace histogram [85, 85, 85, 84, 84, 84, 84, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:48:21,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:21,061 INFO L427 AbstractCegarLoop]: === Iteration 85 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:48:21,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:48:21,062 INFO L82 PathProgramCache]: Analyzing trace with hash 719622389, now seen corresponding path program 84 times [2020-07-19 23:48:21,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:48:21,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893805865] [2020-07-19 23:48:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:48:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 24738 backedges. 168 proven. 10626 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2020-07-19 23:48:26,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893805865] [2020-07-19 23:48:26,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439628359] [2020-07-19 23:48:26,410 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57522cf2 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 [2020-07-19 23:48:26,565 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57522cf2 issued 4 check-sat command(s) [2020-07-19 23:48:26,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:26,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 88 conjunts are in the unsatisfiable core [2020-07-19 23:48:26,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:26,596 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:26,889 INFO L134 CoverageAnalysis]: Checked inductivity of 24738 backedges. 168 proven. 10626 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2020-07-19 23:48:26,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:26,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 91 [2020-07-19 23:48:26,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268915876] [2020-07-19 23:48:26,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 91 states [2020-07-19 23:48:26,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:26,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2020-07-19 23:48:26,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3751, Invalid=4439, Unknown=0, NotChecked=0, Total=8190 [2020-07-19 23:48:26,891 INFO L87 Difference]: Start difference. First operand 601 states and 601 transitions. Second operand 91 states. [2020-07-19 23:48:28,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:48:28,471 INFO L93 Difference]: Finished difference Result 611 states and 611 transitions. [2020-07-19 23:48:28,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2020-07-19 23:48:28,472 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 598 [2020-07-19 23:48:28,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:48:28,476 INFO L225 Difference]: With dead ends: 611 [2020-07-19 23:48:28,477 INFO L226 Difference]: Without dead ends: 609 [2020-07-19 23:48:28,478 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 [2020-07-19 23:48:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-07-19 23:48:28,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2020-07-19 23:48:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-07-19 23:48:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 608 transitions. [2020-07-19 23:48:28,488 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 608 transitions. Word has length 598 [2020-07-19 23:48:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:48:28,489 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 608 transitions. [2020-07-19 23:48:28,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 91 states. [2020-07-19 23:48:28,489 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 608 transitions. [2020-07-19 23:48:28,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2020-07-19 23:48:28,494 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:48:28,494 INFO L422 BasicCegarLoop]: trace histogram [86, 86, 86, 85, 85, 85, 85, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:48:28,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2020-07-19 23:48:28,709 INFO L427 AbstractCegarLoop]: === Iteration 86 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:48:28,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:48:28,710 INFO L82 PathProgramCache]: Analyzing trace with hash 33264840, now seen corresponding path program 85 times [2020-07-19 23:48:28,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:48:28,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876016251] [2020-07-19 23:48:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:48:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:34,178 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 170 proven. 10880 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2020-07-19 23:48:34,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876016251] [2020-07-19 23:48:34,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380056749] [2020-07-19 23:48:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4365158b No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:34,330 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4365158b issued 4 check-sat command(s) [2020-07-19 23:48:34,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:34,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 89 conjunts are in the unsatisfiable core [2020-07-19 23:48:34,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:34,357 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 25330 backedges. 170 proven. 10880 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2020-07-19 23:48:34,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:34,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 92 [2020-07-19 23:48:34,638 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16785698] [2020-07-19 23:48:34,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 92 states [2020-07-19 23:48:34,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:34,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2020-07-19 23:48:34,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3838, Invalid=4534, Unknown=0, NotChecked=0, Total=8372 [2020-07-19 23:48:34,640 INFO L87 Difference]: Start difference. First operand 608 states and 608 transitions. Second operand 92 states. [2020-07-19 23:48:36,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:48:36,133 INFO L93 Difference]: Finished difference Result 618 states and 618 transitions. [2020-07-19 23:48:36,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2020-07-19 23:48:36,134 INFO L78 Accepts]: Start accepts. Automaton has 92 states. Word has length 605 [2020-07-19 23:48:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:48:36,137 INFO L225 Difference]: With dead ends: 618 [2020-07-19 23:48:36,137 INFO L226 Difference]: Without dead ends: 616 [2020-07-19 23:48:36,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 867 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=3844, Invalid=4712, Unknown=0, NotChecked=0, Total=8556 [2020-07-19 23:48:36,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-07-19 23:48:36,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2020-07-19 23:48:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2020-07-19 23:48:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 615 transitions. [2020-07-19 23:48:36,146 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 615 transitions. Word has length 605 [2020-07-19 23:48:36,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:48:36,146 INFO L479 AbstractCegarLoop]: Abstraction has 615 states and 615 transitions. [2020-07-19 23:48:36,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 92 states. [2020-07-19 23:48:36,147 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 615 transitions. [2020-07-19 23:48:36,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-07-19 23:48:36,150 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:48:36,150 INFO L422 BasicCegarLoop]: trace histogram [87, 87, 87, 86, 86, 86, 86, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:48:36,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,86 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:36,351 INFO L427 AbstractCegarLoop]: === Iteration 87 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:48:36,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:48:36,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1792856683, now seen corresponding path program 86 times [2020-07-19 23:48:36,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:48:36,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984831009] [2020-07-19 23:48:36,353 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:48:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 25929 backedges. 172 proven. 11137 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2020-07-19 23:48:42,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984831009] [2020-07-19 23:48:42,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9258189] [2020-07-19 23:48:42,029 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ba711b1 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 [2020-07-19 23:48:42,187 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ba711b1 issued 4 check-sat command(s) [2020-07-19 23:48:42,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:42,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 90 conjunts are in the unsatisfiable core [2020-07-19 23:48:42,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:42,222 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:42,571 INFO L134 CoverageAnalysis]: Checked inductivity of 25929 backedges. 172 proven. 11137 refuted. 0 times theorem prover too weak. 14620 trivial. 0 not checked. [2020-07-19 23:48:42,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:42,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 93 [2020-07-19 23:48:42,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825270446] [2020-07-19 23:48:42,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 93 states [2020-07-19 23:48:42,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:42,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2020-07-19 23:48:42,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3926, Invalid=4630, Unknown=0, NotChecked=0, Total=8556 [2020-07-19 23:48:42,573 INFO L87 Difference]: Start difference. First operand 615 states and 615 transitions. Second operand 93 states. [2020-07-19 23:48:44,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:48:44,326 INFO L93 Difference]: Finished difference Result 625 states and 625 transitions. [2020-07-19 23:48:44,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2020-07-19 23:48:44,327 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 612 [2020-07-19 23:48:44,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:48:44,330 INFO L225 Difference]: With dead ends: 625 [2020-07-19 23:48:44,330 INFO L226 Difference]: Without dead ends: 623 [2020-07-19 23:48:44,330 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 [2020-07-19 23:48:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-07-19 23:48:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 622. [2020-07-19 23:48:44,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-19 23:48:44,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 622 transitions. [2020-07-19 23:48:44,338 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 622 transitions. Word has length 612 [2020-07-19 23:48:44,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:48:44,339 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 622 transitions. [2020-07-19 23:48:44,339 INFO L480 AbstractCegarLoop]: Interpolant automaton has 93 states. [2020-07-19 23:48:44,339 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 622 transitions. [2020-07-19 23:48:44,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-07-19 23:48:44,342 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:48:44,342 INFO L422 BasicCegarLoop]: trace histogram [88, 88, 88, 87, 87, 87, 87, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:48:44,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2020-07-19 23:48:44,543 INFO L427 AbstractCegarLoop]: === Iteration 88 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:48:44,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:48:44,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1511097384, now seen corresponding path program 87 times [2020-07-19 23:48:44,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:48:44,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402214468] [2020-07-19 23:48:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:48:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 26535 backedges. 174 proven. 11397 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2020-07-19 23:48:50,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402214468] [2020-07-19 23:48:50,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425369872] [2020-07-19 23:48:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2360daee No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:48:50,535 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2360daee issued 4 check-sat command(s) [2020-07-19 23:48:50,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:50,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 91 conjunts are in the unsatisfiable core [2020-07-19 23:48:50,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:50,568 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 26535 backedges. 174 proven. 11397 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2020-07-19 23:48:50,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:50,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 94 [2020-07-19 23:48:50,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658849890] [2020-07-19 23:48:50,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 94 states [2020-07-19 23:48:50,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:50,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2020-07-19 23:48:50,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4015, Invalid=4727, Unknown=0, NotChecked=0, Total=8742 [2020-07-19 23:48:50,863 INFO L87 Difference]: Start difference. First operand 622 states and 622 transitions. Second operand 94 states. [2020-07-19 23:48:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:48:52,686 INFO L93 Difference]: Finished difference Result 632 states and 632 transitions. [2020-07-19 23:48:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2020-07-19 23:48:52,687 INFO L78 Accepts]: Start accepts. Automaton has 94 states. Word has length 619 [2020-07-19 23:48:52,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:48:52,690 INFO L225 Difference]: With dead ends: 632 [2020-07-19 23:48:52,690 INFO L226 Difference]: Without dead ends: 630 [2020-07-19 23:48:52,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=4021, Invalid=4909, Unknown=0, NotChecked=0, Total=8930 [2020-07-19 23:48:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-07-19 23:48:52,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 629. [2020-07-19 23:48:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-07-19 23:48:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 629 transitions. [2020-07-19 23:48:52,699 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 629 transitions. Word has length 619 [2020-07-19 23:48:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:48:52,699 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 629 transitions. [2020-07-19 23:48:52,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 94 states. [2020-07-19 23:48:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 629 transitions. [2020-07-19 23:48:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-07-19 23:48:52,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:48:52,703 INFO L422 BasicCegarLoop]: trace histogram [89, 89, 89, 88, 88, 88, 88, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:48:52,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2020-07-19 23:48:52,904 INFO L427 AbstractCegarLoop]: === Iteration 89 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:48:52,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:48:52,905 INFO L82 PathProgramCache]: Analyzing trace with hash 415445557, now seen corresponding path program 88 times [2020-07-19 23:48:52,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:48:52,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321827941] [2020-07-19 23:48:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:48:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:48:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 27148 backedges. 176 proven. 11660 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2020-07-19 23:48:58,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321827941] [2020-07-19 23:48:58,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451334228] [2020-07-19 23:48:58,915 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7360e9c0 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 [2020-07-19 23:48:59,076 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7360e9c0 issued 4 check-sat command(s) [2020-07-19 23:48:59,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:48:59,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 92 conjunts are in the unsatisfiable core [2020-07-19 23:48:59,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:48:59,105 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:48:59,418 INFO L134 CoverageAnalysis]: Checked inductivity of 27148 backedges. 176 proven. 11660 refuted. 0 times theorem prover too weak. 15312 trivial. 0 not checked. [2020-07-19 23:48:59,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:48:59,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 95 [2020-07-19 23:48:59,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248351879] [2020-07-19 23:48:59,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 95 states [2020-07-19 23:48:59,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:48:59,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2020-07-19 23:48:59,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4105, Invalid=4825, Unknown=0, NotChecked=0, Total=8930 [2020-07-19 23:48:59,421 INFO L87 Difference]: Start difference. First operand 629 states and 629 transitions. Second operand 95 states. [2020-07-19 23:49:01,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:49:01,277 INFO L93 Difference]: Finished difference Result 639 states and 639 transitions. [2020-07-19 23:49:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2020-07-19 23:49:01,278 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 626 [2020-07-19 23:49:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:49:01,281 INFO L225 Difference]: With dead ends: 639 [2020-07-19 23:49:01,281 INFO L226 Difference]: Without dead ends: 637 [2020-07-19 23:49:01,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=4111, Invalid=5009, Unknown=0, NotChecked=0, Total=9120 [2020-07-19 23:49:01,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-07-19 23:49:01,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 636. [2020-07-19 23:49:01,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2020-07-19 23:49:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 636 transitions. [2020-07-19 23:49:01,293 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 636 transitions. Word has length 626 [2020-07-19 23:49:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:49:01,293 INFO L479 AbstractCegarLoop]: Abstraction has 636 states and 636 transitions. [2020-07-19 23:49:01,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 95 states. [2020-07-19 23:49:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 636 transitions. [2020-07-19 23:49:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2020-07-19 23:49:01,299 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:49:01,299 INFO L422 BasicCegarLoop]: trace histogram [90, 90, 90, 89, 89, 89, 89, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:49:01,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:01,513 INFO L427 AbstractCegarLoop]: === Iteration 90 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:49:01,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:49:01,514 INFO L82 PathProgramCache]: Analyzing trace with hash -203355256, now seen corresponding path program 89 times [2020-07-19 23:49:01,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:49:01,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072510658] [2020-07-19 23:49:01,514 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:49:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:07,682 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 178 proven. 11926 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2020-07-19 23:49:07,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072510658] [2020-07-19 23:49:07,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677101247] [2020-07-19 23:49:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6dd71ea1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:07,849 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6dd71ea1 issued 4 check-sat command(s) [2020-07-19 23:49:07,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:49:07,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 93 conjunts are in the unsatisfiable core [2020-07-19 23:49:07,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:49:07,877 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:49:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 27768 backedges. 178 proven. 11926 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2020-07-19 23:49:08,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:49:08,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 96 [2020-07-19 23:49:08,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863652503] [2020-07-19 23:49:08,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 96 states [2020-07-19 23:49:08,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:49:08,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2020-07-19 23:49:08,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4196, Invalid=4924, Unknown=0, NotChecked=0, Total=9120 [2020-07-19 23:49:08,201 INFO L87 Difference]: Start difference. First operand 636 states and 636 transitions. Second operand 96 states. [2020-07-19 23:49:09,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:49:09,873 INFO L93 Difference]: Finished difference Result 646 states and 646 transitions. [2020-07-19 23:49:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2020-07-19 23:49:09,874 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 633 [2020-07-19 23:49:09,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:49:09,877 INFO L225 Difference]: With dead ends: 646 [2020-07-19 23:49:09,877 INFO L226 Difference]: Without dead ends: 644 [2020-07-19 23:49:09,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 907 GetRequests, 812 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=4202, Invalid=5110, Unknown=0, NotChecked=0, Total=9312 [2020-07-19 23:49:09,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-07-19 23:49:09,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 643. [2020-07-19 23:49:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-07-19 23:49:09,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 643 transitions. [2020-07-19 23:49:09,886 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 643 transitions. Word has length 633 [2020-07-19 23:49:09,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:49:09,886 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 643 transitions. [2020-07-19 23:49:09,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 96 states. [2020-07-19 23:49:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 643 transitions. [2020-07-19 23:49:09,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-07-19 23:49:09,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:49:09,890 INFO L422 BasicCegarLoop]: trace histogram [91, 91, 91, 90, 90, 90, 90, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:49:10,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:10,093 INFO L427 AbstractCegarLoop]: === Iteration 91 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:49:10,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:49:10,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1529781973, now seen corresponding path program 90 times [2020-07-19 23:49:10,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:49:10,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257425365] [2020-07-19 23:49:10,094 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:49:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:16,436 INFO L134 CoverageAnalysis]: Checked inductivity of 28395 backedges. 180 proven. 12195 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2020-07-19 23:49:16,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257425365] [2020-07-19 23:49:16,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106740249] [2020-07-19 23:49:16,437 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c8bad6b 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 [2020-07-19 23:49:16,606 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5c8bad6b issued 4 check-sat command(s) [2020-07-19 23:49:16,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:49:16,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 94 conjunts are in the unsatisfiable core [2020-07-19 23:49:16,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:49:16,643 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:49:16,971 INFO L134 CoverageAnalysis]: Checked inductivity of 28395 backedges. 180 proven. 12195 refuted. 0 times theorem prover too weak. 16020 trivial. 0 not checked. [2020-07-19 23:49:16,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:49:16,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 97 [2020-07-19 23:49:16,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973226775] [2020-07-19 23:49:16,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 97 states [2020-07-19 23:49:16,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:49:16,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2020-07-19 23:49:16,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4288, Invalid=5024, Unknown=0, NotChecked=0, Total=9312 [2020-07-19 23:49:16,973 INFO L87 Difference]: Start difference. First operand 643 states and 643 transitions. Second operand 97 states. [2020-07-19 23:49:18,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:49:18,847 INFO L93 Difference]: Finished difference Result 653 states and 653 transitions. [2020-07-19 23:49:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2020-07-19 23:49:18,849 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 640 [2020-07-19 23:49:18,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:49:18,852 INFO L225 Difference]: With dead ends: 653 [2020-07-19 23:49:18,852 INFO L226 Difference]: Without dead ends: 651 [2020-07-19 23:49:18,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=4294, Invalid=5212, Unknown=0, NotChecked=0, Total=9506 [2020-07-19 23:49:18,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2020-07-19 23:49:18,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 650. [2020-07-19 23:49:18,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-07-19 23:49:18,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 650 transitions. [2020-07-19 23:49:18,862 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 650 transitions. Word has length 640 [2020-07-19 23:49:18,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:49:18,863 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 650 transitions. [2020-07-19 23:49:18,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 97 states. [2020-07-19 23:49:18,863 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 650 transitions. [2020-07-19 23:49:18,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2020-07-19 23:49:18,867 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:49:18,867 INFO L422 BasicCegarLoop]: trace histogram [92, 92, 92, 91, 91, 91, 91, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:49:19,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:19,068 INFO L427 AbstractCegarLoop]: === Iteration 92 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:49:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:49:19,069 INFO L82 PathProgramCache]: Analyzing trace with hash 515910376, now seen corresponding path program 91 times [2020-07-19 23:49:19,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:49:19,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636829488] [2020-07-19 23:49:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:49:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:25,616 INFO L134 CoverageAnalysis]: Checked inductivity of 29029 backedges. 182 proven. 12467 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2020-07-19 23:49:25,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636829488] [2020-07-19 23:49:25,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643456406] [2020-07-19 23:49:25,617 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@683df40e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:25,786 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@683df40e issued 4 check-sat command(s) [2020-07-19 23:49:25,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:49:25,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 95 conjunts are in the unsatisfiable core [2020-07-19 23:49:25,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:49:25,815 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:49:26,132 INFO L134 CoverageAnalysis]: Checked inductivity of 29029 backedges. 182 proven. 12467 refuted. 0 times theorem prover too weak. 16380 trivial. 0 not checked. [2020-07-19 23:49:26,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:49:26,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 98 [2020-07-19 23:49:26,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188864062] [2020-07-19 23:49:26,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 98 states [2020-07-19 23:49:26,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:49:26,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2020-07-19 23:49:26,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4381, Invalid=5125, Unknown=0, NotChecked=0, Total=9506 [2020-07-19 23:49:26,136 INFO L87 Difference]: Start difference. First operand 650 states and 650 transitions. Second operand 98 states. [2020-07-19 23:49:27,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:49:27,877 INFO L93 Difference]: Finished difference Result 660 states and 660 transitions. [2020-07-19 23:49:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2020-07-19 23:49:27,878 INFO L78 Accepts]: Start accepts. Automaton has 98 states. Word has length 647 [2020-07-19 23:49:27,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:49:27,882 INFO L225 Difference]: With dead ends: 660 [2020-07-19 23:49:27,882 INFO L226 Difference]: Without dead ends: 658 [2020-07-19 23:49:27,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 830 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=4387, Invalid=5315, Unknown=0, NotChecked=0, Total=9702 [2020-07-19 23:49:27,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2020-07-19 23:49:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 657. [2020-07-19 23:49:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-07-19 23:49:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 657 transitions. [2020-07-19 23:49:27,914 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 657 transitions. Word has length 647 [2020-07-19 23:49:27,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:49:27,914 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 657 transitions. [2020-07-19 23:49:27,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 98 states. [2020-07-19 23:49:27,915 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 657 transitions. [2020-07-19 23:49:27,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 655 [2020-07-19 23:49:27,919 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:49:27,919 INFO L422 BasicCegarLoop]: trace histogram [93, 93, 93, 92, 92, 92, 92, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:49:28,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,92 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:28,120 INFO L427 AbstractCegarLoop]: === Iteration 93 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:49:28,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:49:28,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1078948725, now seen corresponding path program 92 times [2020-07-19 23:49:28,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:49:28,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750134448] [2020-07-19 23:49:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:49:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:34,860 INFO L134 CoverageAnalysis]: Checked inductivity of 29670 backedges. 184 proven. 12742 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2020-07-19 23:49:34,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750134448] [2020-07-19 23:49:34,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533758814] [2020-07-19 23:49:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f42ab6f 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 [2020-07-19 23:49:35,027 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6f42ab6f issued 4 check-sat command(s) [2020-07-19 23:49:35,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:49:35,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 96 conjunts are in the unsatisfiable core [2020-07-19 23:49:35,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:49:35,056 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:49:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 29670 backedges. 184 proven. 12742 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2020-07-19 23:49:35,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:49:35,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 99 [2020-07-19 23:49:35,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907326289] [2020-07-19 23:49:35,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 99 states [2020-07-19 23:49:35,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:49:35,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2020-07-19 23:49:35,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4475, Invalid=5227, Unknown=0, NotChecked=0, Total=9702 [2020-07-19 23:49:35,402 INFO L87 Difference]: Start difference. First operand 657 states and 657 transitions. Second operand 99 states. [2020-07-19 23:49:37,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:49:37,601 INFO L93 Difference]: Finished difference Result 667 states and 667 transitions. [2020-07-19 23:49:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2020-07-19 23:49:37,602 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 654 [2020-07-19 23:49:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:49:37,607 INFO L225 Difference]: With dead ends: 667 [2020-07-19 23:49:37,607 INFO L226 Difference]: Without dead ends: 665 [2020-07-19 23:49:37,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=4481, Invalid=5419, Unknown=0, NotChecked=0, Total=9900 [2020-07-19 23:49:37,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2020-07-19 23:49:37,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 664. [2020-07-19 23:49:37,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 664 states. [2020-07-19 23:49:37,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 664 transitions. [2020-07-19 23:49:37,619 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 664 transitions. Word has length 654 [2020-07-19 23:49:37,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:49:37,619 INFO L479 AbstractCegarLoop]: Abstraction has 664 states and 664 transitions. [2020-07-19 23:49:37,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 99 states. [2020-07-19 23:49:37,620 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 664 transitions. [2020-07-19 23:49:37,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2020-07-19 23:49:37,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:49:37,623 INFO L422 BasicCegarLoop]: trace histogram [94, 94, 94, 93, 93, 93, 93, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:49:37,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,93 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:37,824 INFO L427 AbstractCegarLoop]: === Iteration 94 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:49:37,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:49:37,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1685790136, now seen corresponding path program 93 times [2020-07-19 23:49:37,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:49:37,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127577495] [2020-07-19 23:49:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:49:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 30318 backedges. 186 proven. 13020 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2020-07-19 23:49:44,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127577495] [2020-07-19 23:49:44,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648507669] [2020-07-19 23:49:44,795 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@126b32e8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:44,963 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@126b32e8 issued 4 check-sat command(s) [2020-07-19 23:49:44,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:49:44,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 97 conjunts are in the unsatisfiable core [2020-07-19 23:49:44,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:49:44,992 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:49:45,344 INFO L134 CoverageAnalysis]: Checked inductivity of 30318 backedges. 186 proven. 13020 refuted. 0 times theorem prover too weak. 17112 trivial. 0 not checked. [2020-07-19 23:49:45,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:49:45,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 100 [2020-07-19 23:49:45,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459538945] [2020-07-19 23:49:45,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 100 states [2020-07-19 23:49:45,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:49:45,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2020-07-19 23:49:45,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4570, Invalid=5330, Unknown=0, NotChecked=0, Total=9900 [2020-07-19 23:49:45,346 INFO L87 Difference]: Start difference. First operand 664 states and 664 transitions. Second operand 100 states. [2020-07-19 23:49:47,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:49:47,854 INFO L93 Difference]: Finished difference Result 674 states and 674 transitions. [2020-07-19 23:49:47,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2020-07-19 23:49:47,855 INFO L78 Accepts]: Start accepts. Automaton has 100 states. Word has length 661 [2020-07-19 23:49:47,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:49:47,858 INFO L225 Difference]: With dead ends: 674 [2020-07-19 23:49:47,858 INFO L226 Difference]: Without dead ends: 672 [2020-07-19 23:49:47,859 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=4576, Invalid=5524, Unknown=0, NotChecked=0, Total=10100 [2020-07-19 23:49:47,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2020-07-19 23:49:47,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 671. [2020-07-19 23:49:47,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2020-07-19 23:49:47,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 671 transitions. [2020-07-19 23:49:47,869 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 671 transitions. Word has length 661 [2020-07-19 23:49:47,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:49:47,870 INFO L479 AbstractCegarLoop]: Abstraction has 671 states and 671 transitions. [2020-07-19 23:49:47,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 100 states. [2020-07-19 23:49:47,870 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 671 transitions. [2020-07-19 23:49:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-07-19 23:49:47,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:49:47,874 INFO L422 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:49:48,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,94 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:48,075 INFO L427 AbstractCegarLoop]: === Iteration 95 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:49:48,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:49:48,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1970294763, now seen corresponding path program 94 times [2020-07-19 23:49:48,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:49:48,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586756510] [2020-07-19 23:49:48,076 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:49:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:49:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 188 proven. 13301 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2020-07-19 23:49:55,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586756510] [2020-07-19 23:49:55,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966986133] [2020-07-19 23:49:55,281 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55954299 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 [2020-07-19 23:49:55,453 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@55954299 issued 4 check-sat command(s) [2020-07-19 23:49:55,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:49:55,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 98 conjunts are in the unsatisfiable core [2020-07-19 23:49:55,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:49:55,484 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:49:55,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 188 proven. 13301 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2020-07-19 23:49:55,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:49:55,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99] total 101 [2020-07-19 23:49:55,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768759801] [2020-07-19 23:49:55,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 101 states [2020-07-19 23:49:55,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:49:55,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2020-07-19 23:49:55,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4666, Invalid=5434, Unknown=0, NotChecked=0, Total=10100 [2020-07-19 23:49:55,825 INFO L87 Difference]: Start difference. First operand 671 states and 671 transitions. Second operand 101 states. [2020-07-19 23:49:58,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:49:58,297 INFO L93 Difference]: Finished difference Result 681 states and 681 transitions. [2020-07-19 23:49:58,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2020-07-19 23:49:58,299 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 668 [2020-07-19 23:49:58,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:49:58,302 INFO L225 Difference]: With dead ends: 681 [2020-07-19 23:49:58,303 INFO L226 Difference]: Without dead ends: 679 [2020-07-19 23:49:58,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 857 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=4672, Invalid=5630, Unknown=0, NotChecked=0, Total=10302 [2020-07-19 23:49:58,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-07-19 23:49:58,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 678. [2020-07-19 23:49:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-07-19 23:49:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 678 transitions. [2020-07-19 23:49:58,314 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 678 transitions. Word has length 668 [2020-07-19 23:49:58,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:49:58,315 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 678 transitions. [2020-07-19 23:49:58,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 101 states. [2020-07-19 23:49:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 678 transitions. [2020-07-19 23:49:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2020-07-19 23:49:58,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:49:58,321 INFO L422 BasicCegarLoop]: trace histogram [96, 96, 96, 95, 95, 95, 95, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:49:58,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:49:58,522 INFO L427 AbstractCegarLoop]: === Iteration 96 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:49:58,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:49:58,522 INFO L82 PathProgramCache]: Analyzing trace with hash -58379864, now seen corresponding path program 95 times [2020-07-19 23:49:58,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:49:58,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857859596] [2020-07-19 23:49:58,523 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:49:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 31635 backedges. 190 proven. 13585 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2020-07-19 23:50:05,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857859596] [2020-07-19 23:50:05,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871827057] [2020-07-19 23:50:05,966 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21ff49f No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:50:06,142 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@21ff49f issued 4 check-sat command(s) [2020-07-19 23:50:06,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:50:06,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 1162 conjuncts, 99 conjunts are in the unsatisfiable core [2020-07-19 23:50:06,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:50:06,183 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:50:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 31635 backedges. 190 proven. 13585 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2020-07-19 23:50:06,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:50:06,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 102 [2020-07-19 23:50:06,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733279901] [2020-07-19 23:50:06,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 102 states [2020-07-19 23:50:06,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:50:06,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2020-07-19 23:50:06,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4763, Invalid=5539, Unknown=0, NotChecked=0, Total=10302 [2020-07-19 23:50:06,556 INFO L87 Difference]: Start difference. First operand 678 states and 678 transitions. Second operand 102 states. [2020-07-19 23:50:09,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:50:09,295 INFO L93 Difference]: Finished difference Result 688 states and 688 transitions. [2020-07-19 23:50:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2020-07-19 23:50:09,296 INFO L78 Accepts]: Start accepts. Automaton has 102 states. Word has length 675 [2020-07-19 23:50:09,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:50:09,298 INFO L225 Difference]: With dead ends: 688 [2020-07-19 23:50:09,299 INFO L226 Difference]: Without dead ends: 686 [2020-07-19 23:50:09,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 967 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=4769, Invalid=5737, Unknown=0, NotChecked=0, Total=10506 [2020-07-19 23:50:09,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2020-07-19 23:50:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 685. [2020-07-19 23:50:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-07-19 23:50:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 685 transitions. [2020-07-19 23:50:09,308 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 685 transitions. Word has length 675 [2020-07-19 23:50:09,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:50:09,309 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 685 transitions. [2020-07-19 23:50:09,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 102 states. [2020-07-19 23:50:09,309 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 685 transitions. [2020-07-19 23:50:09,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2020-07-19 23:50:09,313 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:50:09,313 INFO L422 BasicCegarLoop]: trace histogram [97, 97, 97, 96, 96, 96, 96, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:50:09,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:50:09,514 INFO L427 AbstractCegarLoop]: === Iteration 97 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:50:09,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:50:09,515 INFO L82 PathProgramCache]: Analyzing trace with hash 2061063349, now seen corresponding path program 96 times [2020-07-19 23:50:09,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:50:09,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111553466] [2020-07-19 23:50:09,516 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:50:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:16,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 32304 backedges. 192 proven. 13872 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2020-07-19 23:50:17,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111553466] [2020-07-19 23:50:17,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722054811] [2020-07-19 23:50:17,365 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5160412a 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 [2020-07-19 23:50:17,542 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5160412a issued 4 check-sat command(s) [2020-07-19 23:50:17,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:50:17,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 100 conjunts are in the unsatisfiable core [2020-07-19 23:50:17,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:50:17,572 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:50:17,929 INFO L134 CoverageAnalysis]: Checked inductivity of 32304 backedges. 192 proven. 13872 refuted. 0 times theorem prover too weak. 18240 trivial. 0 not checked. [2020-07-19 23:50:17,929 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:50:17,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101] total 103 [2020-07-19 23:50:17,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132571717] [2020-07-19 23:50:17,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 103 states [2020-07-19 23:50:17,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:50:17,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2020-07-19 23:50:17,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4861, Invalid=5645, Unknown=0, NotChecked=0, Total=10506 [2020-07-19 23:50:17,931 INFO L87 Difference]: Start difference. First operand 685 states and 685 transitions. Second operand 103 states. [2020-07-19 23:50:20,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:50:20,716 INFO L93 Difference]: Finished difference Result 695 states and 695 transitions. [2020-07-19 23:50:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2020-07-19 23:50:20,717 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 682 [2020-07-19 23:50:20,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:50:20,719 INFO L225 Difference]: With dead ends: 695 [2020-07-19 23:50:20,719 INFO L226 Difference]: Without dead ends: 693 [2020-07-19 23:50:20,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 977 GetRequests, 875 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=4867, Invalid=5845, Unknown=0, NotChecked=0, Total=10712 [2020-07-19 23:50:20,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-07-19 23:50:20,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2020-07-19 23:50:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-07-19 23:50:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 692 transitions. [2020-07-19 23:50:20,732 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 692 transitions. Word has length 682 [2020-07-19 23:50:20,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:50:20,733 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 692 transitions. [2020-07-19 23:50:20,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 103 states. [2020-07-19 23:50:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 692 transitions. [2020-07-19 23:50:20,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 690 [2020-07-19 23:50:20,738 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:50:20,739 INFO L422 BasicCegarLoop]: trace histogram [98, 98, 98, 97, 97, 97, 97, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:50:20,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2020-07-19 23:50:20,953 INFO L427 AbstractCegarLoop]: === Iteration 98 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:50:20,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:50:20,953 INFO L82 PathProgramCache]: Analyzing trace with hash 93788424, now seen corresponding path program 97 times [2020-07-19 23:50:20,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:50:20,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876838413] [2020-07-19 23:50:20,954 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:50:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:28,844 INFO L134 CoverageAnalysis]: Checked inductivity of 32980 backedges. 194 proven. 14162 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2020-07-19 23:50:28,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876838413] [2020-07-19 23:50:28,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444557771] [2020-07-19 23:50:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7537063a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:50:29,021 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7537063a issued 4 check-sat command(s) [2020-07-19 23:50:29,022 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:50:29,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 101 conjunts are in the unsatisfiable core [2020-07-19 23:50:29,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:50:29,052 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:50:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 32980 backedges. 194 proven. 14162 refuted. 0 times theorem prover too weak. 18624 trivial. 0 not checked. [2020-07-19 23:50:29,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:50:29,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 104 [2020-07-19 23:50:29,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172733115] [2020-07-19 23:50:29,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 104 states [2020-07-19 23:50:29,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:50:29,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2020-07-19 23:50:29,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=4960, Invalid=5752, Unknown=0, NotChecked=0, Total=10712 [2020-07-19 23:50:29,432 INFO L87 Difference]: Start difference. First operand 692 states and 692 transitions. Second operand 104 states. [2020-07-19 23:50:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:50:32,231 INFO L93 Difference]: Finished difference Result 702 states and 702 transitions. [2020-07-19 23:50:32,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2020-07-19 23:50:32,232 INFO L78 Accepts]: Start accepts. Automaton has 104 states. Word has length 689 [2020-07-19 23:50:32,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:50:32,234 INFO L225 Difference]: With dead ends: 702 [2020-07-19 23:50:32,235 INFO L226 Difference]: Without dead ends: 700 [2020-07-19 23:50:32,236 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 987 GetRequests, 884 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=4966, Invalid=5954, Unknown=0, NotChecked=0, Total=10920 [2020-07-19 23:50:32,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-07-19 23:50:32,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 699. [2020-07-19 23:50:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-19 23:50:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 699 transitions. [2020-07-19 23:50:32,245 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 699 transitions. Word has length 689 [2020-07-19 23:50:32,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:50:32,246 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 699 transitions. [2020-07-19 23:50:32,246 INFO L480 AbstractCegarLoop]: Interpolant automaton has 104 states. [2020-07-19 23:50:32,246 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 699 transitions. [2020-07-19 23:50:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2020-07-19 23:50:32,250 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:50:32,250 INFO L422 BasicCegarLoop]: trace histogram [99, 99, 99, 98, 98, 98, 98, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:50:32,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,98 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:50:32,451 INFO L427 AbstractCegarLoop]: === Iteration 99 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:50:32,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:50:32,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1888903509, now seen corresponding path program 98 times [2020-07-19 23:50:32,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:50:32,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254788163] [2020-07-19 23:50:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:50:32,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 33663 backedges. 196 proven. 14455 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2020-07-19 23:50:40,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254788163] [2020-07-19 23:50:40,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002602138] [2020-07-19 23:50:40,602 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d3f4c03 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 [2020-07-19 23:50:40,781 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4d3f4c03 issued 4 check-sat command(s) [2020-07-19 23:50:40,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:50:40,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1198 conjuncts, 102 conjunts are in the unsatisfiable core [2020-07-19 23:50:40,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:50:40,812 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:50:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 33663 backedges. 196 proven. 14455 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2020-07-19 23:50:41,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:50:41,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103] total 105 [2020-07-19 23:50:41,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798939716] [2020-07-19 23:50:41,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 105 states [2020-07-19 23:50:41,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:50:41,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2020-07-19 23:50:41,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5060, Invalid=5860, Unknown=0, NotChecked=0, Total=10920 [2020-07-19 23:50:41,181 INFO L87 Difference]: Start difference. First operand 699 states and 699 transitions. Second operand 105 states. [2020-07-19 23:50:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:50:43,850 INFO L93 Difference]: Finished difference Result 709 states and 709 transitions. [2020-07-19 23:50:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2020-07-19 23:50:43,851 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 696 [2020-07-19 23:50:43,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:50:43,855 INFO L225 Difference]: With dead ends: 709 [2020-07-19 23:50:43,855 INFO L226 Difference]: Without dead ends: 707 [2020-07-19 23:50:43,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 997 GetRequests, 893 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=5066, Invalid=6064, Unknown=0, NotChecked=0, Total=11130 [2020-07-19 23:50:43,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-07-19 23:50:43,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 706. [2020-07-19 23:50:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-07-19 23:50:43,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 706 transitions. [2020-07-19 23:50:43,867 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 706 transitions. Word has length 696 [2020-07-19 23:50:43,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:50:43,867 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 706 transitions. [2020-07-19 23:50:43,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 105 states. [2020-07-19 23:50:43,867 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 706 transitions. [2020-07-19 23:50:43,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2020-07-19 23:50:43,896 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:50:43,896 INFO L422 BasicCegarLoop]: trace histogram [100, 100, 100, 99, 99, 99, 99, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:50:44,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:50:44,097 INFO L427 AbstractCegarLoop]: === Iteration 100 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:50:44,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:50:44,098 INFO L82 PathProgramCache]: Analyzing trace with hash 202414184, now seen corresponding path program 99 times [2020-07-19 23:50:44,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:50:44,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31056294] [2020-07-19 23:50:44,099 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:50:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:50:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 34353 backedges. 198 proven. 14751 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2020-07-19 23:50:52,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31056294] [2020-07-19 23:50:52,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682042814] [2020-07-19 23:50:52,505 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bba4882 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:50:52,685 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6bba4882 issued 4 check-sat command(s) [2020-07-19 23:50:52,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:50:52,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 103 conjunts are in the unsatisfiable core [2020-07-19 23:50:52,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:50:52,718 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:50:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 34353 backedges. 198 proven. 14751 refuted. 0 times theorem prover too weak. 19404 trivial. 0 not checked. [2020-07-19 23:50:53,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:50:53,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104] total 106 [2020-07-19 23:50:53,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525431429] [2020-07-19 23:50:53,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 106 states [2020-07-19 23:50:53,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:50:53,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 106 interpolants. [2020-07-19 23:50:53,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5161, Invalid=5969, Unknown=0, NotChecked=0, Total=11130 [2020-07-19 23:50:53,116 INFO L87 Difference]: Start difference. First operand 706 states and 706 transitions. Second operand 106 states. [2020-07-19 23:50:55,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:50:55,935 INFO L93 Difference]: Finished difference Result 716 states and 716 transitions. [2020-07-19 23:50:55,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2020-07-19 23:50:55,937 INFO L78 Accepts]: Start accepts. Automaton has 106 states. Word has length 703 [2020-07-19 23:50:55,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:50:55,940 INFO L225 Difference]: With dead ends: 716 [2020-07-19 23:50:55,940 INFO L226 Difference]: Without dead ends: 714 [2020-07-19 23:50:55,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=5167, Invalid=6175, Unknown=0, NotChecked=0, Total=11342 [2020-07-19 23:50:55,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-07-19 23:50:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 713. [2020-07-19 23:50:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2020-07-19 23:50:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 713 transitions. [2020-07-19 23:50:55,953 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 713 transitions. Word has length 703 [2020-07-19 23:50:55,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:50:55,954 INFO L479 AbstractCegarLoop]: Abstraction has 713 states and 713 transitions. [2020-07-19 23:50:55,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 106 states. [2020-07-19 23:50:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 713 transitions. [2020-07-19 23:50:55,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2020-07-19 23:50:55,960 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:50:55,961 INFO L422 BasicCegarLoop]: trace histogram [101, 101, 101, 100, 100, 100, 100, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:50:56,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2020-07-19 23:50:56,177 INFO L427 AbstractCegarLoop]: === Iteration 101 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:50:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:50:56,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1984899595, now seen corresponding path program 100 times [2020-07-19 23:50:56,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:50:56,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432620380] [2020-07-19 23:50:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:50:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 35050 backedges. 200 proven. 15050 refuted. 0 times theorem prover too weak. 19800 trivial. 0 not checked. [2020-07-19 23:51:05,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432620380] [2020-07-19 23:51:05,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192133605] [2020-07-19 23:51:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e83546 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 [2020-07-19 23:51:05,314 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e83546 issued 4 check-sat command(s) [2020-07-19 23:51:05,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:51:05,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 104 conjunts are in the unsatisfiable core [2020-07-19 23:51:05,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:51:05,345 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:51:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 35050 backedges. 200 proven. 15050 refuted. 0 times theorem prover too weak. 19800 trivial. 0 not checked. [2020-07-19 23:51:05,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:51:05,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 105] total 107 [2020-07-19 23:51:05,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068041855] [2020-07-19 23:51:05,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 107 states [2020-07-19 23:51:05,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:51:05,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2020-07-19 23:51:05,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5263, Invalid=6079, Unknown=0, NotChecked=0, Total=11342 [2020-07-19 23:51:05,732 INFO L87 Difference]: Start difference. First operand 713 states and 713 transitions. Second operand 107 states. [2020-07-19 23:51:09,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:51:09,076 INFO L93 Difference]: Finished difference Result 723 states and 723 transitions. [2020-07-19 23:51:09,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2020-07-19 23:51:09,077 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 710 [2020-07-19 23:51:09,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:51:09,079 INFO L225 Difference]: With dead ends: 723 [2020-07-19 23:51:09,079 INFO L226 Difference]: Without dead ends: 721 [2020-07-19 23:51:09,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1017 GetRequests, 911 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=5269, Invalid=6287, Unknown=0, NotChecked=0, Total=11556 [2020-07-19 23:51:09,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-07-19 23:51:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 720. [2020-07-19 23:51:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-07-19 23:51:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 720 transitions. [2020-07-19 23:51:09,090 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 720 transitions. Word has length 710 [2020-07-19 23:51:09,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:51:09,091 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 720 transitions. [2020-07-19 23:51:09,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 107 states. [2020-07-19 23:51:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 720 transitions. [2020-07-19 23:51:09,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2020-07-19 23:51:09,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:51:09,097 INFO L422 BasicCegarLoop]: trace histogram [102, 102, 102, 101, 101, 101, 101, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:51:09,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2020-07-19 23:51:09,297 INFO L427 AbstractCegarLoop]: === Iteration 102 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:51:09,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:51:09,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1455927240, now seen corresponding path program 101 times [2020-07-19 23:51:09,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:51:09,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882294189] [2020-07-19 23:51:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:51:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 35754 backedges. 202 proven. 15352 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2020-07-19 23:51:18,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882294189] [2020-07-19 23:51:18,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454148540] [2020-07-19 23:51:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@c973019 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:51:18,573 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@c973019 issued 4 check-sat command(s) [2020-07-19 23:51:18,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:51:18,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 105 conjunts are in the unsatisfiable core [2020-07-19 23:51:18,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:51:18,608 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:51:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 35754 backedges. 202 proven. 15352 refuted. 0 times theorem prover too weak. 20200 trivial. 0 not checked. [2020-07-19 23:51:19,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:51:19,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106] total 108 [2020-07-19 23:51:19,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961186737] [2020-07-19 23:51:19,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 108 states [2020-07-19 23:51:19,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:51:19,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2020-07-19 23:51:19,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5366, Invalid=6190, Unknown=0, NotChecked=0, Total=11556 [2020-07-19 23:51:19,028 INFO L87 Difference]: Start difference. First operand 720 states and 720 transitions. Second operand 108 states. [2020-07-19 23:51:22,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:51:22,035 INFO L93 Difference]: Finished difference Result 730 states and 730 transitions. [2020-07-19 23:51:22,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2020-07-19 23:51:22,036 INFO L78 Accepts]: Start accepts. Automaton has 108 states. Word has length 717 [2020-07-19 23:51:22,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:51:22,039 INFO L225 Difference]: With dead ends: 730 [2020-07-19 23:51:22,039 INFO L226 Difference]: Without dead ends: 728 [2020-07-19 23:51:22,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1027 GetRequests, 920 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=5372, Invalid=6400, Unknown=0, NotChecked=0, Total=11772 [2020-07-19 23:51:22,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-07-19 23:51:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 727. [2020-07-19 23:51:22,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-07-19 23:51:22,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 727 transitions. [2020-07-19 23:51:22,052 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 727 transitions. Word has length 717 [2020-07-19 23:51:22,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:51:22,053 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 727 transitions. [2020-07-19 23:51:22,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 108 states. [2020-07-19 23:51:22,053 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 727 transitions. [2020-07-19 23:51:22,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2020-07-19 23:51:22,059 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:51:22,059 INFO L422 BasicCegarLoop]: trace histogram [103, 103, 103, 102, 102, 102, 102, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:51:22,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2020-07-19 23:51:22,272 INFO L427 AbstractCegarLoop]: === Iteration 103 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:51:22,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:51:22,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1116910229, now seen corresponding path program 102 times [2020-07-19 23:51:22,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:51:22,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274952430] [2020-07-19 23:51:22,273 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:51:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 36465 backedges. 204 proven. 15657 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2020-07-19 23:51:31,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274952430] [2020-07-19 23:51:31,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463509309] [2020-07-19 23:51:31,672 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4e007a4 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 [2020-07-19 23:51:31,863 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4e007a4 issued 4 check-sat command(s) [2020-07-19 23:51:31,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:51:31,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 106 conjunts are in the unsatisfiable core [2020-07-19 23:51:31,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:51:31,893 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:51:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 36465 backedges. 204 proven. 15657 refuted. 0 times theorem prover too weak. 20604 trivial. 0 not checked. [2020-07-19 23:51:32,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:51:32,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107] total 109 [2020-07-19 23:51:32,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438613373] [2020-07-19 23:51:32,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 109 states [2020-07-19 23:51:32,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:51:32,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2020-07-19 23:51:32,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5470, Invalid=6302, Unknown=0, NotChecked=0, Total=11772 [2020-07-19 23:51:32,298 INFO L87 Difference]: Start difference. First operand 727 states and 727 transitions. Second operand 109 states. [2020-07-19 23:51:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:51:35,715 INFO L93 Difference]: Finished difference Result 737 states and 737 transitions. [2020-07-19 23:51:35,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2020-07-19 23:51:35,716 INFO L78 Accepts]: Start accepts. Automaton has 109 states. Word has length 724 [2020-07-19 23:51:35,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:51:35,718 INFO L225 Difference]: With dead ends: 737 [2020-07-19 23:51:35,718 INFO L226 Difference]: Without dead ends: 735 [2020-07-19 23:51:35,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1037 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=5476, Invalid=6514, Unknown=0, NotChecked=0, Total=11990 [2020-07-19 23:51:35,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-19 23:51:35,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 734. [2020-07-19 23:51:35,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 734 states. [2020-07-19 23:51:35,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 734 transitions. [2020-07-19 23:51:35,731 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 734 transitions. Word has length 724 [2020-07-19 23:51:35,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:51:35,731 INFO L479 AbstractCegarLoop]: Abstraction has 734 states and 734 transitions. [2020-07-19 23:51:35,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 109 states. [2020-07-19 23:51:35,732 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 734 transitions. [2020-07-19 23:51:35,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-07-19 23:51:35,759 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:51:35,759 INFO L422 BasicCegarLoop]: trace histogram [104, 104, 104, 103, 103, 103, 103, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:51:35,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2020-07-19 23:51:35,974 INFO L427 AbstractCegarLoop]: === Iteration 104 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:51:35,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:51:35,974 INFO L82 PathProgramCache]: Analyzing trace with hash 2115133224, now seen corresponding path program 103 times [2020-07-19 23:51:35,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:51:35,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531144416] [2020-07-19 23:51:35,975 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:51:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 37183 backedges. 206 proven. 15965 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2020-07-19 23:51:45,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531144416] [2020-07-19 23:51:45,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284496926] [2020-07-19 23:51:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@275bfa87 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:51:45,908 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@275bfa87 issued 4 check-sat command(s) [2020-07-19 23:51:45,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:51:45,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 107 conjunts are in the unsatisfiable core [2020-07-19 23:51:45,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:51:45,945 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:51:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 37183 backedges. 206 proven. 15965 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2020-07-19 23:51:46,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:51:46,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108] total 110 [2020-07-19 23:51:46,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276712490] [2020-07-19 23:51:46,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 110 states [2020-07-19 23:51:46,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:51:46,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2020-07-19 23:51:46,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5575, Invalid=6415, Unknown=0, NotChecked=0, Total=11990 [2020-07-19 23:51:46,378 INFO L87 Difference]: Start difference. First operand 734 states and 734 transitions. Second operand 110 states. [2020-07-19 23:51:49,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:51:49,961 INFO L93 Difference]: Finished difference Result 744 states and 744 transitions. [2020-07-19 23:51:49,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2020-07-19 23:51:49,962 INFO L78 Accepts]: Start accepts. Automaton has 110 states. Word has length 731 [2020-07-19 23:51:49,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:51:49,964 INFO L225 Difference]: With dead ends: 744 [2020-07-19 23:51:49,964 INFO L226 Difference]: Without dead ends: 742 [2020-07-19 23:51:49,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1047 GetRequests, 938 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=5581, Invalid=6629, Unknown=0, NotChecked=0, Total=12210 [2020-07-19 23:51:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2020-07-19 23:51:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 741. [2020-07-19 23:51:49,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-07-19 23:51:49,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 741 transitions. [2020-07-19 23:51:49,978 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 741 transitions. Word has length 731 [2020-07-19 23:51:49,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:51:49,978 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 741 transitions. [2020-07-19 23:51:49,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 110 states. [2020-07-19 23:51:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 741 transitions. [2020-07-19 23:51:49,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2020-07-19 23:51:49,985 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:51:49,985 INFO L422 BasicCegarLoop]: trace histogram [105, 105, 105, 104, 104, 104, 104, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:51:50,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2020-07-19 23:51:50,200 INFO L427 AbstractCegarLoop]: === Iteration 105 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:51:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:51:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash 371586869, now seen corresponding path program 104 times [2020-07-19 23:51:50,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:51:50,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77138432] [2020-07-19 23:51:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:51:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:51:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:00,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 37908 backedges. 208 proven. 16276 refuted. 0 times theorem prover too weak. 21424 trivial. 0 not checked. [2020-07-19 23:52:00,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77138432] [2020-07-19 23:52:00,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24767373] [2020-07-19 23:52:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75d14b39 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 [2020-07-19 23:52:00,408 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@75d14b39 issued 4 check-sat command(s) [2020-07-19 23:52:00,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:52:00,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 108 conjunts are in the unsatisfiable core [2020-07-19 23:52:00,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:52:00,443 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:52:00,882 INFO L134 CoverageAnalysis]: Checked inductivity of 37908 backedges. 208 proven. 16276 refuted. 0 times theorem prover too weak. 21424 trivial. 0 not checked. [2020-07-19 23:52:00,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:52:00,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109] total 111 [2020-07-19 23:52:00,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053376807] [2020-07-19 23:52:00,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 111 states [2020-07-19 23:52:00,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:52:00,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2020-07-19 23:52:00,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5681, Invalid=6529, Unknown=0, NotChecked=0, Total=12210 [2020-07-19 23:52:00,885 INFO L87 Difference]: Start difference. First operand 741 states and 741 transitions. Second operand 111 states. [2020-07-19 23:52:04,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:52:04,486 INFO L93 Difference]: Finished difference Result 751 states and 751 transitions. [2020-07-19 23:52:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2020-07-19 23:52:04,488 INFO L78 Accepts]: Start accepts. Automaton has 111 states. Word has length 738 [2020-07-19 23:52:04,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:52:04,489 INFO L225 Difference]: With dead ends: 751 [2020-07-19 23:52:04,490 INFO L226 Difference]: Without dead ends: 749 [2020-07-19 23:52:04,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=5687, Invalid=6745, Unknown=0, NotChecked=0, Total=12432 [2020-07-19 23:52:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-07-19 23:52:04,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 748. [2020-07-19 23:52:04,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2020-07-19 23:52:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 748 transitions. [2020-07-19 23:52:04,499 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 748 transitions. Word has length 738 [2020-07-19 23:52:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:52:04,500 INFO L479 AbstractCegarLoop]: Abstraction has 748 states and 748 transitions. [2020-07-19 23:52:04,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 111 states. [2020-07-19 23:52:04,500 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 748 transitions. [2020-07-19 23:52:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-07-19 23:52:04,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:52:04,504 INFO L422 BasicCegarLoop]: trace histogram [106, 106, 106, 105, 105, 105, 105, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:52:04,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2020-07-19 23:52:04,706 INFO L427 AbstractCegarLoop]: === Iteration 106 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:52:04,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:52:04,707 INFO L82 PathProgramCache]: Analyzing trace with hash -876173688, now seen corresponding path program 105 times [2020-07-19 23:52:04,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:52:04,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21253045] [2020-07-19 23:52:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:52:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:15,383 INFO L134 CoverageAnalysis]: Checked inductivity of 38640 backedges. 210 proven. 16590 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2020-07-19 23:52:15,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21253045] [2020-07-19 23:52:15,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800740046] [2020-07-19 23:52:15,384 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@14279cc6 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:52:15,599 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@14279cc6 issued 4 check-sat command(s) [2020-07-19 23:52:15,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:52:15,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 109 conjunts are in the unsatisfiable core [2020-07-19 23:52:15,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:52:15,629 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:52:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 38640 backedges. 210 proven. 16590 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2020-07-19 23:52:16,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:52:16,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 110] total 112 [2020-07-19 23:52:16,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111311452] [2020-07-19 23:52:16,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 112 states [2020-07-19 23:52:16,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:52:16,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 112 interpolants. [2020-07-19 23:52:16,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5788, Invalid=6644, Unknown=0, NotChecked=0, Total=12432 [2020-07-19 23:52:16,066 INFO L87 Difference]: Start difference. First operand 748 states and 748 transitions. Second operand 112 states. [2020-07-19 23:52:19,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:52:19,724 INFO L93 Difference]: Finished difference Result 758 states and 758 transitions. [2020-07-19 23:52:19,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2020-07-19 23:52:19,725 INFO L78 Accepts]: Start accepts. Automaton has 112 states. Word has length 745 [2020-07-19 23:52:19,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:52:19,727 INFO L225 Difference]: With dead ends: 758 [2020-07-19 23:52:19,727 INFO L226 Difference]: Without dead ends: 756 [2020-07-19 23:52:19,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 956 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=5794, Invalid=6862, Unknown=0, NotChecked=0, Total=12656 [2020-07-19 23:52:19,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2020-07-19 23:52:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 755. [2020-07-19 23:52:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-07-19 23:52:19,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 755 transitions. [2020-07-19 23:52:19,736 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 755 transitions. Word has length 745 [2020-07-19 23:52:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:52:19,737 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 755 transitions. [2020-07-19 23:52:19,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 112 states. [2020-07-19 23:52:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 755 transitions. [2020-07-19 23:52:19,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2020-07-19 23:52:19,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:52:19,741 INFO L422 BasicCegarLoop]: trace histogram [107, 107, 107, 106, 106, 106, 106, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:52:19,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2020-07-19 23:52:19,944 INFO L427 AbstractCegarLoop]: === Iteration 107 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:52:19,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:52:19,945 INFO L82 PathProgramCache]: Analyzing trace with hash 500474837, now seen corresponding path program 106 times [2020-07-19 23:52:19,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:52:19,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427184598] [2020-07-19 23:52:19,946 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:52:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 39379 backedges. 212 proven. 16907 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2020-07-19 23:52:31,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427184598] [2020-07-19 23:52:31,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671718871] [2020-07-19 23:52:31,411 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ef9167c 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 [2020-07-19 23:52:31,604 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5ef9167c issued 4 check-sat command(s) [2020-07-19 23:52:31,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:52:31,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 110 conjunts are in the unsatisfiable core [2020-07-19 23:52:31,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:52:31,634 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:52:32,081 INFO L134 CoverageAnalysis]: Checked inductivity of 39379 backedges. 212 proven. 16907 refuted. 0 times theorem prover too weak. 22260 trivial. 0 not checked. [2020-07-19 23:52:32,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:52:32,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [111, 111] total 113 [2020-07-19 23:52:32,082 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438047386] [2020-07-19 23:52:32,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 113 states [2020-07-19 23:52:32,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:52:32,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2020-07-19 23:52:32,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5896, Invalid=6760, Unknown=0, NotChecked=0, Total=12656 [2020-07-19 23:52:32,083 INFO L87 Difference]: Start difference. First operand 755 states and 755 transitions. Second operand 113 states. [2020-07-19 23:52:35,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:52:35,537 INFO L93 Difference]: Finished difference Result 765 states and 765 transitions. [2020-07-19 23:52:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2020-07-19 23:52:35,539 INFO L78 Accepts]: Start accepts. Automaton has 113 states. Word has length 752 [2020-07-19 23:52:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:52:35,543 INFO L225 Difference]: With dead ends: 765 [2020-07-19 23:52:35,543 INFO L226 Difference]: Without dead ends: 763 [2020-07-19 23:52:35,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=5902, Invalid=6980, Unknown=0, NotChecked=0, Total=12882 [2020-07-19 23:52:35,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2020-07-19 23:52:35,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 762. [2020-07-19 23:52:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2020-07-19 23:52:35,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 762 transitions. [2020-07-19 23:52:35,559 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 762 transitions. Word has length 752 [2020-07-19 23:52:35,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:52:35,559 INFO L479 AbstractCegarLoop]: Abstraction has 762 states and 762 transitions. [2020-07-19 23:52:35,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 113 states. [2020-07-19 23:52:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 762 transitions. [2020-07-19 23:52:35,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2020-07-19 23:52:35,567 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:52:35,567 INFO L422 BasicCegarLoop]: trace histogram [108, 108, 108, 107, 107, 107, 107, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:52:35,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:52:35,783 INFO L427 AbstractCegarLoop]: === Iteration 108 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:52:35,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:52:35,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1690663448, now seen corresponding path program 107 times [2020-07-19 23:52:35,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:52:35,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849507994] [2020-07-19 23:52:35,784 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:52:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:52:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 40125 backedges. 214 proven. 17227 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2020-07-19 23:52:47,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849507994] [2020-07-19 23:52:47,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062064211] [2020-07-19 23:52:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@35f4f4ff No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:52:47,274 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@35f4f4ff issued 4 check-sat command(s) [2020-07-19 23:52:47,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:52:47,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 111 conjunts are in the unsatisfiable core [2020-07-19 23:52:47,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:52:47,304 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:52:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 40125 backedges. 214 proven. 17227 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2020-07-19 23:52:47,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:52:47,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112] total 114 [2020-07-19 23:52:47,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419871686] [2020-07-19 23:52:47,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 114 states [2020-07-19 23:52:47,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:52:47,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2020-07-19 23:52:47,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6005, Invalid=6877, Unknown=0, NotChecked=0, Total=12882 [2020-07-19 23:52:47,756 INFO L87 Difference]: Start difference. First operand 762 states and 762 transitions. Second operand 114 states. [2020-07-19 23:52:50,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:52:50,939 INFO L93 Difference]: Finished difference Result 772 states and 772 transitions. [2020-07-19 23:52:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2020-07-19 23:52:50,940 INFO L78 Accepts]: Start accepts. Automaton has 114 states. Word has length 759 [2020-07-19 23:52:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:52:50,942 INFO L225 Difference]: With dead ends: 772 [2020-07-19 23:52:50,942 INFO L226 Difference]: Without dead ends: 770 [2020-07-19 23:52:50,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1087 GetRequests, 974 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=6011, Invalid=7099, Unknown=0, NotChecked=0, Total=13110 [2020-07-19 23:52:50,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-07-19 23:52:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 769. [2020-07-19 23:52:50,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2020-07-19 23:52:50,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 769 transitions. [2020-07-19 23:52:50,952 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 769 transitions. Word has length 759 [2020-07-19 23:52:50,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:52:50,953 INFO L479 AbstractCegarLoop]: Abstraction has 769 states and 769 transitions. [2020-07-19 23:52:50,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 114 states. [2020-07-19 23:52:50,953 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 769 transitions. [2020-07-19 23:52:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2020-07-19 23:52:50,957 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:52:50,958 INFO L422 BasicCegarLoop]: trace histogram [109, 109, 109, 108, 108, 108, 108, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:52:51,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2020-07-19 23:52:51,159 INFO L427 AbstractCegarLoop]: === Iteration 109 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:52:51,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:52:51,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1316439947, now seen corresponding path program 108 times [2020-07-19 23:52:51,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:52:51,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454776728] [2020-07-19 23:52:51,160 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:52:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 40878 backedges. 216 proven. 17550 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2020-07-19 23:53:02,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454776728] [2020-07-19 23:53:02,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342621791] [2020-07-19 23:53:02,656 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@18d2f6a0 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 [2020-07-19 23:53:02,855 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@18d2f6a0 issued 4 check-sat command(s) [2020-07-19 23:53:02,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:53:02,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1318 conjuncts, 112 conjunts are in the unsatisfiable core [2020-07-19 23:53:02,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:53:02,886 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:53:03,340 INFO L134 CoverageAnalysis]: Checked inductivity of 40878 backedges. 216 proven. 17550 refuted. 0 times theorem prover too weak. 23112 trivial. 0 not checked. [2020-07-19 23:53:03,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:53:03,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113] total 115 [2020-07-19 23:53:03,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163523009] [2020-07-19 23:53:03,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 115 states [2020-07-19 23:53:03,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:53:03,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2020-07-19 23:53:03,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6115, Invalid=6995, Unknown=0, NotChecked=0, Total=13110 [2020-07-19 23:53:03,342 INFO L87 Difference]: Start difference. First operand 769 states and 769 transitions. Second operand 115 states. [2020-07-19 23:53:06,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:53:06,600 INFO L93 Difference]: Finished difference Result 779 states and 779 transitions. [2020-07-19 23:53:06,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2020-07-19 23:53:06,601 INFO L78 Accepts]: Start accepts. Automaton has 115 states. Word has length 766 [2020-07-19 23:53:06,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:53:06,604 INFO L225 Difference]: With dead ends: 779 [2020-07-19 23:53:06,604 INFO L226 Difference]: Without dead ends: 777 [2020-07-19 23:53:06,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1097 GetRequests, 983 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=6121, Invalid=7219, Unknown=0, NotChecked=0, Total=13340 [2020-07-19 23:53:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-07-19 23:53:06,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 776. [2020-07-19 23:53:06,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-07-19 23:53:06,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 776 transitions. [2020-07-19 23:53:06,618 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 776 transitions. Word has length 766 [2020-07-19 23:53:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:53:06,618 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 776 transitions. [2020-07-19 23:53:06,618 INFO L480 AbstractCegarLoop]: Interpolant automaton has 115 states. [2020-07-19 23:53:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 776 transitions. [2020-07-19 23:53:06,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2020-07-19 23:53:06,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:53:06,626 INFO L422 BasicCegarLoop]: trace histogram [110, 110, 110, 109, 109, 109, 109, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:53:06,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:53:06,839 INFO L427 AbstractCegarLoop]: === Iteration 110 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:53:06,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:53:06,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1186726584, now seen corresponding path program 109 times [2020-07-19 23:53:06,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:53:06,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748726970] [2020-07-19 23:53:06,839 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:53:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 41638 backedges. 218 proven. 17876 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2020-07-19 23:53:18,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748726970] [2020-07-19 23:53:18,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331043273] [2020-07-19 23:53:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@66279f16 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:53:18,978 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@66279f16 issued 4 check-sat command(s) [2020-07-19 23:53:18,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:53:18,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 113 conjunts are in the unsatisfiable core [2020-07-19 23:53:18,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:53:19,009 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:53:19,473 INFO L134 CoverageAnalysis]: Checked inductivity of 41638 backedges. 218 proven. 17876 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2020-07-19 23:53:19,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:53:19,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 114] total 116 [2020-07-19 23:53:19,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525516642] [2020-07-19 23:53:19,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 116 states [2020-07-19 23:53:19,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:53:19,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2020-07-19 23:53:19,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6226, Invalid=7114, Unknown=0, NotChecked=0, Total=13340 [2020-07-19 23:53:19,475 INFO L87 Difference]: Start difference. First operand 776 states and 776 transitions. Second operand 116 states. [2020-07-19 23:53:22,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:53:22,641 INFO L93 Difference]: Finished difference Result 786 states and 786 transitions. [2020-07-19 23:53:22,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2020-07-19 23:53:22,643 INFO L78 Accepts]: Start accepts. Automaton has 116 states. Word has length 773 [2020-07-19 23:53:22,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:53:22,645 INFO L225 Difference]: With dead ends: 786 [2020-07-19 23:53:22,645 INFO L226 Difference]: Without dead ends: 784 [2020-07-19 23:53:22,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1107 GetRequests, 992 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=6232, Invalid=7340, Unknown=0, NotChecked=0, Total=13572 [2020-07-19 23:53:22,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-07-19 23:53:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 783. [2020-07-19 23:53:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-07-19 23:53:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 783 transitions. [2020-07-19 23:53:22,654 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 783 transitions. Word has length 773 [2020-07-19 23:53:22,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:53:22,655 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 783 transitions. [2020-07-19 23:53:22,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 116 states. [2020-07-19 23:53:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 783 transitions. [2020-07-19 23:53:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 781 [2020-07-19 23:53:22,659 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:53:22,660 INFO L422 BasicCegarLoop]: trace histogram [111, 111, 111, 110, 110, 110, 110, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:53:22,860 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2020-07-19 23:53:22,860 INFO L427 AbstractCegarLoop]: === Iteration 111 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:53:22,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:53:22,861 INFO L82 PathProgramCache]: Analyzing trace with hash 128726293, now seen corresponding path program 110 times [2020-07-19 23:53:22,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:53:22,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86108748] [2020-07-19 23:53:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:53:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 42405 backedges. 220 proven. 18205 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2020-07-19 23:53:35,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86108748] [2020-07-19 23:53:35,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711059190] [2020-07-19 23:53:35,214 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@604776d4 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 [2020-07-19 23:53:35,429 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@604776d4 issued 4 check-sat command(s) [2020-07-19 23:53:35,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:53:35,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 114 conjunts are in the unsatisfiable core [2020-07-19 23:53:35,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:53:35,475 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:53:35,961 INFO L134 CoverageAnalysis]: Checked inductivity of 42405 backedges. 220 proven. 18205 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2020-07-19 23:53:35,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:53:35,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 115] total 117 [2020-07-19 23:53:35,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717019813] [2020-07-19 23:53:35,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 117 states [2020-07-19 23:53:35,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:53:35,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2020-07-19 23:53:35,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6338, Invalid=7234, Unknown=0, NotChecked=0, Total=13572 [2020-07-19 23:53:35,964 INFO L87 Difference]: Start difference. First operand 783 states and 783 transitions. Second operand 117 states. [2020-07-19 23:53:39,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:53:39,267 INFO L93 Difference]: Finished difference Result 793 states and 793 transitions. [2020-07-19 23:53:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2020-07-19 23:53:39,268 INFO L78 Accepts]: Start accepts. Automaton has 117 states. Word has length 780 [2020-07-19 23:53:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:53:39,271 INFO L225 Difference]: With dead ends: 793 [2020-07-19 23:53:39,272 INFO L226 Difference]: Without dead ends: 791 [2020-07-19 23:53:39,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1117 GetRequests, 1001 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=6344, Invalid=7462, Unknown=0, NotChecked=0, Total=13806 [2020-07-19 23:53:39,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-07-19 23:53:39,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 790. [2020-07-19 23:53:39,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2020-07-19 23:53:39,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 790 transitions. [2020-07-19 23:53:39,284 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 790 transitions. Word has length 780 [2020-07-19 23:53:39,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:53:39,285 INFO L479 AbstractCegarLoop]: Abstraction has 790 states and 790 transitions. [2020-07-19 23:53:39,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 117 states. [2020-07-19 23:53:39,285 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 790 transitions. [2020-07-19 23:53:39,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2020-07-19 23:53:39,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:53:39,292 INFO L422 BasicCegarLoop]: trace histogram [112, 112, 112, 111, 111, 111, 111, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:53:39,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,111 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:53:39,508 INFO L427 AbstractCegarLoop]: === Iteration 112 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:53:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:53:39,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1002894168, now seen corresponding path program 111 times [2020-07-19 23:53:39,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:53:39,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558548173] [2020-07-19 23:53:39,508 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:53:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:53:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 43179 backedges. 222 proven. 18537 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2020-07-19 23:53:52,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558548173] [2020-07-19 23:53:52,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119040785] [2020-07-19 23:53:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@c479337 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:53:52,507 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@c479337 issued 4 check-sat command(s) [2020-07-19 23:53:52,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:53:52,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1354 conjuncts, 115 conjunts are in the unsatisfiable core [2020-07-19 23:53:52,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:53:52,540 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:53:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 43179 backedges. 222 proven. 18537 refuted. 0 times theorem prover too weak. 24420 trivial. 0 not checked. [2020-07-19 23:53:53,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:53:53,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 116] total 118 [2020-07-19 23:53:53,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819598501] [2020-07-19 23:53:53,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 118 states [2020-07-19 23:53:53,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:53:53,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2020-07-19 23:53:53,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6451, Invalid=7355, Unknown=0, NotChecked=0, Total=13806 [2020-07-19 23:53:53,033 INFO L87 Difference]: Start difference. First operand 790 states and 790 transitions. Second operand 118 states. [2020-07-19 23:53:56,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:53:56,630 INFO L93 Difference]: Finished difference Result 800 states and 800 transitions. [2020-07-19 23:53:56,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2020-07-19 23:53:56,632 INFO L78 Accepts]: Start accepts. Automaton has 118 states. Word has length 787 [2020-07-19 23:53:56,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:53:56,635 INFO L225 Difference]: With dead ends: 800 [2020-07-19 23:53:56,635 INFO L226 Difference]: Without dead ends: 798 [2020-07-19 23:53:56,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1127 GetRequests, 1010 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=6457, Invalid=7585, Unknown=0, NotChecked=0, Total=14042 [2020-07-19 23:53:56,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2020-07-19 23:53:56,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 797. [2020-07-19 23:53:56,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 797 states. [2020-07-19 23:53:56,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 797 transitions. [2020-07-19 23:53:56,648 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 797 transitions. Word has length 787 [2020-07-19 23:53:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:53:56,648 INFO L479 AbstractCegarLoop]: Abstraction has 797 states and 797 transitions. [2020-07-19 23:53:56,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 118 states. [2020-07-19 23:53:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 797 transitions. [2020-07-19 23:53:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2020-07-19 23:53:56,654 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:53:56,654 INFO L422 BasicCegarLoop]: trace histogram [113, 113, 113, 112, 112, 112, 112, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:53:56,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2020-07-19 23:53:56,855 INFO L427 AbstractCegarLoop]: === Iteration 113 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:53:56,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:53:56,855 INFO L82 PathProgramCache]: Analyzing trace with hash -718726731, now seen corresponding path program 112 times [2020-07-19 23:53:56,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:53:56,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514106607] [2020-07-19 23:53:56,856 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:53:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 43960 backedges. 224 proven. 18872 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2020-07-19 23:54:10,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514106607] [2020-07-19 23:54:10,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556558899] [2020-07-19 23:54:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@420a9c2d 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 [2020-07-19 23:54:10,555 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@420a9c2d issued 4 check-sat command(s) [2020-07-19 23:54:10,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:54:10,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1366 conjuncts, 116 conjunts are in the unsatisfiable core [2020-07-19 23:54:10,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:54:10,587 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:54:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 43960 backedges. 224 proven. 18872 refuted. 0 times theorem prover too weak. 24864 trivial. 0 not checked. [2020-07-19 23:54:11,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:54:11,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [117, 117] total 119 [2020-07-19 23:54:11,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254665507] [2020-07-19 23:54:11,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 119 states [2020-07-19 23:54:11,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:54:11,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2020-07-19 23:54:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6565, Invalid=7477, Unknown=0, NotChecked=0, Total=14042 [2020-07-19 23:54:11,099 INFO L87 Difference]: Start difference. First operand 797 states and 797 transitions. Second operand 119 states. [2020-07-19 23:54:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:54:14,664 INFO L93 Difference]: Finished difference Result 807 states and 807 transitions. [2020-07-19 23:54:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2020-07-19 23:54:14,665 INFO L78 Accepts]: Start accepts. Automaton has 119 states. Word has length 794 [2020-07-19 23:54:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:54:14,668 INFO L225 Difference]: With dead ends: 807 [2020-07-19 23:54:14,668 INFO L226 Difference]: Without dead ends: 805 [2020-07-19 23:54:14,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1137 GetRequests, 1019 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=6571, Invalid=7709, Unknown=0, NotChecked=0, Total=14280 [2020-07-19 23:54:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2020-07-19 23:54:14,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 804. [2020-07-19 23:54:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2020-07-19 23:54:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 804 transitions. [2020-07-19 23:54:14,681 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 804 transitions. Word has length 794 [2020-07-19 23:54:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:54:14,682 INFO L479 AbstractCegarLoop]: Abstraction has 804 states and 804 transitions. [2020-07-19 23:54:14,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 119 states. [2020-07-19 23:54:14,682 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 804 transitions. [2020-07-19 23:54:14,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2020-07-19 23:54:14,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:54:14,688 INFO L422 BasicCegarLoop]: trace histogram [114, 114, 114, 113, 113, 113, 113, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:54:14,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2020-07-19 23:54:14,889 INFO L427 AbstractCegarLoop]: === Iteration 114 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:54:14,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:54:14,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1947225080, now seen corresponding path program 113 times [2020-07-19 23:54:14,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:54:14,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084483923] [2020-07-19 23:54:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:54:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 44748 backedges. 226 proven. 19210 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2020-07-19 23:54:29,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084483923] [2020-07-19 23:54:29,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266691565] [2020-07-19 23:54:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@29575767 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:54:29,264 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@29575767 issued 4 check-sat command(s) [2020-07-19 23:54:29,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:54:29,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 117 conjunts are in the unsatisfiable core [2020-07-19 23:54:29,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:54:29,296 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:54:29,818 INFO L134 CoverageAnalysis]: Checked inductivity of 44748 backedges. 226 proven. 19210 refuted. 0 times theorem prover too weak. 25312 trivial. 0 not checked. [2020-07-19 23:54:29,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:54:29,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118] total 120 [2020-07-19 23:54:29,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450648369] [2020-07-19 23:54:29,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 120 states [2020-07-19 23:54:29,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:54:29,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 120 interpolants. [2020-07-19 23:54:29,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6680, Invalid=7600, Unknown=0, NotChecked=0, Total=14280 [2020-07-19 23:54:29,822 INFO L87 Difference]: Start difference. First operand 804 states and 804 transitions. Second operand 120 states. [2020-07-19 23:54:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:54:34,000 INFO L93 Difference]: Finished difference Result 814 states and 814 transitions. [2020-07-19 23:54:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2020-07-19 23:54:34,001 INFO L78 Accepts]: Start accepts. Automaton has 120 states. Word has length 801 [2020-07-19 23:54:34,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:54:34,003 INFO L225 Difference]: With dead ends: 814 [2020-07-19 23:54:34,003 INFO L226 Difference]: Without dead ends: 812 [2020-07-19 23:54:34,004 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1028 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=6686, Invalid=7834, Unknown=0, NotChecked=0, Total=14520 [2020-07-19 23:54:34,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-07-19 23:54:34,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 811. [2020-07-19 23:54:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2020-07-19 23:54:34,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 811 transitions. [2020-07-19 23:54:34,014 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 811 transitions. Word has length 801 [2020-07-19 23:54:34,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:54:34,014 INFO L479 AbstractCegarLoop]: Abstraction has 811 states and 811 transitions. [2020-07-19 23:54:34,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 120 states. [2020-07-19 23:54:34,015 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 811 transitions. [2020-07-19 23:54:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2020-07-19 23:54:34,019 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:54:34,019 INFO L422 BasicCegarLoop]: trace histogram [115, 115, 115, 114, 114, 114, 114, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:54:34,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2020-07-19 23:54:34,220 INFO L427 AbstractCegarLoop]: === Iteration 115 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:54:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:54:34,221 INFO L82 PathProgramCache]: Analyzing trace with hash -311859627, now seen corresponding path program 114 times [2020-07-19 23:54:34,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:54:34,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725869831] [2020-07-19 23:54:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:54:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:54:48,650 INFO L134 CoverageAnalysis]: Checked inductivity of 45543 backedges. 228 proven. 19551 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2020-07-19 23:54:48,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725869831] [2020-07-19 23:54:48,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744969176] [2020-07-19 23:54:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@163c146 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 [2020-07-19 23:54:48,860 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@163c146 issued 4 check-sat command(s) [2020-07-19 23:54:48,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:54:48,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 118 conjunts are in the unsatisfiable core [2020-07-19 23:54:48,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:54:48,896 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:54:49,427 INFO L134 CoverageAnalysis]: Checked inductivity of 45543 backedges. 228 proven. 19551 refuted. 0 times theorem prover too weak. 25764 trivial. 0 not checked. [2020-07-19 23:54:49,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:54:49,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 119] total 121 [2020-07-19 23:54:49,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403955617] [2020-07-19 23:54:49,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 121 states [2020-07-19 23:54:49,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:54:49,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2020-07-19 23:54:49,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6796, Invalid=7724, Unknown=0, NotChecked=0, Total=14520 [2020-07-19 23:54:49,430 INFO L87 Difference]: Start difference. First operand 811 states and 811 transitions. Second operand 121 states. [2020-07-19 23:54:53,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:54:53,519 INFO L93 Difference]: Finished difference Result 821 states and 821 transitions. [2020-07-19 23:54:53,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2020-07-19 23:54:53,521 INFO L78 Accepts]: Start accepts. Automaton has 121 states. Word has length 808 [2020-07-19 23:54:53,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:54:53,523 INFO L225 Difference]: With dead ends: 821 [2020-07-19 23:54:53,523 INFO L226 Difference]: Without dead ends: 819 [2020-07-19 23:54:53,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1157 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=6802, Invalid=7960, Unknown=0, NotChecked=0, Total=14762 [2020-07-19 23:54:53,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2020-07-19 23:54:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 818. [2020-07-19 23:54:53,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 818 states. [2020-07-19 23:54:53,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 818 transitions. [2020-07-19 23:54:53,533 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 818 transitions. Word has length 808 [2020-07-19 23:54:53,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:54:53,534 INFO L479 AbstractCegarLoop]: Abstraction has 818 states and 818 transitions. [2020-07-19 23:54:53,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 121 states. [2020-07-19 23:54:53,534 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 818 transitions. [2020-07-19 23:54:53,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2020-07-19 23:54:53,539 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:54:53,539 INFO L422 BasicCegarLoop]: trace histogram [116, 116, 116, 115, 115, 115, 115, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:54:53,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:54:53,740 INFO L427 AbstractCegarLoop]: === Iteration 116 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:54:53,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:54:53,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1908274024, now seen corresponding path program 115 times [2020-07-19 23:54:53,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:54:53,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040294355] [2020-07-19 23:54:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:54:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 46345 backedges. 230 proven. 19895 refuted. 0 times theorem prover too weak. 26220 trivial. 0 not checked. [2020-07-19 23:55:09,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040294355] [2020-07-19 23:55:09,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473571923] [2020-07-19 23:55:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@11868212 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:55:09,346 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@11868212 issued 4 check-sat command(s) [2020-07-19 23:55:09,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:55:09,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 119 conjunts are in the unsatisfiable core [2020-07-19 23:55:09,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:55:09,378 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:55:09,923 INFO L134 CoverageAnalysis]: Checked inductivity of 46345 backedges. 230 proven. 19895 refuted. 0 times theorem prover too weak. 26220 trivial. 0 not checked. [2020-07-19 23:55:09,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:55:09,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120] total 122 [2020-07-19 23:55:09,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343395896] [2020-07-19 23:55:09,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 122 states [2020-07-19 23:55:09,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:55:09,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 122 interpolants. [2020-07-19 23:55:09,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6913, Invalid=7849, Unknown=0, NotChecked=0, Total=14762 [2020-07-19 23:55:09,926 INFO L87 Difference]: Start difference. First operand 818 states and 818 transitions. Second operand 122 states. [2020-07-19 23:55:14,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:55:14,078 INFO L93 Difference]: Finished difference Result 828 states and 828 transitions. [2020-07-19 23:55:14,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2020-07-19 23:55:14,080 INFO L78 Accepts]: Start accepts. Automaton has 122 states. Word has length 815 [2020-07-19 23:55:14,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:55:14,082 INFO L225 Difference]: With dead ends: 828 [2020-07-19 23:55:14,082 INFO L226 Difference]: Without dead ends: 826 [2020-07-19 23:55:14,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1167 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=6919, Invalid=8087, Unknown=0, NotChecked=0, Total=15006 [2020-07-19 23:55:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2020-07-19 23:55:14,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 825. [2020-07-19 23:55:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2020-07-19 23:55:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 825 transitions. [2020-07-19 23:55:14,097 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 825 transitions. Word has length 815 [2020-07-19 23:55:14,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:55:14,098 INFO L479 AbstractCegarLoop]: Abstraction has 825 states and 825 transitions. [2020-07-19 23:55:14,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 122 states. [2020-07-19 23:55:14,098 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 825 transitions. [2020-07-19 23:55:14,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-07-19 23:55:14,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:55:14,106 INFO L422 BasicCegarLoop]: trace histogram [117, 117, 117, 116, 116, 116, 116, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:55:14,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable115 [2020-07-19 23:55:14,320 INFO L427 AbstractCegarLoop]: === Iteration 117 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:55:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:55:14,320 INFO L82 PathProgramCache]: Analyzing trace with hash -497607947, now seen corresponding path program 116 times [2020-07-19 23:55:14,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:55:14,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82310336] [2020-07-19 23:55:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:55:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 47154 backedges. 232 proven. 20242 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2020-07-19 23:55:30,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82310336] [2020-07-19 23:55:30,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148888044] [2020-07-19 23:55:30,358 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@63849f78 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 [2020-07-19 23:55:30,569 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@63849f78 issued 4 check-sat command(s) [2020-07-19 23:55:30,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:55:30,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 120 conjunts are in the unsatisfiable core [2020-07-19 23:55:30,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:55:30,601 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:55:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 47154 backedges. 232 proven. 20242 refuted. 0 times theorem prover too weak. 26680 trivial. 0 not checked. [2020-07-19 23:55:31,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:55:31,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 121] total 123 [2020-07-19 23:55:31,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069288230] [2020-07-19 23:55:31,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 123 states [2020-07-19 23:55:31,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:55:31,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2020-07-19 23:55:31,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7031, Invalid=7975, Unknown=0, NotChecked=0, Total=15006 [2020-07-19 23:55:31,162 INFO L87 Difference]: Start difference. First operand 825 states and 825 transitions. Second operand 123 states. [2020-07-19 23:55:35,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:55:35,662 INFO L93 Difference]: Finished difference Result 835 states and 835 transitions. [2020-07-19 23:55:35,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2020-07-19 23:55:35,664 INFO L78 Accepts]: Start accepts. Automaton has 123 states. Word has length 822 [2020-07-19 23:55:35,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:55:35,667 INFO L225 Difference]: With dead ends: 835 [2020-07-19 23:55:35,667 INFO L226 Difference]: Without dead ends: 833 [2020-07-19 23:55:35,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1177 GetRequests, 1055 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=7037, Invalid=8215, Unknown=0, NotChecked=0, Total=15252 [2020-07-19 23:55:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-07-19 23:55:35,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 832. [2020-07-19 23:55:35,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-07-19 23:55:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 832 transitions. [2020-07-19 23:55:35,680 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 832 transitions. Word has length 822 [2020-07-19 23:55:35,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:55:35,681 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 832 transitions. [2020-07-19 23:55:35,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 123 states. [2020-07-19 23:55:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 832 transitions. [2020-07-19 23:55:35,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2020-07-19 23:55:35,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:55:35,688 INFO L422 BasicCegarLoop]: trace histogram [118, 118, 118, 117, 117, 117, 117, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:55:35,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:55:35,889 INFO L427 AbstractCegarLoop]: === Iteration 118 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:55:35,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:55:35,890 INFO L82 PathProgramCache]: Analyzing trace with hash -931542328, now seen corresponding path program 117 times [2020-07-19 23:55:35,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:55:35,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502004110] [2020-07-19 23:55:35,891 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:55:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:55:52,837 INFO L134 CoverageAnalysis]: Checked inductivity of 47970 backedges. 234 proven. 20592 refuted. 0 times theorem prover too weak. 27144 trivial. 0 not checked. [2020-07-19 23:55:52,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502004110] [2020-07-19 23:55:52,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279549571] [2020-07-19 23:55:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47cac2da No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:55:53,069 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@47cac2da issued 4 check-sat command(s) [2020-07-19 23:55:53,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:55:53,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1426 conjuncts, 121 conjunts are in the unsatisfiable core [2020-07-19 23:55:53,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:55:53,104 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:55:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 47970 backedges. 234 proven. 20592 refuted. 0 times theorem prover too weak. 27144 trivial. 0 not checked. [2020-07-19 23:55:53,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:55:53,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 122] total 124 [2020-07-19 23:55:53,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45932599] [2020-07-19 23:55:53,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 124 states [2020-07-19 23:55:53,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:55:53,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2020-07-19 23:55:53,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7150, Invalid=8102, Unknown=0, NotChecked=0, Total=15252 [2020-07-19 23:55:53,676 INFO L87 Difference]: Start difference. First operand 832 states and 832 transitions. Second operand 124 states. [2020-07-19 23:55:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:55:58,498 INFO L93 Difference]: Finished difference Result 842 states and 842 transitions. [2020-07-19 23:55:58,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2020-07-19 23:55:58,500 INFO L78 Accepts]: Start accepts. Automaton has 124 states. Word has length 829 [2020-07-19 23:55:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:55:58,502 INFO L225 Difference]: With dead ends: 842 [2020-07-19 23:55:58,502 INFO L226 Difference]: Without dead ends: 840 [2020-07-19 23:55:58,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1187 GetRequests, 1064 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=7156, Invalid=8344, Unknown=0, NotChecked=0, Total=15500 [2020-07-19 23:55:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2020-07-19 23:55:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 839. [2020-07-19 23:55:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2020-07-19 23:55:58,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 839 transitions. [2020-07-19 23:55:58,513 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 839 transitions. Word has length 829 [2020-07-19 23:55:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:55:58,513 INFO L479 AbstractCegarLoop]: Abstraction has 839 states and 839 transitions. [2020-07-19 23:55:58,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 124 states. [2020-07-19 23:55:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 839 transitions. [2020-07-19 23:55:58,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2020-07-19 23:55:58,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:55:58,518 INFO L422 BasicCegarLoop]: trace histogram [119, 119, 119, 118, 118, 118, 118, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:55:58,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:55:58,719 INFO L427 AbstractCegarLoop]: === Iteration 119 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:55:58,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:55:58,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1537460331, now seen corresponding path program 118 times [2020-07-19 23:55:58,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:55:58,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468913641] [2020-07-19 23:55:58,721 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:55:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 48793 backedges. 236 proven. 20945 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2020-07-19 23:56:16,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468913641] [2020-07-19 23:56:16,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392641895] [2020-07-19 23:56:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4333baa6 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 [2020-07-19 23:56:16,295 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4333baa6 issued 4 check-sat command(s) [2020-07-19 23:56:16,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:56:16,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 122 conjunts are in the unsatisfiable core [2020-07-19 23:56:16,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:56:16,327 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:56:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 48793 backedges. 236 proven. 20945 refuted. 0 times theorem prover too weak. 27612 trivial. 0 not checked. [2020-07-19 23:56:16,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:56:16,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [123, 123] total 125 [2020-07-19 23:56:16,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167730890] [2020-07-19 23:56:16,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 125 states [2020-07-19 23:56:16,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:56:16,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2020-07-19 23:56:16,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7270, Invalid=8230, Unknown=0, NotChecked=0, Total=15500 [2020-07-19 23:56:16,948 INFO L87 Difference]: Start difference. First operand 839 states and 839 transitions. Second operand 125 states. [2020-07-19 23:56:21,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:56:21,838 INFO L93 Difference]: Finished difference Result 849 states and 849 transitions. [2020-07-19 23:56:21,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2020-07-19 23:56:21,840 INFO L78 Accepts]: Start accepts. Automaton has 125 states. Word has length 836 [2020-07-19 23:56:21,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:56:21,843 INFO L225 Difference]: With dead ends: 849 [2020-07-19 23:56:21,843 INFO L226 Difference]: Without dead ends: 847 [2020-07-19 23:56:21,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1073 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=7276, Invalid=8474, Unknown=0, NotChecked=0, Total=15750 [2020-07-19 23:56:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2020-07-19 23:56:21,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 846. [2020-07-19 23:56:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-07-19 23:56:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 846 transitions. [2020-07-19 23:56:21,858 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 846 transitions. Word has length 836 [2020-07-19 23:56:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:56:21,859 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 846 transitions. [2020-07-19 23:56:21,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 125 states. [2020-07-19 23:56:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 846 transitions. [2020-07-19 23:56:21,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-07-19 23:56:21,867 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:56:21,867 INFO L422 BasicCegarLoop]: trace histogram [120, 120, 120, 119, 119, 119, 119, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:56:22,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2020-07-19 23:56:22,083 INFO L427 AbstractCegarLoop]: === Iteration 120 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:56:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:56:22,083 INFO L82 PathProgramCache]: Analyzing trace with hash 880359976, now seen corresponding path program 119 times [2020-07-19 23:56:22,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:56:22,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306794251] [2020-07-19 23:56:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:56:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:56:40,072 INFO L134 CoverageAnalysis]: Checked inductivity of 49623 backedges. 238 proven. 21301 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2020-07-19 23:56:40,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306794251] [2020-07-19 23:56:40,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424521696] [2020-07-19 23:56:40,072 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2e761265 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:56:40,289 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2e761265 issued 4 check-sat command(s) [2020-07-19 23:56:40,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:56:40,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 123 conjunts are in the unsatisfiable core [2020-07-19 23:56:40,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:56:40,334 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:56:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 49623 backedges. 238 proven. 21301 refuted. 0 times theorem prover too weak. 28084 trivial. 0 not checked. [2020-07-19 23:56:40,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:56:40,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 124] total 126 [2020-07-19 23:56:40,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658791167] [2020-07-19 23:56:40,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 126 states [2020-07-19 23:56:40,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:56:40,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2020-07-19 23:56:40,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7391, Invalid=8359, Unknown=0, NotChecked=0, Total=15750 [2020-07-19 23:56:40,967 INFO L87 Difference]: Start difference. First operand 846 states and 846 transitions. Second operand 126 states. [2020-07-19 23:56:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:56:46,113 INFO L93 Difference]: Finished difference Result 856 states and 856 transitions. [2020-07-19 23:56:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2020-07-19 23:56:46,115 INFO L78 Accepts]: Start accepts. Automaton has 126 states. Word has length 843 [2020-07-19 23:56:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:56:46,118 INFO L225 Difference]: With dead ends: 856 [2020-07-19 23:56:46,118 INFO L226 Difference]: Without dead ends: 854 [2020-07-19 23:56:46,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1207 GetRequests, 1082 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=7397, Invalid=8605, Unknown=0, NotChecked=0, Total=16002 [2020-07-19 23:56:46,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2020-07-19 23:56:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 853. [2020-07-19 23:56:46,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-07-19 23:56:46,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 853 transitions. [2020-07-19 23:56:46,132 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 853 transitions. Word has length 843 [2020-07-19 23:56:46,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:56:46,132 INFO L479 AbstractCegarLoop]: Abstraction has 853 states and 853 transitions. [2020-07-19 23:56:46,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 126 states. [2020-07-19 23:56:46,132 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 853 transitions. [2020-07-19 23:56:46,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2020-07-19 23:56:46,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:56:46,140 INFO L422 BasicCegarLoop]: trace histogram [121, 121, 121, 120, 120, 120, 120, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:56:46,340 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:56:46,341 INFO L427 AbstractCegarLoop]: === Iteration 121 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:56:46,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:56:46,341 INFO L82 PathProgramCache]: Analyzing trace with hash 576896053, now seen corresponding path program 120 times [2020-07-19 23:56:46,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:56:46,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789610432] [2020-07-19 23:56:46,342 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@6d40f58d [2020-07-19 23:56:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:57:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 50460 backedges. 240 proven. 21660 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2020-07-19 23:57:04,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789610432] [2020-07-19 23:57:04,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639690064] [2020-07-19 23:57:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51f9cfa8 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:57:05,042 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@51f9cfa8 issued 4 check-sat command(s) [2020-07-19 23:57:05,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:57:05,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 124 conjunts are in the unsatisfiable core [2020-07-19 23:57:05,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:57:05,085 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-19 23:57:05,724 INFO L134 CoverageAnalysis]: Checked inductivity of 50460 backedges. 240 proven. 21660 refuted. 0 times theorem prover too weak. 28560 trivial. 0 not checked. [2020-07-19 23:57:05,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:57:05,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [125, 125] total 127 [2020-07-19 23:57:05,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934874307] [2020-07-19 23:57:05,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 127 states [2020-07-19 23:57:05,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:57:05,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2020-07-19 23:57:05,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7513, Invalid=8489, Unknown=0, NotChecked=0, Total=16002 [2020-07-19 23:57:05,727 INFO L87 Difference]: Start difference. First operand 853 states and 853 transitions. Second operand 127 states.