/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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 language data_model -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.3.1.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 12:27:16,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 12:27:16,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 12:27:16,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 12:27:16,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 12:27:16,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 12:27:16,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 12:27:16,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 12:27:16,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 12:27:16,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 12:27:16,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 12:27:16,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 12:27:16,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 12:27:16,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 12:27:16,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 12:27:16,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 12:27:16,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 12:27:16,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 12:27:16,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 12:27:16,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 12:27:16,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 12:27:16,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 12:27:16,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 12:27:16,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 12:27:16,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 12:27:16,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 12:27:16,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 12:27:16,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 12:27:16,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 12:27:16,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 12:27:16,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 12:27:16,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 12:27:16,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 12:27:16,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 12:27:16,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 12:27:16,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 12:27:16,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 12:27:16,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 12:27:16,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 12:27:16,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 12:27:16,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 12:27:16,715 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 [2020-10-29 12:27:16,764 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 12:27:16,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 12:27:16,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 12:27:16,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 12:27:16,769 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 12:27:16,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 12:27:16,770 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 12:27:16,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 12:27:16,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 12:27:16,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 12:27:16,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 12:27:16,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 12:27:16,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 12:27:16,772 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 12:27:16,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 12:27:16,773 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 12:27:16,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 12:27:16,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 12:27:16,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 12:27:16,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 12:27:16,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 12:27:16,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 12:27:16,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 12:27:16,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 12:27:16,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 12:27:16,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 12:27:16,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 12:27:16,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 12:27:16,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 12:27:16,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 12:27:17,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 12:27:17,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 12:27:17,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 12:27:17,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 12:27:17,255 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 12:27:17,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.3.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:27:17,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d54e1cd95/638f17a9341445698e2677c20c55ae82/FLAGa7c08a05f [2020-10-29 12:27:18,092 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 12:27:18,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.3.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:27:18,104 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d54e1cd95/638f17a9341445698e2677c20c55ae82/FLAGa7c08a05f [2020-10-29 12:27:18,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d54e1cd95/638f17a9341445698e2677c20c55ae82 [2020-10-29 12:27:18,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 12:27:18,419 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 12:27:18,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 12:27:18,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 12:27:18,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 12:27:18,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c75636b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18, skipping insertion in model container [2020-10-29 12:27:18,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 12:27:18,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 12:27:18,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:27:18,732 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 12:27:18,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 12:27:18,805 INFO L208 MainTranslator]: Completed translation [2020-10-29 12:27:18,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18 WrapperNode [2020-10-29 12:27:18,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 12:27:18,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 12:27:18,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 12:27:18,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 12:27:18,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,834 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (1/1) ... [2020-10-29 12:27:18,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 12:27:18,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 12:27:18,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 12:27:18,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 12:27:18,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (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 [2020-10-29 12:27:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 12:27:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 12:27:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 12:27:18,962 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 12:27:18,963 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-29 12:27:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-29 12:27:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-29 12:27:18,964 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-29 12:27:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-29 12:27:18,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 12:27:18,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-29 12:27:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 12:27:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 12:27:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 12:27:18,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 12:27:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-29 12:27:18,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 12:27:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-29 12:27:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-29 12:27:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 12:27:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-29 12:27:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-29 12:27:18,971 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-29 12:27:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-29 12:27:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-29 12:27:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-29 12:27:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-29 12:27:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 12:27:18,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 12:27:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 12:27:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 12:27:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 12:27:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 12:27:18,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 12:27:19,744 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 12:27:19,744 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 12:27:19,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:27:19 BoogieIcfgContainer [2020-10-29 12:27:19,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 12:27:19,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 12:27:19,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 12:27:19,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 12:27:19,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:27:18" (1/3) ... [2020-10-29 12:27:19,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7c7641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:27:19, skipping insertion in model container [2020-10-29 12:27:19,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:27:18" (2/3) ... [2020-10-29 12:27:19,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7c7641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:27:19, skipping insertion in model container [2020-10-29 12:27:19,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:27:19" (3/3) ... [2020-10-29 12:27:19,756 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c [2020-10-29 12:27:19,771 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 12:27:19,776 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 12:27:19,793 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 12:27:19,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 12:27:19,823 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 12:27:19,823 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 12:27:19,823 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 12:27:19,824 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 12:27:19,824 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 12:27:19,824 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 12:27:19,824 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 12:27:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-10-29 12:27:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 12:27:19,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:27:19,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:27:19,855 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:27:19,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:27:19,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1495902646, now seen corresponding path program 1 times [2020-10-29 12:27:19,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:27:19,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346083557] [2020-10-29 12:27:19,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:27:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 12:27:20,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-29 12:27:20,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 12:27:20,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 12:27:20,668 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:27:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:27:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:27:20,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:27:20,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:20,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:20,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:27:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:27:20,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:27:20,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:20,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:20,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:27:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:27:20,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:27:20,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:27:20,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:20,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:27:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:20,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:27:20,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:27:20,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 12:27:20,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:27:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:20,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:27:20,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:27:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:20,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:27:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:20,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:27:20,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:27:20,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:20,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:27:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:20,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:20,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:20,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:27:20,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:27:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:20,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:27:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:27:20,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346083557] [2020-10-29 12:27:20,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:27:20,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 12:27:20,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575906027] [2020-10-29 12:27:20,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 12:27:20,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:27:20,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 12:27:20,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 12:27:21,000 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 6 states. [2020-10-29 12:27:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:27:21,619 INFO L93 Difference]: Finished difference Result 158 states and 224 transitions. [2020-10-29 12:27:21,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 12:27:21,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2020-10-29 12:27:21,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:27:21,632 INFO L225 Difference]: With dead ends: 158 [2020-10-29 12:27:21,632 INFO L226 Difference]: Without dead ends: 91 [2020-10-29 12:27:21,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:27:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-29 12:27:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2020-10-29 12:27:21,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 12:27:21,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2020-10-29 12:27:21,695 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 54 [2020-10-29 12:27:21,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:27:21,695 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2020-10-29 12:27:21,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 12:27:21,696 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2020-10-29 12:27:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-29 12:27:21,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:27:21,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:27:21,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 12:27:21,699 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:27:21,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:27:21,700 INFO L82 PathProgramCache]: Analyzing trace with hash -349464520, now seen corresponding path program 1 times [2020-10-29 12:27:21,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:27:21,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [835390923] [2020-10-29 12:27:21,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:27:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:21,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 12:27:22,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-29 12:27:22,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:27:22,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:27:22,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:27:22,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:22,487 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:27:22,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:27:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:22,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:27:22,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:27:22,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:22,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:22,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:22,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:27:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:22,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:27:22,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:27:22,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:27:22,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-29 12:27:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:22,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:27:22,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 12:27:22,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:22,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 12:27:22,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:27:22,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 12:27:22,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 12:27:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:22,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:22,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:27:22,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:27:22,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:22,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 12:27:22,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 12:27:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:22,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:22,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:27:22,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:22,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:27:22,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:22,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:22,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 12:27:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:22,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:22,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:27:22,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:27:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:22,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:22,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:27:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:22,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:22,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:22,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:27:22,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:22,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:27:22,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:22,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:27:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 12:27:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:27:22,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [835390923] [2020-10-29 12:27:22,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:27:22,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:27:22,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424833797] [2020-10-29 12:27:22,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:27:22,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:27:22,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:27:22,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:27:22,891 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand 12 states. [2020-10-29 12:27:23,051 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:27:23,234 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:27:23,514 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:27:23,703 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-29 12:27:24,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:27:24,710 INFO L93 Difference]: Finished difference Result 153 states and 212 transitions. [2020-10-29 12:27:24,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 12:27:24,710 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-10-29 12:27:24,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:27:24,713 INFO L225 Difference]: With dead ends: 153 [2020-10-29 12:27:24,713 INFO L226 Difference]: Without dead ends: 91 [2020-10-29 12:27:24,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-29 12:27:24,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-29 12:27:24,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 90. [2020-10-29 12:27:24,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 12:27:24,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 111 transitions. [2020-10-29 12:27:24,734 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 111 transitions. Word has length 54 [2020-10-29 12:27:24,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:27:24,734 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 111 transitions. [2020-10-29 12:27:24,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:27:24,734 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 111 transitions. [2020-10-29 12:27:24,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-29 12:27:24,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:27:24,737 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] [2020-10-29 12:27:24,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 12:27:24,738 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:27:24,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:27:24,738 INFO L82 PathProgramCache]: Analyzing trace with hash 829158538, now seen corresponding path program 1 times [2020-10-29 12:27:24,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:27:24,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1599371425] [2020-10-29 12:27:24,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:27:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:24,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:24,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:24,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 12:27:27,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:27:27,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2631 [2020-10-29 12:27:27,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:27:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:27:27,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-29 12:27:27,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 12:27:27,592 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:27:27,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:27:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:27,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:27:27,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:27,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:27:27,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:27,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:27,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:27,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:27:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:27,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:27:27,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:27,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 12:27:27,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:27,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:27:27,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:27,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:27:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:27,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:27:27,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:27:27,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:27,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:27,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:27:27,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:27,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:27:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:27,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:27,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:27,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 12:27:27,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:27,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:27,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:27:27,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:27,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:27:27,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:27,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:27,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 12:27:27,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:27,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:27,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:27:27,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:27,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:27:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:27,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:27,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 12:27:27,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:27,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:27,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:27:27,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:27,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:27:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:27,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:27,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:27,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:27:27,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:27,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:27:27,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:27,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:27:27,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:27:27,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:27:27,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1599371425] [2020-10-29 12:27:27,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:27:27,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:27:27,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603205572] [2020-10-29 12:27:27,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:27:27,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:27:27,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:27:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:27:27,988 INFO L87 Difference]: Start difference. First operand 90 states and 111 transitions. Second operand 13 states. [2020-10-29 12:27:28,183 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:27:28,381 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:27:28,546 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:27:29,844 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:27:29,984 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:27:30,191 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:27:30,339 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:27:32,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:27:32,878 INFO L93 Difference]: Finished difference Result 558 states and 763 transitions. [2020-10-29 12:27:32,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-29 12:27:32,879 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-29 12:27:32,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:27:32,889 INFO L225 Difference]: With dead ends: 558 [2020-10-29 12:27:32,889 INFO L226 Difference]: Without dead ends: 502 [2020-10-29 12:27:32,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=652, Invalid=2318, Unknown=0, NotChecked=0, Total=2970 [2020-10-29 12:27:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-10-29 12:27:33,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 473. [2020-10-29 12:27:33,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-10-29 12:27:33,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 650 transitions. [2020-10-29 12:27:33,032 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 650 transitions. Word has length 69 [2020-10-29 12:27:33,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:27:33,036 INFO L481 AbstractCegarLoop]: Abstraction has 473 states and 650 transitions. [2020-10-29 12:27:33,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:27:33,036 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 650 transitions. [2020-10-29 12:27:33,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 12:27:33,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:27:33,049 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] [2020-10-29 12:27:33,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 12:27:33,049 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:27:33,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:27:33,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1297805266, now seen corresponding path program 1 times [2020-10-29 12:27:33,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:27:33,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664599411] [2020-10-29 12:27:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:27:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:33,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:33,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:33,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:34,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:34,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 12:27:34,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:27:34,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1852 [2020-10-29 12:27:34,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:34,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:27:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 12:27:34,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-29 12:27:34,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:35,093 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:27:35,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:27:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:35,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:35,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:35,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:27:35,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:27:35,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:35,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:35,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:35,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:35,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:27:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:35,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:35,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:35,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:27:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:27:35,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:35,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:35,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:27:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:27:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:35,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:35,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:35,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:27:35,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:27:35,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:35,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:35,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:27:35,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:27:35,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:27:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:35,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:35,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:35,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:35,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:27:35,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:35,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:27:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:35,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:27:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:35,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:35,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:35,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:35,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:27:35,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:35,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:35,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:27:35,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:27:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:35,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:35,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:35,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:35,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:35,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:27:35,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:35,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:35,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:27:35,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:35,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:27:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:35,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:35,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:35,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:27:35,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:35,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:27:35,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:35,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:27:35,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:27:35,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:27:35,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664599411] [2020-10-29 12:27:35,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:27:35,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:27:35,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893048815] [2020-10-29 12:27:35,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:27:35,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:27:35,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:27:35,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:27:35,456 INFO L87 Difference]: Start difference. First operand 473 states and 650 transitions. Second operand 13 states. [2020-10-29 12:27:35,674 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-29 12:27:35,845 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:27:36,029 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:27:36,688 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:27:37,164 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:27:37,973 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-29 12:27:38,375 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:27:38,618 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:27:41,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:27:41,181 INFO L93 Difference]: Finished difference Result 1153 states and 1604 transitions. [2020-10-29 12:27:41,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-29 12:27:41,182 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-10-29 12:27:41,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:27:41,189 INFO L225 Difference]: With dead ends: 1153 [2020-10-29 12:27:41,189 INFO L226 Difference]: Without dead ends: 714 [2020-10-29 12:27:41,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=666, Invalid=2526, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 12:27:41,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-10-29 12:27:41,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 641. [2020-10-29 12:27:41,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-10-29 12:27:41,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 886 transitions. [2020-10-29 12:27:41,267 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 886 transitions. Word has length 71 [2020-10-29 12:27:41,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:27:41,267 INFO L481 AbstractCegarLoop]: Abstraction has 641 states and 886 transitions. [2020-10-29 12:27:41,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:27:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 886 transitions. [2020-10-29 12:27:41,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 12:27:41,269 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:27:41,270 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] [2020-10-29 12:27:41,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 12:27:41,270 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:27:41,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:27:41,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1733091558, now seen corresponding path program 1 times [2020-10-29 12:27:41,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:27:41,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795412195] [2020-10-29 12:27:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:27:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:41,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:41,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:41,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:43,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 12:27:46,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:27:46,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 12:27:46,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:27:46,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 12:27:46,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,479 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:27:46,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:27:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:46,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:27:46,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:46,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:27:46,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:46,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:27:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:46,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:27:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:27:46,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:27:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:27:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:46,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:27:46,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:46,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:27:46,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:46,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:27:46,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:27:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:46,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:46,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:27:46,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:27:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:46,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:27:46,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:27:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:46,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:46,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:27:46,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:27:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:27:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:46,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:46,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:46,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:27:46,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:46,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:27:46,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:27:46,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:46,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:46,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:46,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:27:46,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:27:46,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:27:46,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:46,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:27:46,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:27:46,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:27:46,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795412195] [2020-10-29 12:27:46,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:27:46,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 12:27:46,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142566235] [2020-10-29 12:27:46,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 12:27:46,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:27:46,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 12:27:46,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:27:46,699 INFO L87 Difference]: Start difference. First operand 641 states and 886 transitions. Second operand 9 states. [2020-10-29 12:27:46,872 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:27:47,864 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:27:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:27:48,695 INFO L93 Difference]: Finished difference Result 2094 states and 2958 transitions. [2020-10-29 12:27:48,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 12:27:48,695 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-29 12:27:48,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:27:48,711 INFO L225 Difference]: With dead ends: 2094 [2020-10-29 12:27:48,711 INFO L226 Difference]: Without dead ends: 1487 [2020-10-29 12:27:48,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-29 12:27:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2020-10-29 12:27:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1446. [2020-10-29 12:27:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1446 states. [2020-10-29 12:27:48,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1990 transitions. [2020-10-29 12:27:48,871 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1990 transitions. Word has length 71 [2020-10-29 12:27:48,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:27:48,872 INFO L481 AbstractCegarLoop]: Abstraction has 1446 states and 1990 transitions. [2020-10-29 12:27:48,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 12:27:48,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1990 transitions. [2020-10-29 12:27:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 12:27:48,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:27:48,874 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] [2020-10-29 12:27:48,875 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 12:27:48,875 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:27:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:27:48,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1710119360, now seen corresponding path program 1 times [2020-10-29 12:27:48,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:27:48,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833774328] [2020-10-29 12:27:48,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:27:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:48,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:48,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:48,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:49,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:49,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 12:27:53,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:27:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4562 [2020-10-29 12:27:53,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:27:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:27:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 12:27:53,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,648 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:27:53,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:27:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:27:53,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:27:53,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:27:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:27:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:53,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:27:53,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:53,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:27:53,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:27:53,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:53,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:27:53,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:27:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:53,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:27:53,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:53,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:27:53,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:53,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:27:53,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:27:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:53,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:53,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:53,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:27:53,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:53,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:27:53,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:27:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:53,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:27:53,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:53,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:27:53,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:27:53,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:27:53,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:27:53,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:27:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:53,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:27:53,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:53,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 12:27:53,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:27:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:27:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:27:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:27:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:53,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:53,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:27:53,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:27:53,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:27:53,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:27:53,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:27:53,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:27:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:27:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:27:53,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:27:53,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:27:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:27:53,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833774328] [2020-10-29 12:27:53,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:27:53,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:27:53,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668130534] [2020-10-29 12:27:53,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:27:53,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:27:53,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:27:53,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:27:53,916 INFO L87 Difference]: Start difference. First operand 1446 states and 1990 transitions. Second operand 13 states. [2020-10-29 12:27:54,265 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2020-10-29 12:27:54,434 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:27:54,952 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-10-29 12:27:56,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:27:56,429 INFO L93 Difference]: Finished difference Result 2903 states and 3981 transitions. [2020-10-29 12:27:56,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:27:56,430 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-10-29 12:27:56,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:27:56,441 INFO L225 Difference]: With dead ends: 2903 [2020-10-29 12:27:56,441 INFO L226 Difference]: Without dead ends: 1647 [2020-10-29 12:27:56,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2020-10-29 12:27:56,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2020-10-29 12:27:56,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1561. [2020-10-29 12:27:56,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2020-10-29 12:27:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2143 transitions. [2020-10-29 12:27:56,631 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2143 transitions. Word has length 71 [2020-10-29 12:27:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:27:56,632 INFO L481 AbstractCegarLoop]: Abstraction has 1561 states and 2143 transitions. [2020-10-29 12:27:56,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:27:56,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2143 transitions. [2020-10-29 12:27:56,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 12:27:56,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:27:56,634 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] [2020-10-29 12:27:56,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 12:27:56,635 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:27:56,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:27:56,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1907071692, now seen corresponding path program 1 times [2020-10-29 12:27:56,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:27:56,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538517435] [2020-10-29 12:27:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:27:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:27:56,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:56,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:56,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:56,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:27:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:00,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:00,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 12:28:00,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:28:00,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4316 [2020-10-29 12:28:00,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:00,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:28:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:28:00,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 12:28:00,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,133 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:01,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:01,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:01,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:01,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:01,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:01,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 12:28:01,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:01,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:01,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:28:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:01,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:01,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:01,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:01,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:01,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:28:01,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:01,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:01,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:28:01,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:28:01,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:01,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:01,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:01,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:01,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:01,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:01,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:01,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:01,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:01,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:01,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:01,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:01,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:01,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:01,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:01,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:01,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:01,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:01,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:28:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:01,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:01,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:01,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:01,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:01,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:28:01,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:01,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:01,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:28:01,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:01,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:28:01,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:28:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:01,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:01,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:01,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:01,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:01,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:28:01,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:01,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:01,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:01,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:28:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:01,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:01,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:01,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:01,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:01,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:01,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:01,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:01,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:28:01,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:01,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:28:01,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538517435] [2020-10-29 12:28:01,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:01,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:28:01,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050076608] [2020-10-29 12:28:01,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:28:01,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:01,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:28:01,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:28:01,403 INFO L87 Difference]: Start difference. First operand 1561 states and 2143 transitions. Second operand 13 states. [2020-10-29 12:28:01,759 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 111 [2020-10-29 12:28:01,937 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:28:02,434 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 113 [2020-10-29 12:28:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:03,993 INFO L93 Difference]: Finished difference Result 2970 states and 4091 transitions. [2020-10-29 12:28:03,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 12:28:03,994 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 71 [2020-10-29 12:28:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:04,006 INFO L225 Difference]: With dead ends: 2970 [2020-10-29 12:28:04,006 INFO L226 Difference]: Without dead ends: 1986 [2020-10-29 12:28:04,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=200, Invalid=556, Unknown=0, NotChecked=0, Total=756 [2020-10-29 12:28:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-10-29 12:28:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1680. [2020-10-29 12:28:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1680 states. [2020-10-29 12:28:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2312 transitions. [2020-10-29 12:28:04,188 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2312 transitions. Word has length 71 [2020-10-29 12:28:04,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:04,188 INFO L481 AbstractCegarLoop]: Abstraction has 1680 states and 2312 transitions. [2020-10-29 12:28:04,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:28:04,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2312 transitions. [2020-10-29 12:28:04,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 12:28:04,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:04,190 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] [2020-10-29 12:28:04,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 12:28:04,190 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:04,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1509421185, now seen corresponding path program 1 times [2020-10-29 12:28:04,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:04,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262284097] [2020-10-29 12:28:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:04,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:04,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:07,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:07,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:28:07,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:28:07,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3511 [2020-10-29 12:28:07,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:07,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 12:28:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 12:28:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:07,893 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:07,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:07,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:07,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:07,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:07,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:07,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:07,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:07,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:07,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:07,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:07,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:07,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:07,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:07,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:07,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:07,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:07,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:28:07,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:07,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:07,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:07,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:07,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:07,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:07,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:07,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:07,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:07,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:07,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:07,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:07,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:07,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:07,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:07,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:07,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:07,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:07,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:07,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:07,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:07,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:07,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:07,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:07,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:07,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:07,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:07,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:07,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:28:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:08,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:08,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:08,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:08,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:08,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:28:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:08,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:08,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:08,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:08,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:08,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:08,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:08,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:08,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:08,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:08,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:28:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:08,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:08,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:08,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:08,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:08,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:08,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:28:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:28:08,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262284097] [2020-10-29 12:28:08,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:08,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 12:28:08,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373415705] [2020-10-29 12:28:08,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 12:28:08,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:08,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 12:28:08,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:28:08,119 INFO L87 Difference]: Start difference. First operand 1680 states and 2312 transitions. Second operand 9 states. [2020-10-29 12:28:08,318 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:28:09,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:09,699 INFO L93 Difference]: Finished difference Result 4374 states and 6055 transitions. [2020-10-29 12:28:09,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 12:28:09,700 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-29 12:28:09,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:09,720 INFO L225 Difference]: With dead ends: 4374 [2020-10-29 12:28:09,720 INFO L226 Difference]: Without dead ends: 2753 [2020-10-29 12:28:09,728 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-29 12:28:09,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2020-10-29 12:28:10,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 2716. [2020-10-29 12:28:10,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2716 states. [2020-10-29 12:28:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3690 transitions. [2020-10-29 12:28:10,031 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3690 transitions. Word has length 72 [2020-10-29 12:28:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:10,032 INFO L481 AbstractCegarLoop]: Abstraction has 2716 states and 3690 transitions. [2020-10-29 12:28:10,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 12:28:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3690 transitions. [2020-10-29 12:28:10,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 12:28:10,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:10,034 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] [2020-10-29 12:28:10,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 12:28:10,034 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:10,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:10,035 INFO L82 PathProgramCache]: Analyzing trace with hash -869800629, now seen corresponding path program 1 times [2020-10-29 12:28:10,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:10,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1047969286] [2020-10-29 12:28:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:10,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:10,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:28:11,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:28:11,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 989 [2020-10-29 12:28:11,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:11,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-29 12:28:11,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 12:28:11,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,192 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:11,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:11,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:11,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:11,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:11,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:11,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:11,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:11,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:11,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:11,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:28:11,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:11,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:11,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:28:11,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:11,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:11,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:11,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:11,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:11,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:11,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:11,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:11,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:11,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:11,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:11,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:11,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:28:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:11,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:11,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:11,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:28:11,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:11,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:11,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:28:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:11,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:11,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:11,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:28:11,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:11,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:11,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:28:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:11,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:11,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:11,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:11,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:11,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:11,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:11,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:11,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:11,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:28:11,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:11,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:11,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:28:11,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1047969286] [2020-10-29 12:28:11,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:11,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-29 12:28:11,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041084383] [2020-10-29 12:28:11,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 12:28:11,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:11,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 12:28:11,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-29 12:28:11,379 INFO L87 Difference]: Start difference. First operand 2716 states and 3690 transitions. Second operand 9 states. [2020-10-29 12:28:11,546 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:28:13,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:13,134 INFO L93 Difference]: Finished difference Result 7570 states and 10355 transitions. [2020-10-29 12:28:13,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 12:28:13,135 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2020-10-29 12:28:13,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:13,170 INFO L225 Difference]: With dead ends: 7570 [2020-10-29 12:28:13,170 INFO L226 Difference]: Without dead ends: 4943 [2020-10-29 12:28:13,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-29 12:28:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2020-10-29 12:28:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4896. [2020-10-29 12:28:13,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4896 states. [2020-10-29 12:28:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4896 states to 4896 states and 6548 transitions. [2020-10-29 12:28:13,782 INFO L78 Accepts]: Start accepts. Automaton has 4896 states and 6548 transitions. Word has length 72 [2020-10-29 12:28:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:13,782 INFO L481 AbstractCegarLoop]: Abstraction has 4896 states and 6548 transitions. [2020-10-29 12:28:13,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 12:28:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 4896 states and 6548 transitions. [2020-10-29 12:28:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 12:28:13,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:13,784 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] [2020-10-29 12:28:13,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 12:28:13,784 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:13,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:13,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1485135809, now seen corresponding path program 1 times [2020-10-29 12:28:13,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:13,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638109193] [2020-10-29 12:28:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:13,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 12:28:14,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-29 12:28:14,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:28:14,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 12:28:14,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:28:14,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,242 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:14,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:14,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:14,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:14,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:14,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:14,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:14,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:14,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:14,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:14,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:14,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:14,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:28:14,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:14,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:14,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:14,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:14,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:14,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:28:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:14,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:14,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:14,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:14,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:28:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:14,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:14,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:14,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:14,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:14,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:28:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:14,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:14,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:14,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:14,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:14,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:14,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:28:14,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:14,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:28:14,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638109193] [2020-10-29 12:28:14,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:14,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-29 12:28:14,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191768258] [2020-10-29 12:28:14,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 12:28:14,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:14,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 12:28:14,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-29 12:28:14,440 INFO L87 Difference]: Start difference. First operand 4896 states and 6548 transitions. Second operand 12 states. [2020-10-29 12:28:15,237 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-29 12:28:15,397 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:28:15,670 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:28:15,848 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:28:16,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:16,705 INFO L93 Difference]: Finished difference Result 5384 states and 7461 transitions. [2020-10-29 12:28:16,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 12:28:16,706 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 72 [2020-10-29 12:28:16,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:16,746 INFO L225 Difference]: With dead ends: 5384 [2020-10-29 12:28:16,746 INFO L226 Difference]: Without dead ends: 5381 [2020-10-29 12:28:16,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-29 12:28:16,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2020-10-29 12:28:17,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5004. [2020-10-29 12:28:17,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2020-10-29 12:28:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6648 transitions. [2020-10-29 12:28:17,397 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6648 transitions. Word has length 72 [2020-10-29 12:28:17,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:17,397 INFO L481 AbstractCegarLoop]: Abstraction has 5004 states and 6648 transitions. [2020-10-29 12:28:17,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 12:28:17,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6648 transitions. [2020-10-29 12:28:17,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-29 12:28:17,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:17,399 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] [2020-10-29 12:28:17,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 12:28:17,399 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:17,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:17,399 INFO L82 PathProgramCache]: Analyzing trace with hash -309812069, now seen corresponding path program 1 times [2020-10-29 12:28:17,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:17,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707623186] [2020-10-29 12:28:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:17,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:17,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:17,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 12:28:21,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:28:21,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3736 [2020-10-29 12:28:21,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 12:28:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 12:28:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 12:28:21,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:21,358 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:21,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:21,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:21,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 12:28:21,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:21,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 12:28:21,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:21,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:21,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:21,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 12:28:21,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:28:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:21,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:28:21,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:21,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:21,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:21,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:21,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:21,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:21,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:28:21,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:21,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 12:28:21,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:21,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:28:21,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:28:21,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:21,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 12:28:21,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:21,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 12:28:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:21,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:21,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:21,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:28:21,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:21,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:21,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:21,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 12:28:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:21,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:21,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:21,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:28:21,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 12:28:21,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:21,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:21,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 12:28:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:21,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:21,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:21,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:21,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:21,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:28:21,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:21,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:28:21,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:21,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:28:21,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707623186] [2020-10-29 12:28:21,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:21,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-29 12:28:21,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404577955] [2020-10-29 12:28:21,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 12:28:21,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:21,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 12:28:21,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-10-29 12:28:21,697 INFO L87 Difference]: Start difference. First operand 5004 states and 6648 transitions. Second operand 13 states. [2020-10-29 12:28:21,862 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-29 12:28:22,026 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:28:22,336 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 12:28:22,502 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-29 12:28:24,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:24,151 INFO L93 Difference]: Finished difference Result 9915 states and 13258 transitions. [2020-10-29 12:28:24,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 12:28:24,151 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 73 [2020-10-29 12:28:24,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:24,189 INFO L225 Difference]: With dead ends: 9915 [2020-10-29 12:28:24,189 INFO L226 Difference]: Without dead ends: 5992 [2020-10-29 12:28:24,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=212, Invalid=544, Unknown=0, NotChecked=0, Total=756 [2020-10-29 12:28:24,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2020-10-29 12:28:24,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 5323. [2020-10-29 12:28:24,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5323 states. [2020-10-29 12:28:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 7096 transitions. [2020-10-29 12:28:24,868 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 7096 transitions. Word has length 73 [2020-10-29 12:28:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:24,868 INFO L481 AbstractCegarLoop]: Abstraction has 5323 states and 7096 transitions. [2020-10-29 12:28:24,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 12:28:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 7096 transitions. [2020-10-29 12:28:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-29 12:28:24,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:24,869 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] [2020-10-29 12:28:24,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 12:28:24,870 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:24,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:24,870 INFO L82 PathProgramCache]: Analyzing trace with hash -757001113, now seen corresponding path program 1 times [2020-10-29 12:28:24,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:24,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38662063] [2020-10-29 12:28:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:24,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:24,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 12:28:25,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:28:25,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-10-29 12:28:25,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:28:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 12:28:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 12:28:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,662 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:25,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:25,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:25,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:25,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:28:25,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:25,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:25,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:25,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:25,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:25,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:25,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:28:25,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:25,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:25,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 12:28:25,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:25,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:25,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:25,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:28:25,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:25,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:25,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:25,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:25,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:25,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:25,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 12:28:25,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:28:25,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:25,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:28:25,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 12:28:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:25,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:25,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:28:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 12:28:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:25,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:25,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:25,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:25,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:25,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:25,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:25,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 12:28:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:25,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:25,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:25,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 12:28:25,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:28:25,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:25,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-29 12:28:25,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 12:28:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:25,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 12:28:25,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38662063] [2020-10-29 12:28:25,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 12:28:25,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-29 12:28:25,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137731683] [2020-10-29 12:28:25,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 12:28:25,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:25,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 12:28:25,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-29 12:28:25,917 INFO L87 Difference]: Start difference. First operand 5323 states and 7096 transitions. Second operand 11 states. [2020-10-29 12:28:26,070 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:28:26,531 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:28:27,787 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:28:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:29,045 INFO L93 Difference]: Finished difference Result 12101 states and 16459 transitions. [2020-10-29 12:28:29,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 12:28:29,046 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 74 [2020-10-29 12:28:29,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:29,086 INFO L225 Difference]: With dead ends: 12101 [2020-10-29 12:28:29,086 INFO L226 Difference]: Without dead ends: 7876 [2020-10-29 12:28:29,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=185, Invalid=627, Unknown=0, NotChecked=0, Total=812 [2020-10-29 12:28:29,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7876 states. [2020-10-29 12:28:29,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7876 to 7550. [2020-10-29 12:28:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7550 states. [2020-10-29 12:28:29,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7550 states to 7550 states and 10132 transitions. [2020-10-29 12:28:29,919 INFO L78 Accepts]: Start accepts. Automaton has 7550 states and 10132 transitions. Word has length 74 [2020-10-29 12:28:29,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:29,919 INFO L481 AbstractCegarLoop]: Abstraction has 7550 states and 10132 transitions. [2020-10-29 12:28:29,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 12:28:29,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7550 states and 10132 transitions. [2020-10-29 12:28:29,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 12:28:29,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:29,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:28:29,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 12:28:29,924 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:29,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:29,925 INFO L82 PathProgramCache]: Analyzing trace with hash 318990572, now seen corresponding path program 1 times [2020-10-29 12:28:29,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:29,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467985005] [2020-10-29 12:28:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:29,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:29,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:30,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:30,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:30,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:30,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:34,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:34,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 12:28:34,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:28:34,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 12:28:34,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:34,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:28:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:28:34,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 12:28:34,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,129 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:35,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:35,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:35,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:35,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:35,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:28:35,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:35,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:28:35,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:35,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:35,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:35,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:35,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 12:28:35,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:28:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:35,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:35,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:28:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:35,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:28:35,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:28:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:35,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:28:35,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:28:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:35,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:35,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:28:35,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:28:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:35,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:28:35,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:35,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:28:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:35,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:35,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:35,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:35,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:35,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:28:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:35,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:28:35,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:28:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:35,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:28:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:35,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:35,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:35,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:28:35,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:35,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:28:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:35,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:35,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 12:28:35,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467985005] [2020-10-29 12:28:35,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:28:35,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 12:28:35,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188147816] [2020-10-29 12:28:35,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:28:35,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:35,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:28:35,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:28:35,556 INFO L87 Difference]: Start difference. First operand 7550 states and 10132 transitions. Second operand 15 states. [2020-10-29 12:28:35,781 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:28:36,139 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:28:36,452 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 116 [2020-10-29 12:28:36,858 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:28:37,460 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:28:38,029 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2020-10-29 12:28:38,857 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:28:40,577 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:28:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:42,379 INFO L93 Difference]: Finished difference Result 33811 states and 45517 transitions. [2020-10-29 12:28:42,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-29 12:28:42,380 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-29 12:28:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:42,506 INFO L225 Difference]: With dead ends: 33811 [2020-10-29 12:28:42,506 INFO L226 Difference]: Without dead ends: 26337 [2020-10-29 12:28:42,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=509, Invalid=2247, Unknown=0, NotChecked=0, Total=2756 [2020-10-29 12:28:42,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26337 states. [2020-10-29 12:28:45,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26337 to 23999. [2020-10-29 12:28:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23999 states. [2020-10-29 12:28:45,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23999 states to 23999 states and 32275 transitions. [2020-10-29 12:28:45,104 INFO L78 Accepts]: Start accepts. Automaton has 23999 states and 32275 transitions. Word has length 109 [2020-10-29 12:28:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:28:45,104 INFO L481 AbstractCegarLoop]: Abstraction has 23999 states and 32275 transitions. [2020-10-29 12:28:45,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:28:45,105 INFO L276 IsEmpty]: Start isEmpty. Operand 23999 states and 32275 transitions. [2020-10-29 12:28:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 12:28:45,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:28:45,112 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:28:45,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 12:28:45,112 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:28:45,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:28:45,113 INFO L82 PathProgramCache]: Analyzing trace with hash 996766816, now seen corresponding path program 1 times [2020-10-29 12:28:45,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:28:45,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514684494] [2020-10-29 12:28:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:28:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:45,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:45,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:45,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:45,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:48,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 12:28:50,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:28:50,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 12:28:50,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:28:50,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 12:28:50,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 12:28:50,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,313 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:28:50,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:28:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:28:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:28:50,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:28:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:28:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:28:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:28:50,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:28:50,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 12:28:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:28:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:50,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:28:50,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:50,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:28:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:50,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:28:50,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:50,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:50,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:28:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:50,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:28:50,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:28:50,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:50,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:28:50,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:28:50,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:28:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:50,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:28:50,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:28:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:28:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:28:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:28:50,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:50,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:28:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:28:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:50,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 12:28:50,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:50,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:50,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:28:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:28:50,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:28:50,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:28:50,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:28:50,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:28:50,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:28:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:28:50,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 12:28:50,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:28:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:28:50,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:28:50,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:28:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:28:50,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:28:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:28:50,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:28:50,661 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 12:28:50,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514684494] [2020-10-29 12:28:50,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:28:50,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 12:28:50,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258892411] [2020-10-29 12:28:50,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:28:50,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:28:50,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:28:50,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:28:50,663 INFO L87 Difference]: Start difference. First operand 23999 states and 32275 transitions. Second operand 15 states. [2020-10-29 12:28:51,030 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-29 12:28:51,243 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:28:51,893 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:28:52,929 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-29 12:28:53,512 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:28:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:28:57,426 INFO L93 Difference]: Finished difference Result 56190 states and 76832 transitions. [2020-10-29 12:28:57,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 12:28:57,426 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-29 12:28:57,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:28:57,575 INFO L225 Difference]: With dead ends: 56190 [2020-10-29 12:28:57,576 INFO L226 Difference]: Without dead ends: 34794 [2020-10-29 12:28:57,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=490, Invalid=1490, Unknown=0, NotChecked=0, Total=1980 [2020-10-29 12:28:57,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34794 states. [2020-10-29 12:29:01,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34794 to 33859. [2020-10-29 12:29:01,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33859 states. [2020-10-29 12:29:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33859 states to 33859 states and 45661 transitions. [2020-10-29 12:29:01,221 INFO L78 Accepts]: Start accepts. Automaton has 33859 states and 45661 transitions. Word has length 109 [2020-10-29 12:29:01,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:01,221 INFO L481 AbstractCegarLoop]: Abstraction has 33859 states and 45661 transitions. [2020-10-29 12:29:01,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:29:01,221 INFO L276 IsEmpty]: Start isEmpty. Operand 33859 states and 45661 transitions. [2020-10-29 12:29:01,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 12:29:01,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:01,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:29:01,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 12:29:01,229 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:01,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:01,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1073525474, now seen corresponding path program 1 times [2020-10-29 12:29:01,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:01,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [368381117] [2020-10-29 12:29:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:01,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:01,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:01,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:01,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:02,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 12:29:06,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,432 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:29:06,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:06,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:06,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:06,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:29:06,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:06,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:29:06,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:29:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:06,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:06,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:06,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:06,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:29:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:06,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:06,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:06,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:29:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:06,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:29:06,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:06,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:06,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:29:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:06,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:06,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:06,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:06,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:29:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:29:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:29:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:29:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:06,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:06,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:06,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:06,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:29:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:06,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:29:06,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:06,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:29:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:06,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:29:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:06,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:06,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 12:29:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:06,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:29:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:29:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:06,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:06,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:06,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:06,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:06,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:06,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:06,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-29 12:29:06,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 12:29:06,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 12:29:06,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [368381117] [2020-10-29 12:29:06,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:29:06,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 12:29:06,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836078486] [2020-10-29 12:29:06,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:29:06,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:06,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:29:06,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:29:06,754 INFO L87 Difference]: Start difference. First operand 33859 states and 45661 transitions. Second operand 15 states. [2020-10-29 12:29:07,098 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-29 12:29:07,333 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-10-29 12:29:07,941 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:29:09,173 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2020-10-29 12:29:09,380 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:29:13,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:13,348 INFO L93 Difference]: Finished difference Result 68650 states and 92998 transitions. [2020-10-29 12:29:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 12:29:13,349 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-29 12:29:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:13,516 INFO L225 Difference]: With dead ends: 68650 [2020-10-29 12:29:13,516 INFO L226 Difference]: Without dead ends: 37394 [2020-10-29 12:29:13,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=490, Invalid=1490, Unknown=0, NotChecked=0, Total=1980 [2020-10-29 12:29:13,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37394 states. [2020-10-29 12:29:17,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37394 to 36363. [2020-10-29 12:29:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36363 states. [2020-10-29 12:29:17,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36363 states to 36363 states and 49114 transitions. [2020-10-29 12:29:17,476 INFO L78 Accepts]: Start accepts. Automaton has 36363 states and 49114 transitions. Word has length 109 [2020-10-29 12:29:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:17,477 INFO L481 AbstractCegarLoop]: Abstraction has 36363 states and 49114 transitions. [2020-10-29 12:29:17,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:29:17,477 INFO L276 IsEmpty]: Start isEmpty. Operand 36363 states and 49114 transitions. [2020-10-29 12:29:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 12:29:17,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:17,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:29:17,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 12:29:17,485 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:17,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:17,486 INFO L82 PathProgramCache]: Analyzing trace with hash -839396824, now seen corresponding path program 1 times [2020-10-29 12:29:17,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:17,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430113103] [2020-10-29 12:29:17,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:17,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:17,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:17,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:17,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:22,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:22,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 12:29:22,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 12:29:22,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 12:29:22,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:22,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:22,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 12:29:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:29:22,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 12:29:22,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:22,682 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:29:22,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:22,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:22,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:22,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:22,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:22,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:22,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:22,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:22,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:22,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:22,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:22,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:29:22,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:22,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:29:22,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:22,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:22,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:22,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:22,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:29:22,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:22,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:29:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:22,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:22,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:22,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:22,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:22,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:22,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:22,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:22,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:22,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:22,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:29:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:22,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:22,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:22,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:22,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:22,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:22,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:22,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:22,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 12:29:22,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:29:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:22,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:22,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:22,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:22,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:22,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 12:29:22,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:22,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:22,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:29:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:22,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:22,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:22,987 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 28 [2020-10-29 12:29:23,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:29:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:23,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:29:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:23,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:29:23,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:23,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:29:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:23,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:23,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:23,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:23,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:23,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:29:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:23,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:23,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:23,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 12:29:23,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:23,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:23,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:23,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:23,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:29:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:23,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:23,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:23,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:23,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:23,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:23,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:23,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:29:23,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:23,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:29:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:23,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:23,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:23,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:23,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:23,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:29:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:23,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:23,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:23,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:29:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:23,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:23,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:23,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:29:23,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:23,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:23,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:23,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:29:23,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:23,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:29:23,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430113103] [2020-10-29 12:29:23,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:29:23,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 12:29:23,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43886926] [2020-10-29 12:29:23,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 12:29:23,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:23,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 12:29:23,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-29 12:29:23,201 INFO L87 Difference]: Start difference. First operand 36363 states and 49114 transitions. Second operand 15 states. [2020-10-29 12:29:23,433 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-29 12:29:23,800 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:29:24,374 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 130 [2020-10-29 12:29:24,716 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:29:25,122 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:29:26,052 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 132 [2020-10-29 12:29:26,505 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-29 12:29:28,617 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-29 12:29:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:29:35,507 INFO L93 Difference]: Finished difference Result 148175 states and 200472 transitions. [2020-10-29 12:29:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-29 12:29:35,507 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 111 [2020-10-29 12:29:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:29:36,196 INFO L225 Difference]: With dead ends: 148175 [2020-10-29 12:29:36,197 INFO L226 Difference]: Without dead ends: 111905 [2020-10-29 12:29:36,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2020-10-29 12:29:36,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111905 states. [2020-10-29 12:29:46,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111905 to 108594. [2020-10-29 12:29:46,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108594 states. [2020-10-29 12:29:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108594 states to 108594 states and 146785 transitions. [2020-10-29 12:29:46,732 INFO L78 Accepts]: Start accepts. Automaton has 108594 states and 146785 transitions. Word has length 111 [2020-10-29 12:29:46,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:29:46,733 INFO L481 AbstractCegarLoop]: Abstraction has 108594 states and 146785 transitions. [2020-10-29 12:29:46,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 12:29:46,733 INFO L276 IsEmpty]: Start isEmpty. Operand 108594 states and 146785 transitions. [2020-10-29 12:29:46,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 12:29:46,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:29:46,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 12:29:46,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 12:29:46,749 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:29:46,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:29:46,749 INFO L82 PathProgramCache]: Analyzing trace with hash -427082730, now seen corresponding path program 1 times [2020-10-29 12:29:46,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:29:46,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69167254] [2020-10-29 12:29:46,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:29:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:46,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:46,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:46,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:47,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:48,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:51,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:51,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 12:29:51,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 12:29:51,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 12:29:51,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:51,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 12:29:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:29:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 12:29:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:51,986 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:29:51,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:29:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:51,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:51,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:51,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:29:51,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:51,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 12:29:51,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:51,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:51,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:51,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:51,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:29:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:52,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:29:52,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:29:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:52,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:29:52,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:52,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:29:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:52,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 12:29:52,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:29:52,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:52,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:29:52,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:29:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:52,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:52,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:52,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:52,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:29:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:52,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:52,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:52,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:52,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:52,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:29:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:52,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:29:52,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:52,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:29:52,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:29:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:29:52,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:29:52,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:52,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:52,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:29:52,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:29:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:29:52,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:29:52,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:29:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:29:52,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:29:52,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:29:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:29:52,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:29:52,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:29:52,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 12:29:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:52,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 12:29:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:29:52,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:29:52,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:29:52,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:29:52,367 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 12:29:52,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69167254] [2020-10-29 12:29:52,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:29:52,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 12:29:52,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405394529] [2020-10-29 12:29:52,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 12:29:52,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:29:52,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 12:29:52,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2020-10-29 12:29:52,369 INFO L87 Difference]: Start difference. First operand 108594 states and 146785 transitions. Second operand 18 states. [2020-10-29 12:29:52,718 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2020-10-29 12:29:52,916 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-29 12:29:53,343 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 114 [2020-10-29 12:29:53,859 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-29 12:29:54,020 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-29 12:29:54,556 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-29 12:29:55,578 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-10-29 12:29:56,141 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-29 12:29:56,303 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-29 12:29:57,009 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2020-10-29 12:29:57,579 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:29:58,002 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-10-29 12:30:00,251 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-29 12:30:09,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 12:30:09,889 INFO L93 Difference]: Finished difference Result 210824 states and 284857 transitions. [2020-10-29 12:30:09,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-29 12:30:09,890 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 111 [2020-10-29 12:30:09,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 12:30:10,463 INFO L225 Difference]: With dead ends: 210824 [2020-10-29 12:30:10,463 INFO L226 Difference]: Without dead ends: 121598 [2020-10-29 12:30:10,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 938 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=772, Invalid=3010, Unknown=0, NotChecked=0, Total=3782 [2020-10-29 12:30:10,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121598 states. [2020-10-29 12:30:21,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121598 to 115291. [2020-10-29 12:30:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115291 states. [2020-10-29 12:30:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115291 states to 115291 states and 155171 transitions. [2020-10-29 12:30:21,980 INFO L78 Accepts]: Start accepts. Automaton has 115291 states and 155171 transitions. Word has length 111 [2020-10-29 12:30:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 12:30:21,980 INFO L481 AbstractCegarLoop]: Abstraction has 115291 states and 155171 transitions. [2020-10-29 12:30:21,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 12:30:21,980 INFO L276 IsEmpty]: Start isEmpty. Operand 115291 states and 155171 transitions. [2020-10-29 12:30:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 12:30:21,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 12:30:21,993 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] [2020-10-29 12:30:21,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 12:30:21,994 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 12:30:21,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 12:30:21,994 INFO L82 PathProgramCache]: Analyzing trace with hash -88770518, now seen corresponding path program 1 times [2020-10-29 12:30:21,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 12:30:21,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360777837] [2020-10-29 12:30:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 12:30:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:22,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:22,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:22,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 12:30:26,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 12:30:26,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4082 [2020-10-29 12:30:26,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 12:30:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 12:30:26,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 12:30:26,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,289 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-29 12:30:26,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 12:30:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 12:30:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 12:30:26,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 12:30:26,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 12:30:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 12:30:26,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 12:30:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:26,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:26,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:26,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 12:30:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:26,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 12:30:26,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:26,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 12:30:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:26,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 12:30:26,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 12:30:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:26,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 12:30:26,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 12:30:26,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 12:30:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:26,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 12:30:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:26,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 12:30:26,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 12:30:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:26,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 12:30:26,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 12:30:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:26,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:26,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:26,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 12:30:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 12:30:26,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 12:30:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 12:30:26,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 12:30:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 12:30:26,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 12:30:26,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 12:30:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 12:30:26,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 12:30:26,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 12:30:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 12:30:26,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 12:30:26,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 12:30:26,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 12:30:26,708 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 12:30:26,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360777837] [2020-10-29 12:30:26,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 12:30:26,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 12:30:26,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249028054] [2020-10-29 12:30:26,709 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 12:30:26,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 12:30:26,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 12:30:26,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-10-29 12:30:26,710 INFO L87 Difference]: Start difference. First operand 115291 states and 155171 transitions. Second operand 18 states. [2020-10-29 12:30:26,913 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-29 12:30:27,097 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-29 12:30:27,584 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-29 12:30:28,271 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2020-10-29 12:30:28,882 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2020-10-29 12:30:29,536 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 117 [2020-10-29 12:30:30,437 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119 [2020-10-29 12:30:30,656 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-10-29 12:30:31,190 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119 [2020-10-29 12:30:31,424 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-29 12:30:34,043 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 114