/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/pals_lcr.4.ufo.BOUNDED-8.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:43:26,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:43:26,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:43:26,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:43:26,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:43:26,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:43:26,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:43:26,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:43:26,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:43:26,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:43:26,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:43:26,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:43:26,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:43:26,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:43:26,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:43:26,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:43:26,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:43:26,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:43:26,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:43:26,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:43:26,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:43:26,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:43:26,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:43:26,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:43:26,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:43:26,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:43:26,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:43:26,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:43:26,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:43:26,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:43:26,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:43:26,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:43:26,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:43:26,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:43:26,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:43:26,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:43:26,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:43:26,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:43:26,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:43:26,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:43:26,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:43:26,511 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 18:43:26,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:43:26,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:43:26,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:43:26,536 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:43:26,537 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:43:26,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:43:26,537 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:43:26,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:43:26,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:43:26,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:43:26,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:43:26,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:43:26,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:43:26,538 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:43:26,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:43:26,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:43:26,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:43:26,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:43:26,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:43:26,540 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:43:26,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:43:26,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:43:26,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:43:26,541 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:43:26,541 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:43:26,541 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:43:26,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:43:26,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:43:26,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:43:26,542 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 18:43:26,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:43:26,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:43:26,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:43:26,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:43:26,875 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:43:26,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-12 18:43:26,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/656486f25/123e18ef81cb4fe487579730cbf7e056/FLAG94acf205c [2020-10-12 18:43:27,454 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:43:27,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-12 18:43:27,469 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/656486f25/123e18ef81cb4fe487579730cbf7e056/FLAG94acf205c [2020-10-12 18:43:27,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/656486f25/123e18ef81cb4fe487579730cbf7e056 [2020-10-12 18:43:27,770 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:43:27,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:43:27,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:43:27,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:43:27,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:43:27,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:43:27" (1/1) ... [2020-10-12 18:43:27,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:27, skipping insertion in model container [2020-10-12 18:43:27,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:43:27" (1/1) ... [2020-10-12 18:43:27,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:43:27,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:43:28,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:43:28,097 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:43:28,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:43:28,263 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:43:28,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28 WrapperNode [2020-10-12 18:43:28,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:43:28,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:43:28,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:43:28,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:43:28,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (1/1) ... [2020-10-12 18:43:28,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (1/1) ... [2020-10-12 18:43:28,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (1/1) ... [2020-10-12 18:43:28,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (1/1) ... [2020-10-12 18:43:28,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (1/1) ... [2020-10-12 18:43:28,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (1/1) ... [2020-10-12 18:43:28,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (1/1) ... [2020-10-12 18:43:28,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:43:28,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:43:28,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:43:28,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:43:28,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (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 18:43:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:43:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:43:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:43:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:43:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:43:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:43:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:43:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:43:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:43:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:43:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:43:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:43:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:43:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:43:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:43:28,383 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:43:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:43:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:43:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:43:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:43:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:43:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:43:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:43:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:43:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:43:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:43:29,065 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:43:29,066 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:43:29,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:43:29 BoogieIcfgContainer [2020-10-12 18:43:29,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:43:29,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:43:29,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:43:29,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:43:29,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:43:27" (1/3) ... [2020-10-12 18:43:29,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a4e262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:43:29, skipping insertion in model container [2020-10-12 18:43:29,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:43:28" (2/3) ... [2020-10-12 18:43:29,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a4e262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:43:29, skipping insertion in model container [2020-10-12 18:43:29,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:43:29" (3/3) ... [2020-10-12 18:43:29,081 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.BOUNDED-8.pals.c [2020-10-12 18:43:29,092 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:43:29,100 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:43:29,115 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:43:29,139 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:43:29,139 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:43:29,139 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:43:29,139 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:43:29,140 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:43:29,140 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:43:29,140 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:43:29,140 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:43:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-12 18:43:29,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 18:43:29,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:43:29,173 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, 1, 1] [2020-10-12 18:43:29,173 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:43:29,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:43:29,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1188661361, now seen corresponding path program 1 times [2020-10-12 18:43:29,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:43:29,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012224553] [2020-10-12 18:43:29,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:43:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:29,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:29,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:29,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:43:29,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:29,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-12 18:43:29,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:29,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 18:43:29,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:29,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:43:29,950 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-12 18:43:29,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:43:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:29,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:29,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:29,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:43:29,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:29,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:43:29,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:29,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:29,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:29,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:29,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:43:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:30,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:30,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:30,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:30,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:30,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:43:30,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:30,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:30,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:30,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:43:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:30,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:30,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:30,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:30,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:30,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:43:30,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:30,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:30,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:43:30,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:43:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:30,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:30,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:30,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:30,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:43:30,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:30,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:30,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:43:30,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:43:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:30,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:30,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:30,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:30,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:43:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:30,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:30,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:43:30,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:43:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:30,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:30,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:30,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:30,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:30,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:43:30,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:30,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-12 18:43:30,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:43:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:30,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:30,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:30,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:30,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:30,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:43:30,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:43:30,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:30,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:30,269 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 18:43:30,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012224553] [2020-10-12 18:43:30,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:43:30,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 18:43:30,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179905326] [2020-10-12 18:43:30,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 18:43:30,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:43:30,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 18:43:30,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 18:43:30,299 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 7 states. [2020-10-12 18:43:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:43:31,167 INFO L93 Difference]: Finished difference Result 178 states and 257 transitions. [2020-10-12 18:43:31,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 18:43:31,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2020-10-12 18:43:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:43:31,183 INFO L225 Difference]: With dead ends: 178 [2020-10-12 18:43:31,184 INFO L226 Difference]: Without dead ends: 102 [2020-10-12 18:43:31,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:43:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-10-12 18:43:31,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-10-12 18:43:31,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-12 18:43:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 150 transitions. [2020-10-12 18:43:31,256 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 150 transitions. Word has length 56 [2020-10-12 18:43:31,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:43:31,257 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 150 transitions. [2020-10-12 18:43:31,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 18:43:31,257 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 150 transitions. [2020-10-12 18:43:31,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-12 18:43:31,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:43:31,260 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, 1, 1] [2020-10-12 18:43:31,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:43:31,260 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:43:31,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:43:31,261 INFO L82 PathProgramCache]: Analyzing trace with hash -2086054639, now seen corresponding path program 1 times [2020-10-12 18:43:31,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:43:31,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1293346325] [2020-10-12 18:43:31,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:43:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:31,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:31,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:31,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 18:43:31,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-12 18:43:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:43:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:43:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:43:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:31,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:43:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:31,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:31,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:31,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:43:31,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:31,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:43:31,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:31,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:31,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:43:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:31,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:31,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:31,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:31,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:43:31,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:43:31,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:31,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 18:43:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:31,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:31,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:31,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:31,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:31,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:43:31,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:31,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:31,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:31,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:31,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-12 18:43:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:31,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:31,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:31,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:31,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:31,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:31,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:31,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:31,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:31,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 18:43:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:31,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:31,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:31,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:31,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:31,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:43:31,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:31,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:31,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:32,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 18:43:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:32,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:32,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:32,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:32,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:32,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:43:32,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:32,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:32,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:43:32,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:32,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:43:32,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:43:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:32,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:32,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:32,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:32,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:32,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:32,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:43:32,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:32,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:32,076 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 18:43:32,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1293346325] [2020-10-12 18:43:32,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:43:32,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:43:32,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418086133] [2020-10-12 18:43:32,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:43:32,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:43:32,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:43:32,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:43:32,081 INFO L87 Difference]: Start difference. First operand 102 states and 150 transitions. Second operand 11 states. [2020-10-12 18:43:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:43:33,229 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2020-10-12 18:43:33,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:43:33,230 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-10-12 18:43:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:43:33,233 INFO L225 Difference]: With dead ends: 183 [2020-10-12 18:43:33,233 INFO L226 Difference]: Without dead ends: 112 [2020-10-12 18:43:33,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:43:33,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-12 18:43:33,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 102. [2020-10-12 18:43:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-12 18:43:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions. [2020-10-12 18:43:33,255 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 56 [2020-10-12 18:43:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:43:33,256 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions. [2020-10-12 18:43:33,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:43:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions. [2020-10-12 18:43:33,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-12 18:43:33,258 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:43:33,259 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, 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 18:43:33,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:43:33,259 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:43:33,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:43:33,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1440061290, now seen corresponding path program 1 times [2020-10-12 18:43:33,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:43:33,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042500987] [2020-10-12 18:43:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:43:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:33,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:33,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:33,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:33,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:33,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 18:43:38,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:43:38,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-12 18:43:38,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 18:43:38,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:43:38,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-12 18:43:38,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:43:38,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:43:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:38,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:43:38,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:38,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:43:38,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:38,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:38,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:38,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:43:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:38,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:43:38,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:38,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-12 18:43:38,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:43:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:38,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:43:38,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:38,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:43:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:38,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:38,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:38,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:43:38,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:38,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:38,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:38,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:43:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:38,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:38,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:38,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:43:38,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:38,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:38,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:38,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:43:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:38,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:38,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:38,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:43:38,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:38,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:38,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:38,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:43:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:43:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:38,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:38,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:38,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:43:38,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:38,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:38,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:38,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:38,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:43:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:38,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:38,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:38,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:38,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:38,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:43:38,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:38,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:43:38,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:43:38,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:43:38,981 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 18:43:38,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042500987] [2020-10-12 18:43:38,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:43:38,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:43:38,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617928817] [2020-10-12 18:43:38,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:43:38,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:43:38,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:43:38,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:43:38,987 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand 16 states. [2020-10-12 18:43:39,175 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-12 18:43:39,337 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 18:43:39,482 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 18:43:41,342 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-12 18:43:41,849 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107 [2020-10-12 18:43:42,937 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2020-10-12 18:43:45,396 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-10-12 18:43:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:43:45,850 INFO L93 Difference]: Finished difference Result 590 states and 811 transitions. [2020-10-12 18:43:45,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-10-12 18:43:45,850 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 78 [2020-10-12 18:43:45,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:43:45,860 INFO L225 Difference]: With dead ends: 590 [2020-10-12 18:43:45,861 INFO L226 Difference]: Without dead ends: 525 [2020-10-12 18:43:45,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1333 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=915, Invalid=3375, Unknown=0, NotChecked=0, Total=4290 [2020-10-12 18:43:45,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-10-12 18:43:45,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 369. [2020-10-12 18:43:45,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2020-10-12 18:43:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 503 transitions. [2020-10-12 18:43:45,923 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 503 transitions. Word has length 78 [2020-10-12 18:43:45,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:43:45,923 INFO L479 AbstractCegarLoop]: Abstraction has 369 states and 503 transitions. [2020-10-12 18:43:45,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:43:45,924 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 503 transitions. [2020-10-12 18:43:45,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:43:45,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:43:45,927 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, 1, 1, 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 18:43:45,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:43:45,928 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:43:45,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:43:45,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1024777146, now seen corresponding path program 1 times [2020-10-12 18:43:45,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:43:45,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044131202] [2020-10-12 18:43:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:43:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:46,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:46,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:46,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:46,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:49,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:50,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:50,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:43:50,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:43:50,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:43:50,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:43:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:43:50,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 18:43:50,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:51,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:43:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:51,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:51,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:43:51,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:51,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:51,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:51,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:51,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:51,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:43:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:51,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:51,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:43:51,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:51,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:43:51,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:51,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:51,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:51,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:43:51,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:43:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:43:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:51,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:51,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:51,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:43:51,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:43:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:51,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:51,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:51,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:43:51,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:51,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:51,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:51,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:51,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:51,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:51,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:43:51,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:51,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:43:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:51,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:51,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:51,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:51,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:51,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:51,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:43:51,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:51,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:43:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:51,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:51,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:51,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:51,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:51,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:51,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:51,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:51,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:43:51,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:51,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:43:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:51,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:51,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:51,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:43:51,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:43:51,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:43:51,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:43:51,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:43:51,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:51,311 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 18:43:51,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044131202] [2020-10-12 18:43:51,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:43:51,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 18:43:51,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654289018] [2020-10-12 18:43:51,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 18:43:51,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:43:51,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 18:43:51,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-12 18:43:51,313 INFO L87 Difference]: Start difference. First operand 369 states and 503 transitions. Second operand 12 states. [2020-10-12 18:43:53,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:43:53,908 INFO L93 Difference]: Finished difference Result 1584 states and 2216 transitions. [2020-10-12 18:43:53,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-12 18:43:53,912 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-12 18:43:53,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:43:53,923 INFO L225 Difference]: With dead ends: 1584 [2020-10-12 18:43:53,923 INFO L226 Difference]: Without dead ends: 1252 [2020-10-12 18:43:53,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2020-10-12 18:43:53,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-10-12 18:43:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1246. [2020-10-12 18:43:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2020-10-12 18:43:54,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1702 transitions. [2020-10-12 18:43:54,055 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1702 transitions. Word has length 80 [2020-10-12 18:43:54,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:43:54,055 INFO L479 AbstractCegarLoop]: Abstraction has 1246 states and 1702 transitions. [2020-10-12 18:43:54,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 18:43:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1702 transitions. [2020-10-12 18:43:54,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:43:54,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:43:54,058 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, 1, 1, 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 18:43:54,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:43:54,059 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:43:54,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:43:54,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1516632928, now seen corresponding path program 1 times [2020-10-12 18:43:54,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:43:54,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311389842] [2020-10-12 18:43:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:43:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:54,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:54,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:54,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:54,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:54,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:56,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:56,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:43:59,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:43:59,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-12 18:43:59,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:43:59,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:43:59,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:43:59,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:43:59,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:43:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:59,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:43:59,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:59,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:43:59,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:43:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:59,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:43:59,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:59,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:43:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:59,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:43:59,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:59,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:43:59,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:59,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:59,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:43:59,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:59,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:43:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:59,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:59,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:59,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:43:59,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:59,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:59,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:59,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:59,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:43:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:59,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:59,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:59,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:43:59,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:59,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:59,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:59,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:43:59,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:43:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:59,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:43:59,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:59,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:43:59,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:43:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:43:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:43:59,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:59,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:43:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:59,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:43:59,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:59,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:43:59,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:43:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:43:59,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:43:59,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:59,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:43:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:43:59,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:43:59,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:43:59,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:43:59,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:43:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:43:59,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:43:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:43:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:43:59,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:43:59,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:43:59,579 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 18:43:59,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311389842] [2020-10-12 18:43:59,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:43:59,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:43:59,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471505888] [2020-10-12 18:43:59,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:43:59,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:43:59,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:43:59,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:43:59,582 INFO L87 Difference]: Start difference. First operand 1246 states and 1702 transitions. Second operand 16 states. [2020-10-12 18:43:59,814 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:44:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:44:06,959 INFO L93 Difference]: Finished difference Result 3166 states and 4553 transitions. [2020-10-12 18:44:06,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-12 18:44:06,965 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-12 18:44:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:44:06,980 INFO L225 Difference]: With dead ends: 3166 [2020-10-12 18:44:06,980 INFO L226 Difference]: Without dead ends: 2201 [2020-10-12 18:44:06,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1789 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1206, Invalid=4494, Unknown=0, NotChecked=0, Total=5700 [2020-10-12 18:44:06,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2020-10-12 18:44:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 1929. [2020-10-12 18:44:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1929 states. [2020-10-12 18:44:07,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2638 transitions. [2020-10-12 18:44:07,136 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2638 transitions. Word has length 80 [2020-10-12 18:44:07,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:44:07,137 INFO L479 AbstractCegarLoop]: Abstraction has 1929 states and 2638 transitions. [2020-10-12 18:44:07,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:44:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2638 transitions. [2020-10-12 18:44:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:44:07,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:44:07,140 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, 1, 1, 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 18:44:07,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:44:07,140 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:44:07,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:44:07,141 INFO L82 PathProgramCache]: Analyzing trace with hash 763866700, now seen corresponding path program 1 times [2020-10-12 18:44:07,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:44:07,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895783558] [2020-10-12 18:44:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:44:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:07,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:07,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:07,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:07,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:07,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:07,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:08,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:44:12,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:44:12,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:44:12,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:44:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:44:12,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:44:12,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:12,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:44:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:12,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:44:12,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:12,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:44:12,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:12,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:12,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:12,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:44:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:12,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:44:12,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:12,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:44:12,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:12,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:44:12,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:12,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:44:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:12,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:12,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:12,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:44:12,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:12,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:12,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:12,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:12,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:44:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:12,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:12,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:44:12,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:12,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:44:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:12,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:44:12,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:12,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:44:12,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:44:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:44:12,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:12,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:44:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:12,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:12,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:44:12,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:12,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:44:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:12,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:12,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:12,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:44:12,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:12,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:44:12,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:44:12,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:44:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:44:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:12,688 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 18:44:12,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895783558] [2020-10-12 18:44:12,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:44:12,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:44:12,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447823760] [2020-10-12 18:44:12,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:44:12,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:44:12,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:44:12,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:44:12,693 INFO L87 Difference]: Start difference. First operand 1929 states and 2638 transitions. Second operand 16 states. [2020-10-12 18:44:12,923 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2020-10-12 18:44:19,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:44:19,279 INFO L93 Difference]: Finished difference Result 4149 states and 5817 transitions. [2020-10-12 18:44:19,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-10-12 18:44:19,280 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-12 18:44:19,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:44:19,297 INFO L225 Difference]: With dead ends: 4149 [2020-10-12 18:44:19,297 INFO L226 Difference]: Without dead ends: 2754 [2020-10-12 18:44:19,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1410 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1015, Invalid=3815, Unknown=0, NotChecked=0, Total=4830 [2020-10-12 18:44:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2020-10-12 18:44:19,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2407. [2020-10-12 18:44:19,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2407 states. [2020-10-12 18:44:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 3294 transitions. [2020-10-12 18:44:19,489 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 3294 transitions. Word has length 80 [2020-10-12 18:44:19,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:44:19,490 INFO L479 AbstractCegarLoop]: Abstraction has 2407 states and 3294 transitions. [2020-10-12 18:44:19,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:44:19,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 3294 transitions. [2020-10-12 18:44:19,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:44:19,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:44:19,492 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, 1, 1, 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 18:44:19,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:44:19,493 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:44:19,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:44:19,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1942396224, now seen corresponding path program 1 times [2020-10-12 18:44:19,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:44:19,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714941853] [2020-10-12 18:44:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:44:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:19,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:19,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:19,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:19,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:21,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:21,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:44:24,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:44:24,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:44:24,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:44:24,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:44:24,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-12 18:44:24,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:44:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:24,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:44:24,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:24,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:44:24,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:24,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:24,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:24,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:44:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:24,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:44:24,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:24,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:44:24,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:44:24,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:44:24,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:24,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:24,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:24,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:44:24,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:24,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:24,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:44:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:24,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:44:24,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:24,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:44:24,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:44:24,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:24,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:44:24,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:44:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:24,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:24,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:24,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:44:24,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:24,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:24,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:44:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:24,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:24,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:24,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:44:24,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:24,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:44:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:24,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:24,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:24,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:44:24,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:24,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:44:24,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:44:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:44:24,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:44:24,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:24,937 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 18:44:24,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714941853] [2020-10-12 18:44:24,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:44:24,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:44:24,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948159100] [2020-10-12 18:44:24,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:44:24,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:44:24,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:44:24,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:44:24,939 INFO L87 Difference]: Start difference. First operand 2407 states and 3294 transitions. Second operand 16 states. [2020-10-12 18:44:25,182 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2020-10-12 18:44:30,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:44:30,785 INFO L93 Difference]: Finished difference Result 4693 states and 6419 transitions. [2020-10-12 18:44:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-10-12 18:44:30,785 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-12 18:44:30,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:44:30,804 INFO L225 Difference]: With dead ends: 4693 [2020-10-12 18:44:30,805 INFO L226 Difference]: Without dead ends: 3700 [2020-10-12 18:44:30,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=894, Invalid=3396, Unknown=0, NotChecked=0, Total=4290 [2020-10-12 18:44:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3700 states. [2020-10-12 18:44:31,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3700 to 3385. [2020-10-12 18:44:31,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3385 states. [2020-10-12 18:44:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 4629 transitions. [2020-10-12 18:44:31,137 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 4629 transitions. Word has length 80 [2020-10-12 18:44:31,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:44:31,139 INFO L479 AbstractCegarLoop]: Abstraction has 3385 states and 4629 transitions. [2020-10-12 18:44:31,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:44:31,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 4629 transitions. [2020-10-12 18:44:31,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 18:44:31,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:44:31,148 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, 1, 1, 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 18:44:31,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:44:31,148 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:44:31,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:44:31,149 INFO L82 PathProgramCache]: Analyzing trace with hash 770113516, now seen corresponding path program 1 times [2020-10-12 18:44:31,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:44:31,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2136338812] [2020-10-12 18:44:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:44:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:31,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:31,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:31,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:31,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:31,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:32,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:32,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-12 18:44:36,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:44:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:44:36,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 18:44:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 18:44:36,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-12 18:44:36,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:36,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:44:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:36,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:44:36,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:36,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:44:36,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:36,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:36,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:36,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:36,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:44:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:36,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:44:36,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:36,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 18:44:36,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:36,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 18:44:36,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:44:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:36,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:44:36,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:36,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:44:36,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:44:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:44:36,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:44:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:36,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:36,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:44:36,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:36,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:36,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:44:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:36,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:36,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:36,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:44:36,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:36,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:36,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:36,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:36,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:44:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:36,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:36,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:36,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:44:36,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:36,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:44:36,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:36,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:44:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:36,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:36,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:36,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:44:36,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:36,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:44:36,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:36,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:44:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:44:36,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:44:36,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:36,716 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 18:44:36,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2136338812] [2020-10-12 18:44:36,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:44:36,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:44:36,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262879130] [2020-10-12 18:44:36,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:44:36,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:44:36,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:44:36,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:44:36,724 INFO L87 Difference]: Start difference. First operand 3385 states and 4629 transitions. Second operand 16 states. [2020-10-12 18:44:42,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:44:42,656 INFO L93 Difference]: Finished difference Result 5336 states and 7363 transitions. [2020-10-12 18:44:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-12 18:44:42,657 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 80 [2020-10-12 18:44:42,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:44:42,681 INFO L225 Difference]: With dead ends: 5336 [2020-10-12 18:44:42,681 INFO L226 Difference]: Without dead ends: 4878 [2020-10-12 18:44:42,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1289 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=954, Invalid=3336, Unknown=0, NotChecked=0, Total=4290 [2020-10-12 18:44:42,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2020-10-12 18:44:42,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 4468. [2020-10-12 18:44:42,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4468 states. [2020-10-12 18:44:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 6114 transitions. [2020-10-12 18:44:43,004 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 6114 transitions. Word has length 80 [2020-10-12 18:44:43,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:44:43,004 INFO L479 AbstractCegarLoop]: Abstraction has 4468 states and 6114 transitions. [2020-10-12 18:44:43,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:44:43,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 6114 transitions. [2020-10-12 18:44:43,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-12 18:44:43,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:44:43,007 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, 1, 1, 1, 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 18:44:43,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:44:43,007 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:44:43,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:44:43,008 INFO L82 PathProgramCache]: Analyzing trace with hash 334634305, now seen corresponding path program 1 times [2020-10-12 18:44:43,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:44:43,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63680061] [2020-10-12 18:44:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:44:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:43,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:43,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:43,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:43,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:43,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 18:44:48,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:44:48,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:44:48,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:44:48,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-12 18:44:48,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:44:48,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:48,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:44:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:48,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:44:48,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:48,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 18:44:48,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:48,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:48,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:48,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:48,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:44:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:48,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:44:48,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:48,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:44:48,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:48,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:48,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:48,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:48,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:44:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:48,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:48,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:48,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:44:48,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:48,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:48,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:44:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:48,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:48,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:44:48,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:48,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:48,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:48,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:44:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:48,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:48,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:48,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:44:48,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:48,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:48,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:48,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:48,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:44:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:48,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:48,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:48,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:44:48,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:48,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:48,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:48,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:44:48,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:44:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:48,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:48,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:48,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:44:48,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:48,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:44:48,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:48,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:44:48,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:48,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-12 18:44:48,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:48,398 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 18:44:48,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63680061] [2020-10-12 18:44:48,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:44:48,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-12 18:44:48,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766087214] [2020-10-12 18:44:48,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 18:44:48,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:44:48,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 18:44:48,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-12 18:44:48,401 INFO L87 Difference]: Start difference. First operand 4468 states and 6114 transitions. Second operand 13 states. [2020-10-12 18:44:49,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:44:49,963 INFO L93 Difference]: Finished difference Result 5151 states and 7269 transitions. [2020-10-12 18:44:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:44:49,964 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 81 [2020-10-12 18:44:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:44:49,991 INFO L225 Difference]: With dead ends: 5151 [2020-10-12 18:44:49,991 INFO L226 Difference]: Without dead ends: 5149 [2020-10-12 18:44:49,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-12 18:44:50,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5149 states. [2020-10-12 18:44:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5149 to 4765. [2020-10-12 18:44:50,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4765 states. [2020-10-12 18:44:50,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4765 states to 4765 states and 6418 transitions. [2020-10-12 18:44:50,359 INFO L78 Accepts]: Start accepts. Automaton has 4765 states and 6418 transitions. Word has length 81 [2020-10-12 18:44:50,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:44:50,360 INFO L479 AbstractCegarLoop]: Abstraction has 4765 states and 6418 transitions. [2020-10-12 18:44:50,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 18:44:50,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4765 states and 6418 transitions. [2020-10-12 18:44:50,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:44:50,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:44:50,362 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, 1, 1, 1, 1, 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 18:44:50,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:44:50,363 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:44:50,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:44:50,364 INFO L82 PathProgramCache]: Analyzing trace with hash 97281240, now seen corresponding path program 1 times [2020-10-12 18:44:50,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:44:50,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668049580] [2020-10-12 18:44:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:44:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:50,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:50,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:50,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:50,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:51,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:51,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-12 18:44:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:44:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:55,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:44:55,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:44:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:55,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:44:55,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:55,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:44:55,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:44:55,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:55,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:44:55,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:44:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:55,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:55,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:55,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:44:55,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:44:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:55,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:44:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:44:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:55,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:55,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:55,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:44:55,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:44:55,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:55,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:44:55,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:44:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:44:55,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:44:55,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:44:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:44:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:44:55,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:44:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:55,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:44:55,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:55,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:44:55,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:44:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:44:55,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:44:55,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:44:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:55,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:55,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:44:55,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:44:55,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:44:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:44:55,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:44:55,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:44:55,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:44:55,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:44:55,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:44:55,774 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 18:44:55,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668049580] [2020-10-12 18:44:55,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:44:55,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:44:55,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421409991] [2020-10-12 18:44:55,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:44:55,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:44:55,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:44:55,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:44:55,776 INFO L87 Difference]: Start difference. First operand 4765 states and 6418 transitions. Second operand 14 states. [2020-10-12 18:44:56,009 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-12 18:44:56,568 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-12 18:44:57,323 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 107 [2020-10-12 18:44:57,488 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-10-12 18:44:57,958 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2020-10-12 18:44:58,419 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-10-12 18:44:58,619 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2020-10-12 18:44:58,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:44:58,986 INFO L93 Difference]: Finished difference Result 10414 states and 13836 transitions. [2020-10-12 18:44:58,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:44:58,986 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-12 18:44:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:44:59,013 INFO L225 Difference]: With dead ends: 10414 [2020-10-12 18:44:59,013 INFO L226 Difference]: Without dead ends: 5686 [2020-10-12 18:44:59,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:44:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2020-10-12 18:44:59,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 5004. [2020-10-12 18:44:59,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2020-10-12 18:44:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6740 transitions. [2020-10-12 18:44:59,378 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6740 transitions. Word has length 82 [2020-10-12 18:44:59,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:44:59,378 INFO L479 AbstractCegarLoop]: Abstraction has 5004 states and 6740 transitions. [2020-10-12 18:44:59,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:44:59,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6740 transitions. [2020-10-12 18:44:59,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:44:59,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:44:59,385 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, 1, 1, 1, 1, 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 18:44:59,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:44:59,386 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:44:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:44:59,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1756558140, now seen corresponding path program 1 times [2020-10-12 18:44:59,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:44:59,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052379246] [2020-10-12 18:44:59,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:44:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:44:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:59,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:59,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:44:59,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:00,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:45:04,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:45:04,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:45:04,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:45:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:45:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:45:04,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:04,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:04,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:04,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:04,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:04,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:45:04,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:04,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:45:04,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:04,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:45:04,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:45:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:45:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:45:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:04,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:04,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:04,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:04,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:04,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:45:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:04,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:04,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:04,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:04,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:04,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:04,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:45:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:04,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:04,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:04,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:04,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:45:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:04,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:45:04,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:45:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:04,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:04,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:04,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:04,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:04,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:04,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:45:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:04,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:04,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:04,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:45:04,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:45:04,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:45:04,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:04,738 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 18:45:04,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052379246] [2020-10-12 18:45:04,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:45:04,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:45:04,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770131104] [2020-10-12 18:45:04,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:45:04,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:04,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:45:04,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:45:04,739 INFO L87 Difference]: Start difference. First operand 5004 states and 6740 transitions. Second operand 14 states. [2020-10-12 18:45:04,944 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-12 18:45:05,402 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-12 18:45:05,889 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-12 18:45:07,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:07,296 INFO L93 Difference]: Finished difference Result 11192 states and 14997 transitions. [2020-10-12 18:45:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:45:07,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-12 18:45:07,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:07,319 INFO L225 Difference]: With dead ends: 11192 [2020-10-12 18:45:07,319 INFO L226 Difference]: Without dead ends: 6320 [2020-10-12 18:45:07,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:45:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6320 states. [2020-10-12 18:45:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6320 to 5158. [2020-10-12 18:45:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5158 states. [2020-10-12 18:45:07,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5158 states to 5158 states and 6949 transitions. [2020-10-12 18:45:07,625 INFO L78 Accepts]: Start accepts. Automaton has 5158 states and 6949 transitions. Word has length 82 [2020-10-12 18:45:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:07,625 INFO L479 AbstractCegarLoop]: Abstraction has 5158 states and 6949 transitions. [2020-10-12 18:45:07,625 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:45:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5158 states and 6949 transitions. [2020-10-12 18:45:07,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:45:07,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:07,627 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, 1, 1, 1, 1, 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 18:45:07,627 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 18:45:07,627 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:07,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:07,627 INFO L82 PathProgramCache]: Analyzing trace with hash 274953272, now seen corresponding path program 1 times [2020-10-12 18:45:07,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:07,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906893850] [2020-10-12 18:45:07,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:07,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:07,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:07,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:07,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:07,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:12,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-12 18:45:12,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:12,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:12,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:12,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:12,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:12,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:12,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:12,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:12,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:45:12,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:12,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:12,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:12,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:12,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:45:12,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:45:12,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:45:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:12,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:45:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:12,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:45:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:12,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:12,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:12,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:12,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:12,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:12,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:12,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:12,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:45:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:12,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:12,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:12,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:12,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:12,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:12,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:12,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:45:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:12,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:45:12,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:12,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:45:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:12,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:12,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:12,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:12,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:12,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:12,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:12,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:12,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:12,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:45:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:12,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:13,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:13,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:13,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:45:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:13,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:13,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:13,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:45:13,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:13,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:45:13,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:45:13,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:13,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:13,015 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 18:45:13,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906893850] [2020-10-12 18:45:13,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:45:13,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:45:13,016 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901942966] [2020-10-12 18:45:13,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:45:13,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:13,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:45:13,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:45:13,017 INFO L87 Difference]: Start difference. First operand 5158 states and 6949 transitions. Second operand 14 states. [2020-10-12 18:45:13,233 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-12 18:45:13,720 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-12 18:45:14,085 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-12 18:45:15,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:15,790 INFO L93 Difference]: Finished difference Result 12541 states and 16908 transitions. [2020-10-12 18:45:15,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:45:15,790 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-12 18:45:15,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:15,829 INFO L225 Difference]: With dead ends: 12541 [2020-10-12 18:45:15,829 INFO L226 Difference]: Without dead ends: 7455 [2020-10-12 18:45:15,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:45:15,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7455 states. [2020-10-12 18:45:16,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7455 to 5443. [2020-10-12 18:45:16,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5443 states. [2020-10-12 18:45:16,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 7353 transitions. [2020-10-12 18:45:16,155 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 7353 transitions. Word has length 82 [2020-10-12 18:45:16,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:16,155 INFO L479 AbstractCegarLoop]: Abstraction has 5443 states and 7353 transitions. [2020-10-12 18:45:16,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:45:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 7353 transitions. [2020-10-12 18:45:16,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-12 18:45:16,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:16,156 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, 1, 1, 1, 1, 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 18:45:16,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 18:45:16,156 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:16,157 INFO L82 PathProgramCache]: Analyzing trace with hash -48335260, now seen corresponding path program 1 times [2020-10-12 18:45:16,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:16,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580559121] [2020-10-12 18:45:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:16,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:16,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:16,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:16,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:16,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:16,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-12 18:45:21,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:45:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-12 18:45:21,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:45:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:45:21,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-12 18:45:21,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:21,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:21,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:21,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:21,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:45:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:21,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:45:21,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:21,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:21,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:45:21,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:21,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:45:21,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:45:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:21,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:21,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:21,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:45:21,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:45:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:21,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:45:21,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-12 18:45:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:21,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:21,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:21,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:21,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:21,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:21,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:21,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-12 18:45:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:21,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:21,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:21,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:21,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-12 18:45:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:21,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:21,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:21,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:21,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:21,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:45:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:21,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:21,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:21,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:45:21,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:21,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:45:21,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:21,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:21,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:45:21,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:21,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:21,494 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 18:45:21,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580559121] [2020-10-12 18:45:21,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:45:21,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-12 18:45:21,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638259570] [2020-10-12 18:45:21,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:45:21,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:21,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:45:21,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:45:21,495 INFO L87 Difference]: Start difference. First operand 5443 states and 7353 transitions. Second operand 14 states. [2020-10-12 18:45:21,700 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 102 [2020-10-12 18:45:22,153 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2020-10-12 18:45:22,337 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2020-10-12 18:45:24,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:24,003 INFO L93 Difference]: Finished difference Result 11732 states and 16000 transitions. [2020-10-12 18:45:24,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 18:45:24,006 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 82 [2020-10-12 18:45:24,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:24,024 INFO L225 Difference]: With dead ends: 11732 [2020-10-12 18:45:24,024 INFO L226 Difference]: Without dead ends: 7329 [2020-10-12 18:45:24,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=275, Invalid=717, Unknown=0, NotChecked=0, Total=992 [2020-10-12 18:45:24,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2020-10-12 18:45:24,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 5439. [2020-10-12 18:45:24,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5439 states. [2020-10-12 18:45:24,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 7360 transitions. [2020-10-12 18:45:24,441 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 7360 transitions. Word has length 82 [2020-10-12 18:45:24,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:24,442 INFO L479 AbstractCegarLoop]: Abstraction has 5439 states and 7360 transitions. [2020-10-12 18:45:24,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:45:24,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 7360 transitions. [2020-10-12 18:45:24,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 18:45:24,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:24,446 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:24,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 18:45:24,446 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:24,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:24,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1553319455, now seen corresponding path program 1 times [2020-10-12 18:45:24,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:24,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484125281] [2020-10-12 18:45:24,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:24,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:24,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:24,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:24,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:24,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:24,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 18:45:29,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:45:29,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-12 18:45:29,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-12 18:45:29,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 18:45:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:45:29,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:29,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:29,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:45:29,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:29,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:29,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:45:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:29,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:29,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:45:29,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:45:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:45:29,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:29,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:29,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:45:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:29,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:29,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:45:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:29,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:29,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:29,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:45:29,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:45:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:45:29,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:45:29,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:29,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:45:29,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:45:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:29,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:29,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:29,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:29,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:45:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:29,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:45:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:29,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:29,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:29,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:45:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:29,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:29,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:29,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:29,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:45:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:29,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:29,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:29,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:29,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:29,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:45:29,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:29,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-12 18:45:29,784 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484125281] [2020-10-12 18:45:29,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:45:29,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:45:29,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491433354] [2020-10-12 18:45:29,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:45:29,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:29,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:45:29,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:45:29,786 INFO L87 Difference]: Start difference. First operand 5439 states and 7360 transitions. Second operand 10 states. [2020-10-12 18:45:31,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:31,401 INFO L93 Difference]: Finished difference Result 14825 states and 20145 transitions. [2020-10-12 18:45:31,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:45:31,401 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2020-10-12 18:45:31,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:31,430 INFO L225 Difference]: With dead ends: 14825 [2020-10-12 18:45:31,431 INFO L226 Difference]: Without dead ends: 9486 [2020-10-12 18:45:31,442 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:45:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9486 states. [2020-10-12 18:45:32,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9486 to 9336. [2020-10-12 18:45:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9336 states. [2020-10-12 18:45:32,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9336 states to 9336 states and 12463 transitions. [2020-10-12 18:45:32,088 INFO L78 Accepts]: Start accepts. Automaton has 9336 states and 12463 transitions. Word has length 127 [2020-10-12 18:45:32,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:32,088 INFO L479 AbstractCegarLoop]: Abstraction has 9336 states and 12463 transitions. [2020-10-12 18:45:32,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:45:32,088 INFO L276 IsEmpty]: Start isEmpty. Operand 9336 states and 12463 transitions. [2020-10-12 18:45:32,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 18:45:32,094 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:32,094 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:32,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 18:45:32,095 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:32,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:32,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1535250645, now seen corresponding path program 1 times [2020-10-12 18:45:32,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:32,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108213182] [2020-10-12 18:45:32,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:32,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 18:45:37,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:45:37,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:45:37,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:37,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-12 18:45:37,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-12 18:45:37,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:37,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:37,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:37,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 18:45:37,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:45:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:45:37,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:37,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:45:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:37,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:45:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:45:37,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:45:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:37,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:37,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:45:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:45:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:37,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:37,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:45:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:45:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:45:37,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:45:37,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-12 18:45:37,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:45:37,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:37,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:37,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:45:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:37,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:37,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:45:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:45:37,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:37,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:45:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:37,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:37,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:45:37,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:45:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:37,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:37,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:37,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:37,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:37,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:37,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:45:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:37,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-12 18:45:37,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108213182] [2020-10-12 18:45:37,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:45:37,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 18:45:37,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369171927] [2020-10-12 18:45:37,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 18:45:37,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:37,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 18:45:37,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-12 18:45:37,445 INFO L87 Difference]: Start difference. First operand 9336 states and 12463 transitions. Second operand 10 states. [2020-10-12 18:45:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:39,653 INFO L93 Difference]: Finished difference Result 26199 states and 35163 transitions. [2020-10-12 18:45:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 18:45:39,656 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 127 [2020-10-12 18:45:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:39,710 INFO L225 Difference]: With dead ends: 26199 [2020-10-12 18:45:39,710 INFO L226 Difference]: Without dead ends: 16954 [2020-10-12 18:45:39,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-12 18:45:39,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16954 states. [2020-10-12 18:45:40,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16954 to 16661. [2020-10-12 18:45:40,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16661 states. [2020-10-12 18:45:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16661 states to 16661 states and 21954 transitions. [2020-10-12 18:45:40,817 INFO L78 Accepts]: Start accepts. Automaton has 16661 states and 21954 transitions. Word has length 127 [2020-10-12 18:45:40,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:40,817 INFO L479 AbstractCegarLoop]: Abstraction has 16661 states and 21954 transitions. [2020-10-12 18:45:40,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 18:45:40,818 INFO L276 IsEmpty]: Start isEmpty. Operand 16661 states and 21954 transitions. [2020-10-12 18:45:40,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 18:45:40,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:40,825 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:40,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 18:45:40,826 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:40,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:40,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1107281247, now seen corresponding path program 1 times [2020-10-12 18:45:40,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:40,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [374300086] [2020-10-12 18:45:40,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:40,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:40,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:40,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:40,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:40,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:44,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:45,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-12 18:45:45,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:45,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:45:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:45,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:45,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:45,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:45:45,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:45,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:45,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:45,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:45:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:45,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:45,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:45,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:45:45,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:45:45,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:45,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:45:45,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:45:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:45:46,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:45:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:46,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:46,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:45:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:45:46,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:45:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:46,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:46,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,271 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 30 [2020-10-12 18:45:46,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:45:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:46,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:46,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:45:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:46,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:46,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:45:46,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:45:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:45:46,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:45:46,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:45:46,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:45:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:46,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:45:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:46,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:45:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:45:46,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:45:46,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:45:46,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:45:46,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:45:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:45:46,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:45:46,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:45:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:45:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:45:46,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:45:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:46,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:46,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:45:46,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:45:46,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:45:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:45:46,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:45:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:45:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-12 18:45:46,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:45:46,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:45:46,450 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 18:45:46,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [374300086] [2020-10-12 18:45:46,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:45:46,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-12 18:45:46,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075898075] [2020-10-12 18:45:46,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:45:46,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:45:46,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:45:46,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:45:46,452 INFO L87 Difference]: Start difference. First operand 16661 states and 21954 transitions. Second operand 16 states. [2020-10-12 18:45:47,409 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2020-10-12 18:45:49,007 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2020-10-12 18:45:51,188 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:45:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:45:52,970 INFO L93 Difference]: Finished difference Result 69321 states and 91272 transitions. [2020-10-12 18:45:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-12 18:45:52,972 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 127 [2020-10-12 18:45:52,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:45:54,358 INFO L225 Difference]: With dead ends: 69321 [2020-10-12 18:45:54,358 INFO L226 Difference]: Without dead ends: 52795 [2020-10-12 18:45:54,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 748 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=559, Invalid=2303, Unknown=0, NotChecked=0, Total=2862 [2020-10-12 18:45:54,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52795 states. [2020-10-12 18:45:58,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52795 to 50685. [2020-10-12 18:45:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50685 states. [2020-10-12 18:45:58,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50685 states to 50685 states and 66629 transitions. [2020-10-12 18:45:58,146 INFO L78 Accepts]: Start accepts. Automaton has 50685 states and 66629 transitions. Word has length 127 [2020-10-12 18:45:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:45:58,147 INFO L479 AbstractCegarLoop]: Abstraction has 50685 states and 66629 transitions. [2020-10-12 18:45:58,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:45:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 50685 states and 66629 transitions. [2020-10-12 18:45:58,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-12 18:45:58,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:45:58,166 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:58,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 18:45:58,166 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:45:58,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:45:58,167 INFO L82 PathProgramCache]: Analyzing trace with hash 1601083755, now seen corresponding path program 1 times [2020-10-12 18:45:58,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:45:58,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643515687] [2020-10-12 18:45:58,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:45:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:45:58,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:45:58,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:02,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:02,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-12 18:46:03,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:03,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:46:03,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:03,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:46:03,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:46:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:03,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:46:03,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:03,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:03,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:46:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:03,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:03,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:46:03,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:03,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:03,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:46:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:03,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:03,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:46:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:46:03,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:03,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:46:03,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:46:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:03,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:03,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:46:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:46:03,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:46:03,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:03,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:03,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:46:03,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:03,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:03,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:46:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:03,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:03,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:46:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:03,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:03,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:03,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:03,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-12 18:46:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:03,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:03,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:03,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:46:03,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:46:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:46:03,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:46:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:03,661 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-10-12 18:46:03,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643515687] [2020-10-12 18:46:03,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:46:03,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-12 18:46:03,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895941452] [2020-10-12 18:46:03,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-12 18:46:03,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:03,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-12 18:46:03,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-12 18:46:03,663 INFO L87 Difference]: Start difference. First operand 50685 states and 66629 transitions. Second operand 14 states. [2020-10-12 18:46:04,031 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2020-10-12 18:46:07,079 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-12 18:46:10,087 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2020-10-12 18:46:14,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:46:14,476 INFO L93 Difference]: Finished difference Result 96127 states and 126975 transitions. [2020-10-12 18:46:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-12 18:46:14,476 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 127 [2020-10-12 18:46:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:46:14,695 INFO L225 Difference]: With dead ends: 96127 [2020-10-12 18:46:14,695 INFO L226 Difference]: Without dead ends: 66945 [2020-10-12 18:46:14,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=373, Invalid=1267, Unknown=0, NotChecked=0, Total=1640 [2020-10-12 18:46:14,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66945 states. [2020-10-12 18:46:21,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66945 to 66421. [2020-10-12 18:46:21,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66421 states. [2020-10-12 18:46:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66421 states to 66421 states and 87407 transitions. [2020-10-12 18:46:21,887 INFO L78 Accepts]: Start accepts. Automaton has 66421 states and 87407 transitions. Word has length 127 [2020-10-12 18:46:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:46:21,888 INFO L479 AbstractCegarLoop]: Abstraction has 66421 states and 87407 transitions. [2020-10-12 18:46:21,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-12 18:46:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 66421 states and 87407 transitions. [2020-10-12 18:46:21,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-12 18:46:21,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:21,899 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:21,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 18:46:21,899 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:21,900 INFO L82 PathProgramCache]: Analyzing trace with hash -2121861673, now seen corresponding path program 1 times [2020-10-12 18:46:21,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:21,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211410605] [2020-10-12 18:46:21,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:21,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:21,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:21,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:22,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:22,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:25,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:26,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-12 18:46:26,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:27,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:46:27,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:27,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:46:27,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:46:27,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-12 18:46:27,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:46:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:27,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:27,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:27,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:46:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:27,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:46:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:27,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:27,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 18:46:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:27,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:27,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:46:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:27,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:27,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:27,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:46:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:46:27,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:27,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:46:27,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:27,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:46:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:27,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:46:27,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:27,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:46:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:27,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:46:27,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:46:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:27,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:46:27,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:27,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:27,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:46:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:27,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:46:27,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:27,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:27,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:27,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-12 18:46:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:46:27,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:46:27,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:46:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:27,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:46:27,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:27,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:46:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:27,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:27,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:27,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:46:27,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:27,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:46:27,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:46:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:27,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 18:46:27,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211410605] [2020-10-12 18:46:27,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:46:27,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-12 18:46:27,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061065169] [2020-10-12 18:46:27,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-12 18:46:27,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:27,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-12 18:46:27,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:46:27,470 INFO L87 Difference]: Start difference. First operand 66421 states and 87407 transitions. Second operand 19 states. [2020-10-12 18:46:36,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:46:36,284 INFO L93 Difference]: Finished difference Result 121120 states and 158573 transitions. [2020-10-12 18:46:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-12 18:46:36,285 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 128 [2020-10-12 18:46:36,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:46:36,517 INFO L225 Difference]: With dead ends: 121120 [2020-10-12 18:46:36,517 INFO L226 Difference]: Without dead ends: 69969 [2020-10-12 18:46:36,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=773, Invalid=3009, Unknown=0, NotChecked=0, Total=3782 [2020-10-12 18:46:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69969 states. [2020-10-12 18:46:43,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69969 to 66165. [2020-10-12 18:46:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66165 states. [2020-10-12 18:46:43,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66165 states to 66165 states and 86616 transitions. [2020-10-12 18:46:43,796 INFO L78 Accepts]: Start accepts. Automaton has 66165 states and 86616 transitions. Word has length 128 [2020-10-12 18:46:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:46:43,796 INFO L479 AbstractCegarLoop]: Abstraction has 66165 states and 86616 transitions. [2020-10-12 18:46:43,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-12 18:46:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 66165 states and 86616 transitions. [2020-10-12 18:46:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-12 18:46:43,809 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:46:43,809 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:43,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 18:46:43,810 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:46:43,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:46:43,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1515011513, now seen corresponding path program 1 times [2020-10-12 18:46:43,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:46:43,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1596991517] [2020-10-12 18:46:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:46:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:43,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:43,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:43,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:43,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:43,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:44,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:44,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:48,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:48,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-12 18:46:48,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-12 18:46:48,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-12 18:46:48,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-12 18:46:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 18:46:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-12 18:46:48,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:48,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:46:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:48,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:48,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:48,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:46:48,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:48,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:48,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:48,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:48,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:46:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:48,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:48,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-12 18:46:48,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:48,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:46:48,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 18:46:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 18:46:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:49,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:46:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-12 18:46:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:49,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:46:49,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:46:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:49,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:49,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-12 18:46:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:49,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:46:49,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:46:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:49,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:46:49,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-12 18:46:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:49,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:49,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:49,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:49,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-12 18:46:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:46:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:49,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:46:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:46:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:46:49,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:46:49,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:49,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:49,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:46:49,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-12 18:46:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:49,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:46:49,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:49,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-12 18:46:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:49,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:46:49,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:46:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:46:49,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:46:49,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-12 18:46:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:46:49,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:46:49,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:46:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:46:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:46:49,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:46:49,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-12 18:46:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:46:49,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:46:49,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:49,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:46:49,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:49,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:49,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:46:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:46:49,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:46:49,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:46:49,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:46:49,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:46:49,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:46:49,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:46:49,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:46:49,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-12 18:46:49,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:46:49,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:46:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-12 18:46:49,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1596991517] [2020-10-12 18:46:49,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 18:46:49,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-12 18:46:49,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426532122] [2020-10-12 18:46:49,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:46:49,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:46:49,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:46:49,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:46:49,290 INFO L87 Difference]: Start difference. First operand 66165 states and 86616 transitions. Second operand 17 states. [2020-10-12 18:46:49,728 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-12 18:46:50,382 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2020-10-12 18:46:50,523 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-12 18:46:51,375 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103