/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 19:27:49,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 19:27:49,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 19:27:49,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 19:27:49,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 19:27:49,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 19:27:49,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 19:27:49,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 19:27:49,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 19:27:49,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 19:27:49,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 19:27:49,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 19:27:49,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 19:27:49,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 19:27:49,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 19:27:49,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 19:27:49,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 19:27:49,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 19:27:49,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 19:27:49,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 19:27:49,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 19:27:49,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 19:27:49,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 19:27:49,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 19:27:49,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 19:27:49,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 19:27:49,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 19:27:49,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 19:27:49,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 19:27:49,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 19:27:49,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 19:27:49,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 19:27:49,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 19:27:49,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 19:27:49,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 19:27:49,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 19:27:49,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 19:27:49,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 19:27:49,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 19:27:49,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 19:27:49,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 19:27:49,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 19:27:49,468 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 19:27:49,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 19:27:49,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 19:27:49,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 19:27:49,470 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 19:27:49,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 19:27:49,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 19:27:49,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 19:27:49,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 19:27:49,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 19:27:49,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 19:27:49,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 19:27:49,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 19:27:49,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 19:27:49,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 19:27:49,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 19:27:49,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 19:27:49,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 19:27:49,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 19:27:49,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 19:27:49,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 19:27:49,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 19:27:49,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 19:27:49,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 19:27:49,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 19:27:49,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 19:27:49,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 19:27:49,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 19:27:49,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 19:27:49,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 19:27:49,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 19:27:49,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 19:27:49,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 19:27:49,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 19:27:49,790 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 19:27:49,791 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:27:49,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f5102e0e/777ef377ef9f4904abc6880ac5842dea/FLAG454635ff3 [2020-10-12 19:27:50,337 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 19:27:50,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:27:50,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f5102e0e/777ef377ef9f4904abc6880ac5842dea/FLAG454635ff3 [2020-10-12 19:27:50,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2f5102e0e/777ef377ef9f4904abc6880ac5842dea [2020-10-12 19:27:50,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 19:27:50,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 19:27:50,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 19:27:50,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 19:27:50,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 19:27:50,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:27:50" (1/1) ... [2020-10-12 19:27:50,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c04ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:50, skipping insertion in model container [2020-10-12 19:27:50,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:27:50" (1/1) ... [2020-10-12 19:27:50,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 19:27:50,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 19:27:51,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:27:51,343 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 19:27:51,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 19:27:51,490 INFO L208 MainTranslator]: Completed translation [2020-10-12 19:27:51,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51 WrapperNode [2020-10-12 19:27:51,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 19:27:51,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 19:27:51,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 19:27:51,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 19:27:51,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... [2020-10-12 19:27:51,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... [2020-10-12 19:27:51,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... [2020-10-12 19:27:51,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... [2020-10-12 19:27:51,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... [2020-10-12 19:27:51,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... [2020-10-12 19:27:51,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... [2020-10-12 19:27:51,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 19:27:51,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 19:27:51,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 19:27:51,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 19:27:51,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-12 19:27:51,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 19:27:51,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 19:27:51,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 19:27:51,694 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 19:27:51,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 19:27:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 19:27:51,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 19:27:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 19:27:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 19:27:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 19:27:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 19:27:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 19:27:51,697 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 19:27:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 19:27:51,698 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 19:27:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 19:27:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 19:27:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 19:27:51,699 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 19:27:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 19:27:51,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 19:27:52,887 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 19:27:52,887 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-12 19:27:52,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:27:52 BoogieIcfgContainer [2020-10-12 19:27:52,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 19:27:52,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 19:27:52,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 19:27:52,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 19:27:52,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:27:50" (1/3) ... [2020-10-12 19:27:52,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752ed088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:27:52, skipping insertion in model container [2020-10-12 19:27:52,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:27:51" (2/3) ... [2020-10-12 19:27:52,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752ed088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:27:52, skipping insertion in model container [2020-10-12 19:27:52,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:27:52" (3/3) ... [2020-10-12 19:27:52,905 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-10-12 19:27:52,916 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 19:27:52,928 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-10-12 19:27:52,942 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-12 19:27:52,978 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 19:27:52,978 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 19:27:52,978 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 19:27:52,978 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 19:27:52,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 19:27:52,979 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 19:27:52,979 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 19:27:52,979 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 19:27:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-12 19:27:53,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 19:27:53,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:27:53,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:27:53,030 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:27:53,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:27:53,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1846019956, now seen corresponding path program 1 times [2020-10-12 19:27:53,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:27:53,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759729143] [2020-10-12 19:27:53,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:27:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:27:53,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:53,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:53,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:53,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:54,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:54,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:55,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:57,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:58,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:58,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:27:58,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 19:27:58,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:27:58,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-12 19:27:58,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:27:58,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:27:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:27:58,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-12 19:27:58,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 19:27:58,950 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:27:58,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:27:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:27:58,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:27:58,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:27:58,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:27:58,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:27:58,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:27:58,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:27:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:27:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:27:58,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:27:58,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:27:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:27:59,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759729143] [2020-10-12 19:27:59,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:27:59,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-12 19:27:59,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772230240] [2020-10-12 19:27:59,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 19:27:59,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:27:59,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 19:27:59,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 19:27:59,026 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 10 states. [2020-10-12 19:27:59,408 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-12 19:27:59,871 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-10-12 19:28:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:28:03,883 INFO L93 Difference]: Finished difference Result 1212 states and 1932 transitions. [2020-10-12 19:28:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 19:28:03,885 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-12 19:28:03,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:28:03,916 INFO L225 Difference]: With dead ends: 1212 [2020-10-12 19:28:03,916 INFO L226 Difference]: Without dead ends: 1090 [2020-10-12 19:28:03,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-10-12 19:28:03,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2020-10-12 19:28:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 213. [2020-10-12 19:28:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-10-12 19:28:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 262 transitions. [2020-10-12 19:28:04,033 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 262 transitions. Word has length 50 [2020-10-12 19:28:04,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:28:04,033 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 262 transitions. [2020-10-12 19:28:04,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 19:28:04,034 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 262 transitions. [2020-10-12 19:28:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-12 19:28:04,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:28:04,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:28:04,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 19:28:04,041 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:28:04,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:28:04,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1477961815, now seen corresponding path program 1 times [2020-10-12 19:28:04,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:28:04,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004183026] [2020-10-12 19:28:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:28:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:04,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:04,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:04,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:04,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:04,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:04,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:04,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:05,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:06,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:06,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:06,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:06,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:07,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:07,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:07,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:07,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:07,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:07,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:09,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:09,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-12 19:28:09,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 19:28:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 19:28:09,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 19:28:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-12 19:28:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-12 19:28:09,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:09,429 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:28:09,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:28:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:09,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:09,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:09,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:28:09,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:28:09,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:28:09,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:09,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:28:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:28:09,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:28:09,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:28:09,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004183026] [2020-10-12 19:28:09,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:28:09,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:28:09,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980732336] [2020-10-12 19:28:09,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 19:28:09,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:28:09,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 19:28:09,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-12 19:28:09,493 INFO L87 Difference]: Start difference. First operand 213 states and 262 transitions. Second operand 11 states. [2020-10-12 19:28:09,695 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-10-12 19:28:12,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:28:12,222 INFO L93 Difference]: Finished difference Result 716 states and 973 transitions. [2020-10-12 19:28:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 19:28:12,223 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2020-10-12 19:28:12,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:28:12,229 INFO L225 Difference]: With dead ends: 716 [2020-10-12 19:28:12,229 INFO L226 Difference]: Without dead ends: 657 [2020-10-12 19:28:12,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2020-10-12 19:28:12,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2020-10-12 19:28:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 288. [2020-10-12 19:28:12,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-10-12 19:28:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 373 transitions. [2020-10-12 19:28:12,261 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 373 transitions. Word has length 50 [2020-10-12 19:28:12,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:28:12,261 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 373 transitions. [2020-10-12 19:28:12,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 19:28:12,262 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 373 transitions. [2020-10-12 19:28:12,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 19:28:12,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:28:12,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:28:12,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 19:28:12,264 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:28:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:28:12,265 INFO L82 PathProgramCache]: Analyzing trace with hash 352394975, now seen corresponding path program 1 times [2020-10-12 19:28:12,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:28:12,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389021233] [2020-10-12 19:28:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:28:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:12,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:12,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:12,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:12,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:12,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:12,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:12,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:13,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:13,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:15,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:15,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:15,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:16,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:17,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:17,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 19:28:17,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:28:17,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-12 19:28:17,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:28:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:28:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-12 19:28:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:28:17,618 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:28:17,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:28:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:17,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:17,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:17,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:28:17,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:28:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 19:28:17,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:28:17,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:28:17,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:28:17,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:28:17,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389021233] [2020-10-12 19:28:17,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:28:17,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 19:28:17,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161412359] [2020-10-12 19:28:17,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:28:17,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:28:17,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:28:17,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:28:17,668 INFO L87 Difference]: Start difference. First operand 288 states and 373 transitions. Second operand 12 states. [2020-10-12 19:28:18,145 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 155 [2020-10-12 19:28:20,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:28:20,714 INFO L93 Difference]: Finished difference Result 1195 states and 1707 transitions. [2020-10-12 19:28:20,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-12 19:28:20,715 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-12 19:28:20,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:28:20,723 INFO L225 Difference]: With dead ends: 1195 [2020-10-12 19:28:20,723 INFO L226 Difference]: Without dead ends: 1179 [2020-10-12 19:28:20,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2020-10-12 19:28:20,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states. [2020-10-12 19:28:20,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 297. [2020-10-12 19:28:20,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-12 19:28:20,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 386 transitions. [2020-10-12 19:28:20,791 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 386 transitions. Word has length 51 [2020-10-12 19:28:20,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:28:20,794 INFO L479 AbstractCegarLoop]: Abstraction has 297 states and 386 transitions. [2020-10-12 19:28:20,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:28:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 386 transitions. [2020-10-12 19:28:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 19:28:20,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:28:20,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:28:20,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 19:28:20,804 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:28:20,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:28:20,805 INFO L82 PathProgramCache]: Analyzing trace with hash 414157740, now seen corresponding path program 1 times [2020-10-12 19:28:20,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:28:20,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590521509] [2020-10-12 19:28:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:28:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:20,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:20,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:20,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:20,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:21,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:21,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:21,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:21,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:21,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:22,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:22,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:24,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:24,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:25,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:25,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:25,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:25,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:25,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 19:28:25,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 19:28:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 19:28:25,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:28:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:28:25,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 19:28:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:26,361 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:28:26,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:28:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:26,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:26,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:26,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:28:26,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:28:26,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:28:26,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:26,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:28:26,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:28:26,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:28:26,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:28:26,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590521509] [2020-10-12 19:28:26,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:28:26,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:28:26,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692876994] [2020-10-12 19:28:26,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:28:26,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:28:26,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:28:26,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:28:26,405 INFO L87 Difference]: Start difference. First operand 297 states and 386 transitions. Second operand 12 states. [2020-10-12 19:28:26,533 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-10-12 19:28:26,994 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 169 [2020-10-12 19:28:27,565 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-10-12 19:28:30,503 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-12 19:28:30,867 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-10-12 19:28:31,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:28:31,100 INFO L93 Difference]: Finished difference Result 1336 states and 1882 transitions. [2020-10-12 19:28:31,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 19:28:31,100 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-12 19:28:31,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:28:31,108 INFO L225 Difference]: With dead ends: 1336 [2020-10-12 19:28:31,108 INFO L226 Difference]: Without dead ends: 1234 [2020-10-12 19:28:31,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 19:28:31,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1234 states. [2020-10-12 19:28:31,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1234 to 309. [2020-10-12 19:28:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-10-12 19:28:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 405 transitions. [2020-10-12 19:28:31,150 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 405 transitions. Word has length 51 [2020-10-12 19:28:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:28:31,151 INFO L479 AbstractCegarLoop]: Abstraction has 309 states and 405 transitions. [2020-10-12 19:28:31,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:28:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 405 transitions. [2020-10-12 19:28:31,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 19:28:31,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:28:31,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:28:31,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 19:28:31,153 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:28:31,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:28:31,153 INFO L82 PathProgramCache]: Analyzing trace with hash 971590540, now seen corresponding path program 1 times [2020-10-12 19:28:31,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:28:31,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129514315] [2020-10-12 19:28:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:28:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:31,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:31,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:31,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:31,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:31,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:31,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:31,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:32,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:32,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:32,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:32,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:32,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:32,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:33,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:35,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:35,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:35,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:36,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:36,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 19:28:36,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 19:28:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:28:36,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 19:28:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:28:36,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-12 19:28:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:36,431 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:28:36,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:28:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:36,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:36,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:36,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:28:36,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:28:36,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:28:36,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:28:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:28:36,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:28:36,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:28:36,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129514315] [2020-10-12 19:28:36,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:28:36,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-12 19:28:36,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004003697] [2020-10-12 19:28:36,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 19:28:36,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:28:36,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 19:28:36,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-12 19:28:36,473 INFO L87 Difference]: Start difference. First operand 309 states and 405 transitions. Second operand 9 states. [2020-10-12 19:28:36,646 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2020-10-12 19:28:39,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:28:39,453 INFO L93 Difference]: Finished difference Result 1484 states and 2146 transitions. [2020-10-12 19:28:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:28:39,454 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-10-12 19:28:39,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:28:39,460 INFO L225 Difference]: With dead ends: 1484 [2020-10-12 19:28:39,461 INFO L226 Difference]: Without dead ends: 1375 [2020-10-12 19:28:39,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:28:39,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2020-10-12 19:28:39,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 658. [2020-10-12 19:28:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2020-10-12 19:28:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 930 transitions. [2020-10-12 19:28:39,581 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 930 transitions. Word has length 51 [2020-10-12 19:28:39,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:28:39,581 INFO L479 AbstractCegarLoop]: Abstraction has 658 states and 930 transitions. [2020-10-12 19:28:39,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 19:28:39,581 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 930 transitions. [2020-10-12 19:28:39,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 19:28:39,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:28:39,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:28:39,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 19:28:39,584 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:28:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:28:39,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1090569306, now seen corresponding path program 1 times [2020-10-12 19:28:39,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:28:39,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185900977] [2020-10-12 19:28:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:28:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:39,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:39,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:39,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:39,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:39,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:39,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:41,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:42,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:42,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:42,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:42,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:42,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:42,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:44,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:44,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 19:28:44,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 19:28:44,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:28:44,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:28:44,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-12 19:28:44,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-12 19:28:44,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:44,945 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:28:44,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:28:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:44,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:44,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:44,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:28:44,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:28:44,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 19:28:44,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:28:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:28:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:28:44,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:28:44,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185900977] [2020-10-12 19:28:44,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:28:44,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:28:44,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621486912] [2020-10-12 19:28:44,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:28:44,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:28:44,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:28:44,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:28:44,973 INFO L87 Difference]: Start difference. First operand 658 states and 930 transitions. Second operand 12 states. [2020-10-12 19:28:45,216 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-12 19:28:47,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:28:47,033 INFO L93 Difference]: Finished difference Result 2400 states and 3605 transitions. [2020-10-12 19:28:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-12 19:28:47,034 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-12 19:28:47,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:28:47,044 INFO L225 Difference]: With dead ends: 2400 [2020-10-12 19:28:47,044 INFO L226 Difference]: Without dead ends: 2052 [2020-10-12 19:28:47,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2020-10-12 19:28:47,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2020-10-12 19:28:47,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1107. [2020-10-12 19:28:47,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1107 states. [2020-10-12 19:28:47,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1595 transitions. [2020-10-12 19:28:47,193 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1595 transitions. Word has length 51 [2020-10-12 19:28:47,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:28:47,194 INFO L479 AbstractCegarLoop]: Abstraction has 1107 states and 1595 transitions. [2020-10-12 19:28:47,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:28:47,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1595 transitions. [2020-10-12 19:28:47,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 19:28:47,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:28:47,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:28:47,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 19:28:47,196 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:28:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:28:47,196 INFO L82 PathProgramCache]: Analyzing trace with hash -870789754, now seen corresponding path program 1 times [2020-10-12 19:28:47,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:28:47,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411298854] [2020-10-12 19:28:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:28:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:47,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:47,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:47,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:47,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:47,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:47,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:48,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:48,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:49,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:49,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:50,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:50,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:52,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:52,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 19:28:52,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-10-12 19:28:52,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 19:28:52,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:28:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:28:52,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-12 19:28:52,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:52,487 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2020-10-12 19:28:52,605 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-10-12 19:28:52,984 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:28:52,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:28:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:28:52,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:28:53,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:28:53,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:28:53,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:28:53,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 19:28:53,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:28:53,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:28:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:28:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:28:53,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:28:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:28:53,022 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411298854] [2020-10-12 19:28:53,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:28:53,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:28:53,023 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302577471] [2020-10-12 19:28:53,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:28:53,023 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:28:53,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:28:53,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:28:53,024 INFO L87 Difference]: Start difference. First operand 1107 states and 1595 transitions. Second operand 12 states. [2020-10-12 19:28:53,203 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-10-12 19:28:53,771 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 186 [2020-10-12 19:28:54,140 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-10-12 19:28:54,341 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-10-12 19:28:54,559 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2020-10-12 19:28:54,745 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-10-12 19:28:55,001 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-12 19:28:55,376 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-12 19:28:55,951 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2020-10-12 19:28:57,989 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-12 19:28:58,204 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2020-10-12 19:28:58,422 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2020-10-12 19:28:58,835 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2020-10-12 19:28:59,758 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2020-10-12 19:28:59,903 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2020-10-12 19:29:00,101 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-10-12 19:29:00,323 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2020-10-12 19:29:00,507 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-10-12 19:29:00,730 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-10-12 19:29:01,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:29:01,229 INFO L93 Difference]: Finished difference Result 5859 states and 8919 transitions. [2020-10-12 19:29:01,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-12 19:29:01,229 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-12 19:29:01,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:29:01,248 INFO L225 Difference]: With dead ends: 5859 [2020-10-12 19:29:01,249 INFO L226 Difference]: Without dead ends: 5148 [2020-10-12 19:29:01,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=451, Invalid=1355, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 19:29:01,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5148 states. [2020-10-12 19:29:01,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5148 to 1105. [2020-10-12 19:29:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-10-12 19:29:01,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1591 transitions. [2020-10-12 19:29:01,492 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1591 transitions. Word has length 51 [2020-10-12 19:29:01,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:29:01,494 INFO L479 AbstractCegarLoop]: Abstraction has 1105 states and 1591 transitions. [2020-10-12 19:29:01,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:29:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1591 transitions. [2020-10-12 19:29:01,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-12 19:29:01,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:29:01,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:29:01,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 19:29:01,496 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:29:01,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:29:01,497 INFO L82 PathProgramCache]: Analyzing trace with hash -502731613, now seen corresponding path program 1 times [2020-10-12 19:29:01,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:29:01,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102457435] [2020-10-12 19:29:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:29:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:01,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:01,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:01,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:01,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:01,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:01,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:03,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:04,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:06,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:06,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:06,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-12 19:29:06,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 19:29:06,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:29:06,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:06,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 19:29:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:29:06,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 19:29:06,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:06,891 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:29:06,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:29:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:06,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:06,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:06,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:29:06,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:29:06,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 19:29:06,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:29:06,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:29:06,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:29:06,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:29:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:29:06,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102457435] [2020-10-12 19:29:06,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:29:06,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 19:29:06,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74479017] [2020-10-12 19:29:06,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 19:29:06,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:29:06,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 19:29:06,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-10-12 19:29:06,935 INFO L87 Difference]: Start difference. First operand 1105 states and 1591 transitions. Second operand 12 states. [2020-10-12 19:29:07,509 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 152 [2020-10-12 19:29:09,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:29:09,775 INFO L93 Difference]: Finished difference Result 2025 states and 2962 transitions. [2020-10-12 19:29:09,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 19:29:09,776 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 51 [2020-10-12 19:29:09,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:29:09,784 INFO L225 Difference]: With dead ends: 2025 [2020-10-12 19:29:09,784 INFO L226 Difference]: Without dead ends: 2009 [2020-10-12 19:29:09,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2020-10-12 19:29:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2020-10-12 19:29:10,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1113. [2020-10-12 19:29:10,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1113 states. [2020-10-12 19:29:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1600 transitions. [2020-10-12 19:29:10,040 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1600 transitions. Word has length 51 [2020-10-12 19:29:10,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:29:10,041 INFO L479 AbstractCegarLoop]: Abstraction has 1113 states and 1600 transitions. [2020-10-12 19:29:10,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 19:29:10,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1600 transitions. [2020-10-12 19:29:10,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 19:29:10,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:29:10,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:29:10,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 19:29:10,043 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:29:10,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:29:10,044 INFO L82 PathProgramCache]: Analyzing trace with hash -184083664, now seen corresponding path program 1 times [2020-10-12 19:29:10,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:29:10,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727274499] [2020-10-12 19:29:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:29:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:10,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:10,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:10,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:10,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:10,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:10,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:11,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:12,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:15,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:15,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 19:29:15,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-12 19:29:15,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 19:29:15,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:29:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:29:15,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 19:29:15,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:15,550 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:29:15,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:29:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:15,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:15,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:15,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:29:15,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:29:15,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:29:15,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:29:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:29:15,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:29:15,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:29:15,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:29:15,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727274499] [2020-10-12 19:29:15,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:29:15,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:29:15,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598987251] [2020-10-12 19:29:15,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:29:15,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:29:15,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:29:15,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:29:15,594 INFO L87 Difference]: Start difference. First operand 1113 states and 1600 transitions. Second operand 13 states. [2020-10-12 19:29:15,871 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-12 19:29:18,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:29:18,667 INFO L93 Difference]: Finished difference Result 2143 states and 3088 transitions. [2020-10-12 19:29:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-12 19:29:18,668 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 52 [2020-10-12 19:29:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:29:18,674 INFO L225 Difference]: With dead ends: 2143 [2020-10-12 19:29:18,675 INFO L226 Difference]: Without dead ends: 2137 [2020-10-12 19:29:18,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=227, Invalid=895, Unknown=0, NotChecked=0, Total=1122 [2020-10-12 19:29:18,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2020-10-12 19:29:18,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 1107. [2020-10-12 19:29:18,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1107 states. [2020-10-12 19:29:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1592 transitions. [2020-10-12 19:29:18,873 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1592 transitions. Word has length 52 [2020-10-12 19:29:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:29:18,873 INFO L479 AbstractCegarLoop]: Abstraction has 1107 states and 1592 transitions. [2020-10-12 19:29:18,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:29:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1592 transitions. [2020-10-12 19:29:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 19:29:18,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:29:18,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:29:18,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 19:29:18,876 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:29:18,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:29:18,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1859329898, now seen corresponding path program 1 times [2020-10-12 19:29:18,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:29:18,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [372634263] [2020-10-12 19:29:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:29:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:18,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:18,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:18,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:20,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:20,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:21,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:21,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:23,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:23,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 19:29:23,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-12 19:29:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:29:23,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:29:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:29:23,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-12 19:29:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:24,586 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:29:24,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:29:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:24,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:24,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:24,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:29:24,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:29:24,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:29:24,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:24,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:29:24,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:29:24,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:29:24,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:24,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:29:24,611 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [372634263] [2020-10-12 19:29:24,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:29:24,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:29:24,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497375042] [2020-10-12 19:29:24,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:29:24,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:29:24,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:29:24,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:29:24,613 INFO L87 Difference]: Start difference. First operand 1107 states and 1592 transitions. Second operand 14 states. [2020-10-12 19:29:24,751 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-10-12 19:29:25,247 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 170 [2020-10-12 19:29:25,934 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-12 19:29:26,126 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-10-12 19:29:26,345 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-10-12 19:29:26,681 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-10-12 19:29:27,294 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-10-12 19:29:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:29:30,129 INFO L93 Difference]: Finished difference Result 3020 states and 4524 transitions. [2020-10-12 19:29:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 19:29:30,130 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 52 [2020-10-12 19:29:30,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:29:30,142 INFO L225 Difference]: With dead ends: 3020 [2020-10-12 19:29:30,143 INFO L226 Difference]: Without dead ends: 2333 [2020-10-12 19:29:30,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=263, Invalid=1143, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 19:29:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2020-10-12 19:29:30,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 1109. [2020-10-12 19:29:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2020-10-12 19:29:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1594 transitions. [2020-10-12 19:29:30,366 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1594 transitions. Word has length 52 [2020-10-12 19:29:30,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:29:30,366 INFO L479 AbstractCegarLoop]: Abstraction has 1109 states and 1594 transitions. [2020-10-12 19:29:30,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:29:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1594 transitions. [2020-10-12 19:29:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 19:29:30,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:29:30,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:29:30,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 19:29:30,369 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:29:30,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:29:30,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1301897098, now seen corresponding path program 1 times [2020-10-12 19:29:30,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:29:30,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827750083] [2020-10-12 19:29:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:29:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:30,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:30,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:30,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:30,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:30,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:30,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:31,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:31,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:31,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:31,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:32,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:32,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:32,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:32,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:32,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:32,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:33,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:34,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:34,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:35,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:35,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 19:29:35,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-12 19:29:35,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:29:35,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:35,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:29:35,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:29:35,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-12 19:29:35,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:35,729 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:29:35,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:29:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:35,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:35,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:35,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:29:35,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:29:35,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:29:35,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:35,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:29:35,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:29:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:29:35,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:35,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:29:35,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827750083] [2020-10-12 19:29:35,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:29:35,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:29:35,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049408693] [2020-10-12 19:29:35,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:29:35,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:29:35,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:29:35,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:29:35,762 INFO L87 Difference]: Start difference. First operand 1109 states and 1594 transitions. Second operand 15 states. [2020-10-12 19:29:36,220 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 152 [2020-10-12 19:29:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:29:38,489 INFO L93 Difference]: Finished difference Result 2781 states and 4082 transitions. [2020-10-12 19:29:38,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-12 19:29:38,490 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2020-10-12 19:29:38,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:29:38,497 INFO L225 Difference]: With dead ends: 2781 [2020-10-12 19:29:38,497 INFO L226 Difference]: Without dead ends: 1797 [2020-10-12 19:29:38,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2020-10-12 19:29:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2020-10-12 19:29:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1050. [2020-10-12 19:29:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2020-10-12 19:29:38,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1514 transitions. [2020-10-12 19:29:38,716 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1514 transitions. Word has length 52 [2020-10-12 19:29:38,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:29:38,717 INFO L479 AbstractCegarLoop]: Abstraction has 1050 states and 1514 transitions. [2020-10-12 19:29:38,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 19:29:38,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1514 transitions. [2020-10-12 19:29:38,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-12 19:29:38,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:29:38,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:29:38,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 19:29:38,718 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:29:38,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:29:38,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1999310382, now seen corresponding path program 1 times [2020-10-12 19:29:38,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:29:38,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991160160] [2020-10-12 19:29:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:29:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:38,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:38,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:38,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:38,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:39,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:40,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:42,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:42,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:42,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:42,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:42,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:43,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 19:29:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:44,226 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:29:44,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:29:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:44,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:44,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:44,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:29:44,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:29:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 19:29:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:29:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:29:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:29:44,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:29:44,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:29:44,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991160160] [2020-10-12 19:29:44,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:29:44,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:29:44,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282984521] [2020-10-12 19:29:44,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-12 19:29:44,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:29:44,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-12 19:29:44,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-12 19:29:44,285 INFO L87 Difference]: Start difference. First operand 1050 states and 1514 transitions. Second operand 15 states. [2020-10-12 19:29:44,845 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 154 [2020-10-12 19:29:48,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:29:48,371 INFO L93 Difference]: Finished difference Result 3631 states and 5477 transitions. [2020-10-12 19:29:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 19:29:48,372 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2020-10-12 19:29:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:29:48,381 INFO L225 Difference]: With dead ends: 3631 [2020-10-12 19:29:48,382 INFO L226 Difference]: Without dead ends: 2818 [2020-10-12 19:29:48,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=339, Invalid=1067, Unknown=0, NotChecked=0, Total=1406 [2020-10-12 19:29:48,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2818 states. [2020-10-12 19:29:48,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2818 to 2121. [2020-10-12 19:29:48,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2121 states. [2020-10-12 19:29:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2121 states to 2121 states and 3214 transitions. [2020-10-12 19:29:48,853 INFO L78 Accepts]: Start accepts. Automaton has 2121 states and 3214 transitions. Word has length 52 [2020-10-12 19:29:48,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:29:48,853 INFO L479 AbstractCegarLoop]: Abstraction has 2121 states and 3214 transitions. [2020-10-12 19:29:48,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-12 19:29:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2121 states and 3214 transitions. [2020-10-12 19:29:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 19:29:48,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:29:48,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:29:48,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 19:29:48,855 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:29:48,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:29:48,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1503177508, now seen corresponding path program 1 times [2020-10-12 19:29:48,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:29:48,855 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1527469369] [2020-10-12 19:29:48,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:29:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:48,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:48,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:48,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:49,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:49,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:49,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:49,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:49,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:49,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:50,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:50,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:50,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:50,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:50,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:50,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:51,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:51,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:51,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:51,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:52,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:52,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:52,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:53,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:53,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:53,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 19:29:53,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 24 [2020-10-12 19:29:53,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 19:29:53,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 19:29:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:29:53,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 19:29:53,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:54,235 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:29:54,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:29:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:54,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:54,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:29:54,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:29:54,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:29:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:29:54,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:29:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:29:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:29:54,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:29:54,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:29:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:29:54,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1527469369] [2020-10-12 19:29:54,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:29:54,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 19:29:54,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564883165] [2020-10-12 19:29:54,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 19:29:54,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:29:54,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 19:29:54,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-12 19:29:54,261 INFO L87 Difference]: Start difference. First operand 2121 states and 3214 transitions. Second operand 13 states. [2020-10-12 19:29:54,501 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-12 19:29:57,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:29:57,079 INFO L93 Difference]: Finished difference Result 4397 states and 6698 transitions. [2020-10-12 19:29:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-12 19:29:57,080 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 53 [2020-10-12 19:29:57,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:29:57,099 INFO L225 Difference]: With dead ends: 4397 [2020-10-12 19:29:57,099 INFO L226 Difference]: Without dead ends: 4391 [2020-10-12 19:29:57,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=202, Invalid=728, Unknown=0, NotChecked=0, Total=930 [2020-10-12 19:29:57,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2020-10-12 19:29:57,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 2134. [2020-10-12 19:29:57,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2134 states. [2020-10-12 19:29:57,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3232 transitions. [2020-10-12 19:29:57,540 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3232 transitions. Word has length 53 [2020-10-12 19:29:57,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:29:57,540 INFO L479 AbstractCegarLoop]: Abstraction has 2134 states and 3232 transitions. [2020-10-12 19:29:57,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 19:29:57,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3232 transitions. [2020-10-12 19:29:57,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 19:29:57,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:29:57,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:29:57,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 19:29:57,542 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:29:57,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:29:57,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2019662876, now seen corresponding path program 1 times [2020-10-12 19:29:57,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:29:57,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551373074] [2020-10-12 19:29:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:29:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:29:57,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:57,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:57,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:57,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:57,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:58,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:59,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:59,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:29:59,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:01,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:02,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:02,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 19:30:02,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-12 19:30:02,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:30:02,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:02,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 19:30:02,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:30:02,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-12 19:30:02,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:30:02,959 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:30:02,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:30:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:02,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:02,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:02,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:30:02,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:30:02,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 19:30:02,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:30:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:30:02,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:30:02,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:30:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:30:02,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551373074] [2020-10-12 19:30:02,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:30:02,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:30:02,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367842665] [2020-10-12 19:30:02,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 19:30:02,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:30:02,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 19:30:02,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-10-12 19:30:02,992 INFO L87 Difference]: Start difference. First operand 2134 states and 3232 transitions. Second operand 17 states. [2020-10-12 19:30:03,572 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2020-10-12 19:30:06,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:30:06,540 INFO L93 Difference]: Finished difference Result 4109 states and 6251 transitions. [2020-10-12 19:30:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-12 19:30:06,541 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 53 [2020-10-12 19:30:06,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:30:06,545 INFO L225 Difference]: With dead ends: 4109 [2020-10-12 19:30:06,546 INFO L226 Difference]: Without dead ends: 2176 [2020-10-12 19:30:06,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2020-10-12 19:30:06,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2176 states. [2020-10-12 19:30:06,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2176 to 2088. [2020-10-12 19:30:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2020-10-12 19:30:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3168 transitions. [2020-10-12 19:30:06,940 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3168 transitions. Word has length 53 [2020-10-12 19:30:06,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:30:06,940 INFO L479 AbstractCegarLoop]: Abstraction has 2088 states and 3168 transitions. [2020-10-12 19:30:06,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 19:30:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3168 transitions. [2020-10-12 19:30:06,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 19:30:06,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:30:06,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:30:06,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 19:30:06,942 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:30:06,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:30:06,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1462230076, now seen corresponding path program 1 times [2020-10-12 19:30:06,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:30:06,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076484095] [2020-10-12 19:30:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:30:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:06,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:06,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:07,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:07,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:07,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:07,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:08,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:09,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:09,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:10,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:10,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:10,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:10,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:10,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:11,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:11,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:11,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 19:30:11,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 22 [2020-10-12 19:30:11,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 19:30:11,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 19:30:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 19:30:11,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-12 19:30:11,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:30:12,379 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:30:12,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:30:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:12,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:12,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 19:30:12,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:30:12,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:30:12,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076484095] [2020-10-12 19:30:12,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:30:12,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 19:30:12,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942353676] [2020-10-12 19:30:12,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 19:30:12,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:30:12,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 19:30:12,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2020-10-12 19:30:12,411 INFO L87 Difference]: Start difference. First operand 2088 states and 3168 transitions. Second operand 17 states. [2020-10-12 19:30:12,777 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-12 19:30:16,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:30:16,774 INFO L93 Difference]: Finished difference Result 4006 states and 6099 transitions. [2020-10-12 19:30:16,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-12 19:30:16,774 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 53 [2020-10-12 19:30:16,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:30:16,784 INFO L225 Difference]: With dead ends: 4006 [2020-10-12 19:30:16,784 INFO L226 Difference]: Without dead ends: 4001 [2020-10-12 19:30:16,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=358, Invalid=1282, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 19:30:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2020-10-12 19:30:17,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 2088. [2020-10-12 19:30:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2020-10-12 19:30:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3167 transitions. [2020-10-12 19:30:17,367 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3167 transitions. Word has length 53 [2020-10-12 19:30:17,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:30:17,367 INFO L479 AbstractCegarLoop]: Abstraction has 2088 states and 3167 transitions. [2020-10-12 19:30:17,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 19:30:17,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3167 transitions. [2020-10-12 19:30:17,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 19:30:17,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:30:17,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:30:17,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 19:30:17,369 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:30:17,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:30:17,369 INFO L82 PathProgramCache]: Analyzing trace with hash 794948189, now seen corresponding path program 1 times [2020-10-12 19:30:17,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:30:17,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367733109] [2020-10-12 19:30:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:30:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:17,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:17,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:17,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:17,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:17,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:17,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:17,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:18,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:18,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:18,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:22,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:22,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 19:30:22,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-12 19:30:22,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:30:22,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:22,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:30:22,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:30:22,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-12 19:30:22,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:30:23,258 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:30:23,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:30:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:23,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:23,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:23,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:30:23,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:30:23,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 19:30:23,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:30:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:30:23,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:30:23,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 19:30:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:30:23,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367733109] [2020-10-12 19:30:23,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:30:23,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:30:23,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791136284] [2020-10-12 19:30:23,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:30:23,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:30:23,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:30:23,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:30:23,307 INFO L87 Difference]: Start difference. First operand 2088 states and 3167 transitions. Second operand 14 states. [2020-10-12 19:30:23,504 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-12 19:30:24,288 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 173 [2020-10-12 19:30:24,823 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-10-12 19:30:25,098 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-10-12 19:30:25,283 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-10-12 19:30:25,501 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-10-12 19:30:25,669 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-10-12 19:30:26,169 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-10-12 19:30:28,338 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-10-12 19:30:28,517 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-10-12 19:30:30,495 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-10-12 19:30:31,260 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-10-12 19:30:31,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:30:31,749 INFO L93 Difference]: Finished difference Result 7279 states and 11211 transitions. [2020-10-12 19:30:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-12 19:30:31,749 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2020-10-12 19:30:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:30:31,763 INFO L225 Difference]: With dead ends: 7279 [2020-10-12 19:30:31,763 INFO L226 Difference]: Without dead ends: 5748 [2020-10-12 19:30:31,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=379, Invalid=1691, Unknown=0, NotChecked=0, Total=2070 [2020-10-12 19:30:31,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2020-10-12 19:30:32,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 2256. [2020-10-12 19:30:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2256 states. [2020-10-12 19:30:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3431 transitions. [2020-10-12 19:30:32,349 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3431 transitions. Word has length 53 [2020-10-12 19:30:32,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:30:32,350 INFO L479 AbstractCegarLoop]: Abstraction has 2256 states and 3431 transitions. [2020-10-12 19:30:32,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:30:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3431 transitions. [2020-10-12 19:30:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-12 19:30:32,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:30:32,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:30:32,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 19:30:32,351 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:30:32,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:30:32,351 INFO L82 PathProgramCache]: Analyzing trace with hash -2144413116, now seen corresponding path program 1 times [2020-10-12 19:30:32,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:30:32,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815858321] [2020-10-12 19:30:32,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:30:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:32,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:32,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:32,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:32,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:32,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:32,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:32,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:33,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:33,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:33,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:33,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:33,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:33,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:37,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:37,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-12 19:30:37,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:30:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:30:37,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 19:30:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:30:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 19:30:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:30:37,788 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-12 19:30:37,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 19:30:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:37,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:37,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:37,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 19:30:37,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 19:30:37,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 19:30:37,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:37,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 19:30:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 19:30:37,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 19:30:37,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 19:30:37,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 19:30:37,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815858321] [2020-10-12 19:30:37,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 19:30:37,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 19:30:37,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834334269] [2020-10-12 19:30:37,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 19:30:37,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 19:30:37,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 19:30:37,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-12 19:30:37,810 INFO L87 Difference]: Start difference. First operand 2256 states and 3431 transitions. Second operand 14 states. [2020-10-12 19:30:37,960 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-10-12 19:30:38,511 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 168 [2020-10-12 19:30:38,855 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-10-12 19:30:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 19:30:41,944 INFO L93 Difference]: Finished difference Result 4334 states and 6611 transitions. [2020-10-12 19:30:41,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 19:30:41,945 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 53 [2020-10-12 19:30:41,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 19:30:41,955 INFO L225 Difference]: With dead ends: 4334 [2020-10-12 19:30:41,955 INFO L226 Difference]: Without dead ends: 4328 [2020-10-12 19:30:41,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 19:30:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4328 states. [2020-10-12 19:30:42,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4328 to 2256. [2020-10-12 19:30:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2256 states. [2020-10-12 19:30:42,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3429 transitions. [2020-10-12 19:30:42,536 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3429 transitions. Word has length 53 [2020-10-12 19:30:42,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 19:30:42,536 INFO L479 AbstractCegarLoop]: Abstraction has 2256 states and 3429 transitions. [2020-10-12 19:30:42,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 19:30:42,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3429 transitions. [2020-10-12 19:30:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-12 19:30:42,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 19:30:42,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 19:30:42,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 19:30:42,538 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 19:30:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 19:30:42,538 INFO L82 PathProgramCache]: Analyzing trace with hash 760828775, now seen corresponding path program 1 times [2020-10-12 19:30:42,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 19:30:42,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603109866] [2020-10-12 19:30:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 19:30:42,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 19:30:42,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:42,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:42,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:42,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:42,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:43,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:43,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:43,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:43,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:43,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:44,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:46,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 19:30:47,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 19:30:47,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-12 19:30:47,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-10-12 19:30:47,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 19:30:47,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 19:30:47,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 19:30:47,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 19:30:47,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-12 19:30:47,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0