/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/eca-rers2012/Problem14_label42.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 07:35:10,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 07:35:10,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 07:35:10,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 07:35:10,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 07:35:10,072 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 07:35:10,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 07:35:10,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 07:35:10,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 07:35:10,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 07:35:10,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 07:35:10,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 07:35:10,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 07:35:10,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 07:35:10,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 07:35:10,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 07:35:10,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 07:35:10,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 07:35:10,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 07:35:10,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 07:35:10,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 07:35:10,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 07:35:10,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 07:35:10,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 07:35:10,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 07:35:10,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 07:35:10,109 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 07:35:10,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 07:35:10,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 07:35:10,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 07:35:10,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 07:35:10,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 07:35:10,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 07:35:10,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 07:35:10,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 07:35:10,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 07:35:10,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 07:35:10,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 07:35:10,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 07:35:10,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 07:35:10,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 07:35:10,123 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 07:35:10,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 07:35:10,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 07:35:10,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 07:35:10,170 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 07:35:10,170 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 07:35:10,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 07:35:10,171 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 07:35:10,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 07:35:10,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 07:35:10,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 07:35:10,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 07:35:10,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 07:35:10,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 07:35:10,173 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 07:35:10,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 07:35:10,173 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 07:35:10,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 07:35:10,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 07:35:10,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 07:35:10,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 07:35:10,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 07:35:10,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 07:35:10,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 07:35:10,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 07:35:10,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 07:35:10,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 07:35:10,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 07:35:10,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 07:35:10,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 07:35:10,177 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 07:35:10,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 07:35:10,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 07:35:10,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 07:35:10,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 07:35:10,606 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 07:35:10,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label42.c [2020-10-29 07:35:10,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/200b432f1/ed3a4d7b26324adcb85ed49647e3189c/FLAG76d0324b6 [2020-10-29 07:35:11,505 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 07:35:11,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label42.c [2020-10-29 07:35:11,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/200b432f1/ed3a4d7b26324adcb85ed49647e3189c/FLAG76d0324b6 [2020-10-29 07:35:11,736 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/200b432f1/ed3a4d7b26324adcb85ed49647e3189c [2020-10-29 07:35:11,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 07:35:11,749 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 07:35:11,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 07:35:11,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 07:35:11,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 07:35:11,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:35:11" (1/1) ... [2020-10-29 07:35:11,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d41673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:11, skipping insertion in model container [2020-10-29 07:35:11,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 07:35:11" (1/1) ... [2020-10-29 07:35:11,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 07:35:11,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 07:35:12,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:35:12,469 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 07:35:12,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 07:35:12,678 INFO L208 MainTranslator]: Completed translation [2020-10-29 07:35:12,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12 WrapperNode [2020-10-29 07:35:12,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 07:35:12,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 07:35:12,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 07:35:12,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 07:35:12,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (1/1) ... [2020-10-29 07:35:12,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (1/1) ... [2020-10-29 07:35:12,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (1/1) ... [2020-10-29 07:35:12,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (1/1) ... [2020-10-29 07:35:12,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (1/1) ... [2020-10-29 07:35:12,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (1/1) ... [2020-10-29 07:35:12,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (1/1) ... [2020-10-29 07:35:12,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 07:35:12,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 07:35:12,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 07:35:12,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 07:35:12,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (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 07:35:12,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 07:35:12,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 07:35:12,903 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 07:35:12,903 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 07:35:12,903 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 07:35:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 07:35:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 07:35:12,903 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 07:35:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 07:35:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 07:35:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 07:35:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 07:35:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 07:35:12,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 07:35:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 07:35:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 07:35:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 07:35:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 07:35:12,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 07:35:14,673 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 07:35:14,673 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 07:35:14,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:35:14 BoogieIcfgContainer [2020-10-29 07:35:14,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 07:35:14,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 07:35:14,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 07:35:14,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 07:35:14,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 07:35:11" (1/3) ... [2020-10-29 07:35:14,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a350b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:35:14, skipping insertion in model container [2020-10-29 07:35:14,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 07:35:12" (2/3) ... [2020-10-29 07:35:14,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a350b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 07:35:14, skipping insertion in model container [2020-10-29 07:35:14,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 07:35:14" (3/3) ... [2020-10-29 07:35:14,687 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label42.c [2020-10-29 07:35:14,699 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 07:35:14,711 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 07:35:14,723 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 07:35:14,753 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 07:35:14,754 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 07:35:14,754 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 07:35:14,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 07:35:14,754 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 07:35:14,754 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 07:35:14,754 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 07:35:14,755 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 07:35:14,779 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-29 07:35:14,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-29 07:35:14,788 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:14,789 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] [2020-10-29 07:35:14,789 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:14,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:14,796 INFO L82 PathProgramCache]: Analyzing trace with hash 253389246, now seen corresponding path program 1 times [2020-10-29 07:35:14,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:14,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049194604] [2020-10-29 07:35:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:15,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:15,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:15,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 07:35:15,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-29 07:35:15,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:15,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:35:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:35:15,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-29 07:35:15,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 07:35:15,758 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 07:35:15,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:15,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:15,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:15,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:15,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:15,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:35:15,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:15,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:35:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:15,839 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 07:35:15,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049194604] [2020-10-29 07:35:15,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:35:15,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 07:35:15,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031836887] [2020-10-29 07:35:15,849 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:35:15,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:15,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:35:15,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:35:15,869 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-29 07:35:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:19,922 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-29 07:35:19,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:35:19,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2020-10-29 07:35:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:19,951 INFO L225 Difference]: With dead ends: 891 [2020-10-29 07:35:19,951 INFO L226 Difference]: Without dead ends: 565 [2020-10-29 07:35:19,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:19,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-29 07:35:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-29 07:35:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-29 07:35:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-29 07:35:20,086 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 49 [2020-10-29 07:35:20,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:20,087 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-29 07:35:20,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:35:20,087 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-29 07:35:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-29 07:35:20,096 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:20,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:35:20,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 07:35:20,097 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:20,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1568206039, now seen corresponding path program 1 times [2020-10-29 07:35:20,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:20,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887815983] [2020-10-29 07:35:20,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:20,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:20,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:21,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:21,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 07:35:21,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:35:21,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1227 [2020-10-29 07:35:21,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:21,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:35:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:35:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 07:35:21,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:21,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:21,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:21,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:21,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:21,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:35:21,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:21,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:21,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:21,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:35:21,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:21,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:21,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:21,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:21,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 07:35:21,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:21,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-29 07:35:21,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:21,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:21,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 07:35:21,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:35:21,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887815983] [2020-10-29 07:35:21,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:35:21,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 07:35:21,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008816349] [2020-10-29 07:35:21,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:35:21,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:21,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:35:21,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:35:21,915 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 8 states. [2020-10-29 07:35:24,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:24,748 INFO L93 Difference]: Finished difference Result 1322 states and 2176 transitions. [2020-10-29 07:35:24,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:35:24,750 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2020-10-29 07:35:24,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:24,763 INFO L225 Difference]: With dead ends: 1322 [2020-10-29 07:35:24,763 INFO L226 Difference]: Without dead ends: 769 [2020-10-29 07:35:24,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:35:24,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-29 07:35:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 567. [2020-10-29 07:35:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2020-10-29 07:35:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 820 transitions. [2020-10-29 07:35:24,846 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 820 transitions. Word has length 135 [2020-10-29 07:35:24,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:24,849 INFO L481 AbstractCegarLoop]: Abstraction has 567 states and 820 transitions. [2020-10-29 07:35:24,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:35:24,850 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 820 transitions. [2020-10-29 07:35:24,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-10-29 07:35:24,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:24,864 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:35:24,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 07:35:24,864 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:24,881 INFO L82 PathProgramCache]: Analyzing trace with hash -851356987, now seen corresponding path program 1 times [2020-10-29 07:35:24,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:24,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2065186602] [2020-10-29 07:35:24,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:24,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:25,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:25,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-29 07:35:26,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:35:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1692 [2020-10-29 07:35:26,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:35:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:35:26,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 07:35:26,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:26,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:35:26,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:26,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:35:26,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:26,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:26,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:26,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:26,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 07:35:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 07:35:27,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2065186602] [2020-10-29 07:35:27,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 07:35:27,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 07:35:27,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562719850] [2020-10-29 07:35:27,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:27,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:27,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:27,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:27,168 INFO L87 Difference]: Start difference. First operand 567 states and 820 transitions. Second operand 7 states. [2020-10-29 07:35:29,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:29,610 INFO L93 Difference]: Finished difference Result 1334 states and 1924 transitions. [2020-10-29 07:35:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:29,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2020-10-29 07:35:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:29,619 INFO L225 Difference]: With dead ends: 1334 [2020-10-29 07:35:29,619 INFO L226 Difference]: Without dead ends: 773 [2020-10-29 07:35:29,621 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:35:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-10-29 07:35:29,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 751. [2020-10-29 07:35:29,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-29 07:35:29,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1019 transitions. [2020-10-29 07:35:29,671 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1019 transitions. Word has length 144 [2020-10-29 07:35:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:29,675 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 1019 transitions. [2020-10-29 07:35:29,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:29,676 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1019 transitions. [2020-10-29 07:35:29,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-10-29 07:35:29,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:29,686 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:35:29,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 07:35:29,687 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:29,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:29,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1516421584, now seen corresponding path program 1 times [2020-10-29 07:35:29,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:29,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455905686] [2020-10-29 07:35:29,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:29,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:29,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:30,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:30,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:31,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-10-29 07:35:32,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:32,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2996 [2020-10-29 07:35:32,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:35:32,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:35:32,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 187 [2020-10-29 07:35:32,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:32,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:32,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:32,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:32,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:32,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:35:32,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:32,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:32,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:32,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:32,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:35:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:32,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:32,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:33,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:33,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:35:33,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-29 07:35:33,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:33,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:33,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-29 07:35:33,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:33,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 07:35:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:33,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:33,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:33,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:35:33,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:33,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-29 07:35:33,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:33,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:33,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:33,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:33,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 07:35:33,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:33,696 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 83 proven. 79 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:35:33,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455905686] [2020-10-29 07:35:33,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:33,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:33,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499409588] [2020-10-29 07:35:33,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:35:33,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:33,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:35:33,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:35:33,700 INFO L87 Difference]: Start difference. First operand 751 states and 1019 transitions. Second operand 8 states. [2020-10-29 07:35:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:36,474 INFO L93 Difference]: Finished difference Result 1747 states and 2453 transitions. [2020-10-29 07:35:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 07:35:36,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2020-10-29 07:35:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:36,485 INFO L225 Difference]: With dead ends: 1747 [2020-10-29 07:35:36,485 INFO L226 Difference]: Without dead ends: 1184 [2020-10-29 07:35:36,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2020-10-29 07:35:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2020-10-29 07:35:36,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1127. [2020-10-29 07:35:36,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2020-10-29 07:35:36,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1440 transitions. [2020-10-29 07:35:36,558 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1440 transitions. Word has length 228 [2020-10-29 07:35:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:36,560 INFO L481 AbstractCegarLoop]: Abstraction has 1127 states and 1440 transitions. [2020-10-29 07:35:36,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:35:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1440 transitions. [2020-10-29 07:35:36,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-29 07:35:36,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:36,564 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:35:36,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 07:35:36,565 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:36,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:36,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1475828994, now seen corresponding path program 1 times [2020-10-29 07:35:36,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:36,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279761269] [2020-10-29 07:35:36,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:36,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:36,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:37,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:38,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:39,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:41,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-10-29 07:35:41,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:41,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 07:35:41,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:41,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:41,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 07:35:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 07:35:41,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-29 07:35:41,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:41,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:41,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:41,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:41,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:41,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:41,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 07:35:41,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:41,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:41,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:41,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:41,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 07:35:41,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:41,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:41,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:41,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:41,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:41,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:41,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:35:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 07:35:41,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:41,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:35:41,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:35:42,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:35:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:42,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:42,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:42,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:35:42,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:42,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 07:35:42,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:42,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:42,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-29 07:35:42,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 07:35:42,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279761269] [2020-10-29 07:35:42,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:42,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:42,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474288378] [2020-10-29 07:35:42,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:42,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:42,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:42,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:42,478 INFO L87 Difference]: Start difference. First operand 1127 states and 1440 transitions. Second operand 7 states. [2020-10-29 07:35:45,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:45,170 INFO L93 Difference]: Finished difference Result 2276 states and 2990 transitions. [2020-10-29 07:35:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:45,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-10-29 07:35:45,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:45,180 INFO L225 Difference]: With dead ends: 2276 [2020-10-29 07:35:45,180 INFO L226 Difference]: Without dead ends: 1337 [2020-10-29 07:35:45,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:35:45,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2020-10-29 07:35:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1313. [2020-10-29 07:35:45,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1313 states. [2020-10-29 07:35:45,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1683 transitions. [2020-10-29 07:35:45,239 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1683 transitions. Word has length 253 [2020-10-29 07:35:45,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:45,240 INFO L481 AbstractCegarLoop]: Abstraction has 1313 states and 1683 transitions. [2020-10-29 07:35:45,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:45,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1683 transitions. [2020-10-29 07:35:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2020-10-29 07:35:45,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:45,250 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:35:45,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 07:35:45,250 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:45,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:45,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1151946947, now seen corresponding path program 1 times [2020-10-29 07:35:45,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:45,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652266532] [2020-10-29 07:35:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:45,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:45,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:45,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:46,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:50,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:50,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 439 [2020-10-29 07:35:50,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:35:50,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:35:50,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:50,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-29 07:35:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:35:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:50,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:50,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:50,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:50,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:50,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:50,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 07:35:50,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:50,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:50,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:50,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:50,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:50,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:50,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:50,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:50,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:35:50,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:50,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 07:35:50,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:50,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:50,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:35:50,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:50,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:35:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:50,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:50,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:50,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:35:50,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:50,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-29 07:35:50,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:50,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:50,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:35:50,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:35:50,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:51,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-29 07:35:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:51,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:51,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:51,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 07:35:51,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:51,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 07:35:51,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:51,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:51,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 07:35:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 233 proven. 85 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-29 07:35:51,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652266532] [2020-10-29 07:35:51,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:35:51,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:35:51,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735232657] [2020-10-29 07:35:51,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:35:51,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:35:51,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:35:51,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:35:51,409 INFO L87 Difference]: Start difference. First operand 1313 states and 1683 transitions. Second operand 7 states. [2020-10-29 07:35:54,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:35:54,332 INFO L93 Difference]: Finished difference Result 3040 states and 4069 transitions. [2020-10-29 07:35:54,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:35:54,336 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 423 [2020-10-29 07:35:54,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:35:54,352 INFO L225 Difference]: With dead ends: 3040 [2020-10-29 07:35:54,352 INFO L226 Difference]: Without dead ends: 1915 [2020-10-29 07:35:54,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:35:54,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2020-10-29 07:35:54,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1879. [2020-10-29 07:35:54,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1879 states. [2020-10-29 07:35:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 2395 transitions. [2020-10-29 07:35:54,434 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 2395 transitions. Word has length 423 [2020-10-29 07:35:54,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:35:54,435 INFO L481 AbstractCegarLoop]: Abstraction has 1879 states and 2395 transitions. [2020-10-29 07:35:54,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:35:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 2395 transitions. [2020-10-29 07:35:54,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-10-29 07:35:54,449 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:35:54,450 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 07:35:54,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 07:35:54,450 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:35:54,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:35:54,451 INFO L82 PathProgramCache]: Analyzing trace with hash 343009064, now seen corresponding path program 1 times [2020-10-29 07:35:54,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:35:54,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254152072] [2020-10-29 07:35:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:35:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:54,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:54,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:58,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:58,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:59,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:59,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 549 [2020-10-29 07:35:59,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:35:59,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 07:35:59,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:59,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:35:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-29 07:35:59,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 07:35:59,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 07:35:59,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:35:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:59,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:59,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:59,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:35:59,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:59,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 07:35:59,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:59,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:35:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:59,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:35:59,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:59,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:35:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:59,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:35:59,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:35:59,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 07:35:59,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:35:59,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 07:35:59,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:35:59,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:35:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:35:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:35:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 07:35:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:35:59,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 07:35:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:35:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:00,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:00,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:36:00,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:00,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-29 07:36:00,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:00,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:00,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-10-29 07:36:00,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:00,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-29 07:36:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:00,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:00,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:00,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:00,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 07:36:00,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:00,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:36:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:00,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-29 07:36:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:00,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:00,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:00,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 07:36:00,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:00,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:36:00,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:00,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 07:36:00,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:00,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:36:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 253 proven. 215 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-10-29 07:36:01,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254152072] [2020-10-29 07:36:01,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:01,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:36:01,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636804304] [2020-10-29 07:36:01,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:36:01,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:01,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:36:01,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:36:01,504 INFO L87 Difference]: Start difference. First operand 1879 states and 2395 transitions. Second operand 8 states. [2020-10-29 07:36:05,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:05,028 INFO L93 Difference]: Finished difference Result 4154 states and 5302 transitions. [2020-10-29 07:36:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 07:36:05,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 531 [2020-10-29 07:36:05,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:05,039 INFO L225 Difference]: With dead ends: 4154 [2020-10-29 07:36:05,040 INFO L226 Difference]: Without dead ends: 2081 [2020-10-29 07:36:05,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-29 07:36:05,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2020-10-29 07:36:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2055. [2020-10-29 07:36:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2055 states. [2020-10-29 07:36:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2055 states to 2055 states and 2245 transitions. [2020-10-29 07:36:05,109 INFO L78 Accepts]: Start accepts. Automaton has 2055 states and 2245 transitions. Word has length 531 [2020-10-29 07:36:05,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:05,110 INFO L481 AbstractCegarLoop]: Abstraction has 2055 states and 2245 transitions. [2020-10-29 07:36:05,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:36:05,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2055 states and 2245 transitions. [2020-10-29 07:36:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2020-10-29 07:36:05,121 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:05,122 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 07:36:05,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 07:36:05,123 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:05,123 INFO L82 PathProgramCache]: Analyzing trace with hash -2088384074, now seen corresponding path program 1 times [2020-10-29 07:36:05,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:05,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211015556] [2020-10-29 07:36:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:05,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:05,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:05,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:05,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:10,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:10,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 574 [2020-10-29 07:36:10,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:36:10,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-29 07:36:10,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:10,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 254 [2020-10-29 07:36:10,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:36:10,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:10,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:10,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:10,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:10,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:10,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:36:10,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:10,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:10,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:10,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:10,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:10,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:10,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:10,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:10,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:10,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:10,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:10,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:10,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:10,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:10,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:10,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:10,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:36:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:10,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:10,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:10,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:36:10,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:10,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 07:36:10,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:10,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:10,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 07:36:10,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-29 07:36:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:10,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:10,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:10,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:10,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:10,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-29 07:36:10,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:10,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:11,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2020-10-29 07:36:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:11,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:11,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:11,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 07:36:11,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:11,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 07:36:11,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:11,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:11,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:11,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-29 07:36:11,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:11,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:11,476 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 413 proven. 85 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2020-10-29 07:36:11,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211015556] [2020-10-29 07:36:11,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:11,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:11,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745693495] [2020-10-29 07:36:11,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:11,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:11,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:11,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:11,479 INFO L87 Difference]: Start difference. First operand 2055 states and 2245 transitions. Second operand 7 states. [2020-10-29 07:36:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:13,967 INFO L93 Difference]: Finished difference Result 5484 states and 6261 transitions. [2020-10-29 07:36:13,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:36:13,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 556 [2020-10-29 07:36:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:13,986 INFO L225 Difference]: With dead ends: 5484 [2020-10-29 07:36:13,986 INFO L226 Difference]: Without dead ends: 3435 [2020-10-29 07:36:13,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:36:13,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2020-10-29 07:36:14,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 2809. [2020-10-29 07:36:14,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2809 states. [2020-10-29 07:36:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 3102 transitions. [2020-10-29 07:36:14,099 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 3102 transitions. Word has length 556 [2020-10-29 07:36:14,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:14,100 INFO L481 AbstractCegarLoop]: Abstraction has 2809 states and 3102 transitions. [2020-10-29 07:36:14,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:14,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 3102 transitions. [2020-10-29 07:36:14,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-10-29 07:36:14,114 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:14,115 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:36:14,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 07:36:14,116 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:14,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:14,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1922311290, now seen corresponding path program 1 times [2020-10-29 07:36:14,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:14,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946101736] [2020-10-29 07:36:14,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:14,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:14,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:19,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:19,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 609 [2020-10-29 07:36:19,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:36:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-29 07:36:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:19,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 280 [2020-10-29 07:36:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:36:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:19,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:19,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:19,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:19,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:19,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:19,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:36:19,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:19,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:19,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:19,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:19,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:19,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:19,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:19,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:19,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:19,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:19,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:36:19,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:19,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:19,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:19,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:19,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:36:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:19,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:19,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:19,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:19,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:19,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 07:36:19,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:19,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:19,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-29 07:36:19,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:19,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2020-10-29 07:36:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:19,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:19,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:19,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:19,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:19,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-29 07:36:19,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:19,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:19,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:19,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:19,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2020-10-29 07:36:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:19,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:19,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 07:36:19,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:19,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 439 proven. 94 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2020-10-29 07:36:20,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946101736] [2020-10-29 07:36:20,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:20,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:20,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496749953] [2020-10-29 07:36:20,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:20,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:20,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:20,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:20,208 INFO L87 Difference]: Start difference. First operand 2809 states and 3102 transitions. Second operand 7 states. [2020-10-29 07:36:22,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:22,522 INFO L93 Difference]: Finished difference Result 6378 states and 7176 transitions. [2020-10-29 07:36:22,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:36:22,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 591 [2020-10-29 07:36:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:22,545 INFO L225 Difference]: With dead ends: 6378 [2020-10-29 07:36:22,545 INFO L226 Difference]: Without dead ends: 3759 [2020-10-29 07:36:22,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:36:22,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2020-10-29 07:36:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3743. [2020-10-29 07:36:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3743 states. [2020-10-29 07:36:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 4209 transitions. [2020-10-29 07:36:22,664 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 4209 transitions. Word has length 591 [2020-10-29 07:36:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:22,665 INFO L481 AbstractCegarLoop]: Abstraction has 3743 states and 4209 transitions. [2020-10-29 07:36:22,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 4209 transitions. [2020-10-29 07:36:22,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2020-10-29 07:36:22,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:22,685 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 07:36:22,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 07:36:22,685 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:22,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:22,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1531736703, now seen corresponding path program 1 times [2020-10-29 07:36:22,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:22,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789306073] [2020-10-29 07:36:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:22,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:23,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:25,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:27,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 658 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 329 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:36:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:27,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:27,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:27,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:27,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:27,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:27,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:27,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:27,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:27,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:27,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:27,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:27,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:27,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:27,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:27,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:27,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:27,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:27,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:36:27,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:27,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:27,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:36:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:27,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:27,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:27,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 07:36:27,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:27,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:36:27,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:27,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:27,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:27,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:28,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2020-10-29 07:36:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:28,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:28,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 07:36:28,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:28,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2020-10-29 07:36:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:28,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:28,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:28,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:28,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 07:36:28,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:28,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:28,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:28,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2020-10-29 07:36:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:28,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:28,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:28,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:36:28,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:28,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:28,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:28,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 07:36:28,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:28,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 533 proven. 94 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2020-10-29 07:36:28,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789306073] [2020-10-29 07:36:28,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:28,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:28,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003957394] [2020-10-29 07:36:28,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:28,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:28,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:28,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:28,630 INFO L87 Difference]: Start difference. First operand 3743 states and 4209 transitions. Second operand 7 states. [2020-10-29 07:36:31,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:31,604 INFO L93 Difference]: Finished difference Result 9506 states and 10654 transitions. [2020-10-29 07:36:31,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:36:31,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 638 [2020-10-29 07:36:31,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:31,628 INFO L225 Difference]: With dead ends: 9506 [2020-10-29 07:36:31,629 INFO L226 Difference]: Without dead ends: 4831 [2020-10-29 07:36:31,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:36:31,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4831 states. [2020-10-29 07:36:31,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4831 to 4461. [2020-10-29 07:36:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4461 states. [2020-10-29 07:36:31,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4461 states to 4461 states and 4892 transitions. [2020-10-29 07:36:31,774 INFO L78 Accepts]: Start accepts. Automaton has 4461 states and 4892 transitions. Word has length 638 [2020-10-29 07:36:31,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:31,775 INFO L481 AbstractCegarLoop]: Abstraction has 4461 states and 4892 transitions. [2020-10-29 07:36:31,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 4461 states and 4892 transitions. [2020-10-29 07:36:31,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2020-10-29 07:36:31,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:31,785 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:36:31,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 07:36:31,786 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:31,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1190718849, now seen corresponding path program 1 times [2020-10-29 07:36:31,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:31,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551710630] [2020-10-29 07:36:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:31,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:32,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:32,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:34,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:36,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:36,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 687 [2020-10-29 07:36:36,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:36:36,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-29 07:36:36,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:36,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:36,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-29 07:36:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 162 [2020-10-29 07:36:36,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:36,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:36,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:36,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:36,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:36,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:36,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:36,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:36,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:36,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:36,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:37,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:37,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:37,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:36:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:37,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-29 07:36:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:37,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:37,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-29 07:36:37,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 07:36:37,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:37,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:37,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-29 07:36:37,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:37,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2020-10-29 07:36:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:37,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:37,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:37,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:37,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:36:37,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:37,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:36:37,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:37,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:37,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 07:36:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:37,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:37,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2020-10-29 07:36:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:37,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:37,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:37,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1171 backedges. 323 proven. 323 refuted. 0 times theorem prover too weak. 525 trivial. 0 not checked. [2020-10-29 07:36:37,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551710630] [2020-10-29 07:36:37,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:37,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 07:36:37,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212277213] [2020-10-29 07:36:37,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 07:36:37,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:37,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 07:36:37,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:36:37,914 INFO L87 Difference]: Start difference. First operand 4461 states and 4892 transitions. Second operand 8 states. [2020-10-29 07:36:40,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:40,551 INFO L93 Difference]: Finished difference Result 10938 states and 12186 transitions. [2020-10-29 07:36:40,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:36:40,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 667 [2020-10-29 07:36:40,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:40,580 INFO L225 Difference]: With dead ends: 10938 [2020-10-29 07:36:40,581 INFO L226 Difference]: Without dead ends: 6667 [2020-10-29 07:36:40,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-29 07:36:40,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2020-10-29 07:36:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 5749. [2020-10-29 07:36:40,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5749 states. [2020-10-29 07:36:40,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5749 states to 5749 states and 6364 transitions. [2020-10-29 07:36:40,769 INFO L78 Accepts]: Start accepts. Automaton has 5749 states and 6364 transitions. Word has length 667 [2020-10-29 07:36:40,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:40,769 INFO L481 AbstractCegarLoop]: Abstraction has 5749 states and 6364 transitions. [2020-10-29 07:36:40,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 07:36:40,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5749 states and 6364 transitions. [2020-10-29 07:36:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2020-10-29 07:36:40,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:40,782 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:36:40,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 07:36:40,783 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:40,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:40,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1996948236, now seen corresponding path program 1 times [2020-10-29 07:36:40,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:40,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [58981305] [2020-10-29 07:36:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:40,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:41,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:42,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:43,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:44,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:45,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:45,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 833 [2020-10-29 07:36:45,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:36:45,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-29 07:36:45,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:45,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:45,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:45,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-29 07:36:45,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:45,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:46,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:46,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:46,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:46,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:46,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:36:46,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:46,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:46,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:46,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:46,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:46,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:46,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:46,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:46,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:36:46,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:46,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:46,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:46,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:46,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:46,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:46,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:46,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:46,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 07:36:46,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:46,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:46,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 07:36:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:46,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:46,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:46,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:46,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:36:46,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:46,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 07:36:46,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:46,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:46,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:36:46,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:46,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-29 07:36:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:46,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:46,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:46,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:46,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:46,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:36:46,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:46,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:36:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:46,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:46,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-29 07:36:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:46,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:46,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:46,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:46,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 659 [2020-10-29 07:36:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:46,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:36:46,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:46,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:47,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1791 backedges. 488 proven. 357 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2020-10-29 07:36:47,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [58981305] [2020-10-29 07:36:47,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:47,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:47,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934652629] [2020-10-29 07:36:47,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:47,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:47,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:47,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:47,177 INFO L87 Difference]: Start difference. First operand 5749 states and 6364 transitions. Second operand 7 states. [2020-10-29 07:36:48,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:48,843 INFO L93 Difference]: Finished difference Result 12042 states and 13343 transitions. [2020-10-29 07:36:48,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:36:48,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 811 [2020-10-29 07:36:48,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:48,873 INFO L225 Difference]: With dead ends: 12042 [2020-10-29 07:36:48,873 INFO L226 Difference]: Without dead ends: 6299 [2020-10-29 07:36:48,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:36:48,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6299 states. [2020-10-29 07:36:49,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6299 to 6113. [2020-10-29 07:36:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6113 states. [2020-10-29 07:36:49,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6113 states to 6113 states and 6761 transitions. [2020-10-29 07:36:49,037 INFO L78 Accepts]: Start accepts. Automaton has 6113 states and 6761 transitions. Word has length 811 [2020-10-29 07:36:49,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:49,038 INFO L481 AbstractCegarLoop]: Abstraction has 6113 states and 6761 transitions. [2020-10-29 07:36:49,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:49,038 INFO L276 IsEmpty]: Start isEmpty. Operand 6113 states and 6761 transitions. [2020-10-29 07:36:49,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 929 [2020-10-29 07:36:49,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:49,053 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:36:49,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 07:36:49,053 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:49,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:49,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1258352147, now seen corresponding path program 1 times [2020-10-29 07:36:49,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:49,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464601214] [2020-10-29 07:36:49,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:49,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:49,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:49,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:54,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 952 [2020-10-29 07:36:54,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:36:54,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-29 07:36:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:54,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-29 07:36:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:36:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:54,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:36:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:54,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:54,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:36:54,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:36:54,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:54,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:54,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:54,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:54,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:36:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:54,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:54,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:36:54,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:54,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:36:54,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:54,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:54,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:54,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:54,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:36:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:54,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:54,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:36:54,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:54,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:36:54,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:54,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:54,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:54,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:36:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:54,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:54,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:36:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:54,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:36:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:36:54,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:55,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-29 07:36:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:55,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:55,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:55,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:36:55,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:55,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:36:55,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:55,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-29 07:36:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:55,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-29 07:36:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:55,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:55,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-29 07:36:55,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:55,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-29 07:36:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:55,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:55,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:36:55,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:36:55,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:36:55,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:36:55,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:36:55,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:36:55,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:36:55,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:36:55,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:36:55,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:36:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2472 backedges. 660 proven. 357 refuted. 0 times theorem prover too weak. 1455 trivial. 0 not checked. [2020-10-29 07:36:55,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [464601214] [2020-10-29 07:36:55,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:36:55,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:36:55,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199278984] [2020-10-29 07:36:55,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:36:55,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:36:55,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:36:55,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:36:55,759 INFO L87 Difference]: Start difference. First operand 6113 states and 6761 transitions. Second operand 7 states. [2020-10-29 07:36:57,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:36:57,757 INFO L93 Difference]: Finished difference Result 12412 states and 13735 transitions. [2020-10-29 07:36:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:36:57,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 928 [2020-10-29 07:36:57,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:36:57,779 INFO L225 Difference]: With dead ends: 12412 [2020-10-29 07:36:57,779 INFO L226 Difference]: Without dead ends: 6305 [2020-10-29 07:36:57,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 07:36:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6305 states. [2020-10-29 07:36:57,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6305 to 5751. [2020-10-29 07:36:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5751 states. [2020-10-29 07:36:57,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 6359 transitions. [2020-10-29 07:36:57,935 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 6359 transitions. Word has length 928 [2020-10-29 07:36:57,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:36:57,937 INFO L481 AbstractCegarLoop]: Abstraction has 5751 states and 6359 transitions. [2020-10-29 07:36:57,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:36:57,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 6359 transitions. [2020-10-29 07:36:57,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1010 [2020-10-29 07:36:57,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:36:57,960 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:36:57,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 07:36:57,961 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:36:57,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:36:57,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1339916020, now seen corresponding path program 1 times [2020-10-29 07:36:57,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:36:57,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47664176] [2020-10-29 07:36:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:36:58,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:36:58,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:58,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:36:59,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1035 [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3216 [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:01,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-29 07:37:01,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 07:37:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:01,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:01,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:01,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:01,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:37:01,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:01,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:01,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:01,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:01,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:37:01,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:01,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:01,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:01,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:01,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:01,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 07:37:01,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:01,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:01,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:01,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:37:01,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:01,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:01,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:01,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:01,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:01,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:01,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:37:01,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:01,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:01,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:01,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:01,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:01,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:01,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:01,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:02,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:02,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:02,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 07:37:02,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:02,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:02,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-29 07:37:02,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:02,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:02,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:02,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:02,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:37:02,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:02,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3075 backedges. 1046 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-29 07:37:02,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47664176] [2020-10-29 07:37:02,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:02,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:02,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536764938] [2020-10-29 07:37:02,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:02,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:02,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:02,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:02,678 INFO L87 Difference]: Start difference. First operand 5751 states and 6359 transitions. Second operand 7 states. [2020-10-29 07:37:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:04,765 INFO L93 Difference]: Finished difference Result 11506 states and 12723 transitions. [2020-10-29 07:37:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:37:04,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1009 [2020-10-29 07:37:04,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:04,788 INFO L225 Difference]: With dead ends: 11506 [2020-10-29 07:37:04,789 INFO L226 Difference]: Without dead ends: 5761 [2020-10-29 07:37:04,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:37:04,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5761 states. [2020-10-29 07:37:04,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5761 to 5389. [2020-10-29 07:37:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5389 states. [2020-10-29 07:37:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 5850 transitions. [2020-10-29 07:37:04,918 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 5850 transitions. Word has length 1009 [2020-10-29 07:37:04,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:04,920 INFO L481 AbstractCegarLoop]: Abstraction has 5389 states and 5850 transitions. [2020-10-29 07:37:04,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 5850 transitions. [2020-10-29 07:37:04,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1074 [2020-10-29 07:37:04,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:04,938 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:37:04,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 07:37:04,939 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:04,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:04,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1897775244, now seen corresponding path program 1 times [2020-10-29 07:37:04,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:04,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504884248] [2020-10-29 07:37:04,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:05,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:05,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:08,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:09,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1099 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 359 [2020-10-29 07:37:10,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:10,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:10,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:10,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:10,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:10,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:10,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:10,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 07:37:10,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:10,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:10,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:37:10,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:10,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:10,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 07:37:10,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:10,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:10,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:37:10,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:10,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:10,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:10,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:10,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:37:10,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:10,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:10,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:37:10,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:10,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:10,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:10,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:10,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:10,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-29 07:37:10,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:10,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:37:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:37:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:11,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:11,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:11,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:11,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:11,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 07:37:11,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 07:37:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:11,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 07:37:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:11,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3209 backedges. 1669 proven. 6 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2020-10-29 07:37:11,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504884248] [2020-10-29 07:37:11,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:11,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 07:37:11,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185315960] [2020-10-29 07:37:11,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 07:37:11,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:11,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 07:37:11,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-29 07:37:11,883 INFO L87 Difference]: Start difference. First operand 5389 states and 5850 transitions. Second operand 9 states. [2020-10-29 07:37:15,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:15,129 INFO L93 Difference]: Finished difference Result 12248 states and 13300 transitions. [2020-10-29 07:37:15,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 07:37:15,138 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1073 [2020-10-29 07:37:15,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:15,168 INFO L225 Difference]: With dead ends: 12248 [2020-10-29 07:37:15,168 INFO L226 Difference]: Without dead ends: 6865 [2020-10-29 07:37:15,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2020-10-29 07:37:15,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2020-10-29 07:37:15,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 6121. [2020-10-29 07:37:15,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6121 states. [2020-10-29 07:37:15,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 6631 transitions. [2020-10-29 07:37:15,314 INFO L78 Accepts]: Start accepts. Automaton has 6121 states and 6631 transitions. Word has length 1073 [2020-10-29 07:37:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:15,315 INFO L481 AbstractCegarLoop]: Abstraction has 6121 states and 6631 transitions. [2020-10-29 07:37:15,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 07:37:15,317 INFO L276 IsEmpty]: Start isEmpty. Operand 6121 states and 6631 transitions. [2020-10-29 07:37:15,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1240 [2020-10-29 07:37:15,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:15,339 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-29 07:37:15,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 07:37:15,340 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:15,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1433550706, now seen corresponding path program 1 times [2020-10-29 07:37:15,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:15,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [663430050] [2020-10-29 07:37:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:15,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:16,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:18,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:19,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1269 [2020-10-29 07:37:20,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:37:20,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-29 07:37:20,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 07:37:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-29 07:37:20,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 416 [2020-10-29 07:37:20,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:20,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:37:20,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:20,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:20,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:20,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:20,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:20,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:20,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:20,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:20,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:20,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:21,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:21,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:21,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:21,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:21,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:37:21,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:21,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:21,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:21,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 07:37:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:21,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:21,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 07:37:21,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 07:37:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:21,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:37:21,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:21,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:21,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-29 07:37:21,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:21,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 07:37:21,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:37:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:21,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:37:21,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 07:37:21,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:21,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:37:21,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:21,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1087 [2020-10-29 07:37:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:21,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:21,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:21,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:37:21,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:21,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:37:21,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:21,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-29 07:37:21,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:23,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4932 backedges. 2538 proven. 437 refuted. 0 times theorem prover too weak. 1957 trivial. 0 not checked. [2020-10-29 07:37:23,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [663430050] [2020-10-29 07:37:23,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:23,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 07:37:23,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135917554] [2020-10-29 07:37:23,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 07:37:23,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:23,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 07:37:23,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:37:23,126 INFO L87 Difference]: Start difference. First operand 6121 states and 6631 transitions. Second operand 11 states. [2020-10-29 07:37:27,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:27,385 INFO L93 Difference]: Finished difference Result 13158 states and 14224 transitions. [2020-10-29 07:37:27,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 07:37:27,391 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1239 [2020-10-29 07:37:27,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:27,411 INFO L225 Difference]: With dead ends: 13158 [2020-10-29 07:37:27,412 INFO L226 Difference]: Without dead ends: 7043 [2020-10-29 07:37:27,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2020-10-29 07:37:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7043 states. [2020-10-29 07:37:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7043 to 6121. [2020-10-29 07:37:27,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6121 states. [2020-10-29 07:37:27,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6121 states to 6121 states and 6617 transitions. [2020-10-29 07:37:27,567 INFO L78 Accepts]: Start accepts. Automaton has 6121 states and 6617 transitions. Word has length 1239 [2020-10-29 07:37:27,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:27,569 INFO L481 AbstractCegarLoop]: Abstraction has 6121 states and 6617 transitions. [2020-10-29 07:37:27,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 07:37:27,569 INFO L276 IsEmpty]: Start isEmpty. Operand 6121 states and 6617 transitions. [2020-10-29 07:37:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1386 [2020-10-29 07:37:27,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:27,596 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:37:27,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 07:37:27,597 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:27,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:27,598 INFO L82 PathProgramCache]: Analyzing trace with hash 425718429, now seen corresponding path program 1 times [2020-10-29 07:37:27,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:27,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1491289534] [2020-10-29 07:37:27,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:28,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:28,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:30,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:31,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1417 [2020-10-29 07:37:33,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:37:33,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5331 [2020-10-29 07:37:33,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:33,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1253 [2020-10-29 07:37:33,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 07:37:33,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:33,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:33,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:33,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:33,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:33,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:37:33,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:33,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:37:33,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:33,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:33,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:33,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:33,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:33,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:33,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 07:37:33,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:33,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:33,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:33,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:33,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:33,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:33,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:34,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:34,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:34,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:34,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:34,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:37:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:34,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:34,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:34,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:37:34,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:34,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:37:34,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:34,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:34,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:34,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:34,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:37:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:34,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:34,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:34,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:34,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 07:37:34,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:34,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:34,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 07:37:34,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:34,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-29 07:37:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:34,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:34,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:34,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:37:34,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:34,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-29 07:37:34,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:34,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:34,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:34,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:34,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 07:37:34,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6116 backedges. 1508 proven. 2 refuted. 0 times theorem prover too weak. 4606 trivial. 0 not checked. [2020-10-29 07:37:35,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1491289534] [2020-10-29 07:37:35,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:35,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:35,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400829496] [2020-10-29 07:37:35,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:35,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:35,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:35,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:35,358 INFO L87 Difference]: Start difference. First operand 6121 states and 6617 transitions. Second operand 7 states. [2020-10-29 07:37:37,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:37,232 INFO L93 Difference]: Finished difference Result 12434 states and 13462 transitions. [2020-10-29 07:37:37,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:37:37,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1385 [2020-10-29 07:37:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:37,250 INFO L225 Difference]: With dead ends: 12434 [2020-10-29 07:37:37,250 INFO L226 Difference]: Without dead ends: 6319 [2020-10-29 07:37:37,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:37:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2020-10-29 07:37:37,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 6303. [2020-10-29 07:37:37,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6303 states. [2020-10-29 07:37:37,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6303 states to 6303 states and 6815 transitions. [2020-10-29 07:37:37,401 INFO L78 Accepts]: Start accepts. Automaton has 6303 states and 6815 transitions. Word has length 1385 [2020-10-29 07:37:37,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:37,402 INFO L481 AbstractCegarLoop]: Abstraction has 6303 states and 6815 transitions. [2020-10-29 07:37:37,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6303 states and 6815 transitions. [2020-10-29 07:37:37,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1450 [2020-10-29 07:37:37,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:37,433 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 07:37:37,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 07:37:37,433 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:37,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:37,434 INFO L82 PathProgramCache]: Analyzing trace with hash 517685789, now seen corresponding path program 1 times [2020-10-29 07:37:37,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:37,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394675863] [2020-10-29 07:37:37,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:37,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:38,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1481 [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1995 [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:39,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-29 07:37:39,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 07:37:39,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:39,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:39,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:39,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:39,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:39,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:39,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:37:39,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:39,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:39,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:39,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:39,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:39,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:39,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:39,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:39,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:37:39,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:39,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:39,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:39,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:39,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:39,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:39,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:39,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:37:39,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:39,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:39,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:39,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:39,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:40,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:37:40,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:40,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:40,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:40,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:37:40,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:40,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:37:40,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:37:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:37:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:37:40,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 07:37:40,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:40,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:40,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:37:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:40,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:40,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:40,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:37:40,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:40,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 07:37:40,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:40,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:40,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:37:40,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 6258 backedges. 470 proven. 11 refuted. 0 times theorem prover too weak. 5777 trivial. 0 not checked. [2020-10-29 07:37:41,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394675863] [2020-10-29 07:37:41,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:41,672 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 07:37:41,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232932056] [2020-10-29 07:37:41,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 07:37:41,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:41,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 07:37:41,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 07:37:41,674 INFO L87 Difference]: Start difference. First operand 6303 states and 6815 transitions. Second operand 5 states. [2020-10-29 07:37:43,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:43,363 INFO L93 Difference]: Finished difference Result 12606 states and 13632 transitions. [2020-10-29 07:37:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 07:37:43,368 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1449 [2020-10-29 07:37:43,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:43,384 INFO L225 Difference]: With dead ends: 12606 [2020-10-29 07:37:43,384 INFO L226 Difference]: Without dead ends: 6309 [2020-10-29 07:37:43,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:37:43,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6309 states. [2020-10-29 07:37:43,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6309 to 6303. [2020-10-29 07:37:43,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6303 states. [2020-10-29 07:37:43,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6303 states to 6303 states and 6798 transitions. [2020-10-29 07:37:43,519 INFO L78 Accepts]: Start accepts. Automaton has 6303 states and 6798 transitions. Word has length 1449 [2020-10-29 07:37:43,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:43,521 INFO L481 AbstractCegarLoop]: Abstraction has 6303 states and 6798 transitions. [2020-10-29 07:37:43,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 07:37:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6303 states and 6798 transitions. [2020-10-29 07:37:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1562 [2020-10-29 07:37:43,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:43,555 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:37:43,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 07:37:43,555 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:43,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:43,556 INFO L82 PathProgramCache]: Analyzing trace with hash 359109232, now seen corresponding path program 1 times [2020-10-29 07:37:43,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:43,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57522560] [2020-10-29 07:37:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:43,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:44,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:44,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:47,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:48,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1595 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1367 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:37:48,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:37:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:37:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:37:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:37:49,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:49,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:37:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:37:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:37:49,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:37:49,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:37:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:37:49,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 07:37:49,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:37:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:37:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:37:49,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:37:49,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:37:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:49,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 07:37:49,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:37:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:37:49,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 07:37:49,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 07:37:49,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:37:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:37:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-29 07:37:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:49,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:37:49,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 07:37:49,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:49,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-29 07:37:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:49,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:50,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 07:37:50,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:37:51,443 INFO L134 CoverageAnalysis]: Checked inductivity of 7494 backedges. 1840 proven. 2 refuted. 0 times theorem prover too weak. 5652 trivial. 0 not checked. [2020-10-29 07:37:51,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [57522560] [2020-10-29 07:37:51,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:37:51,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:37:51,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710366084] [2020-10-29 07:37:51,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:37:51,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:37:51,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:37:51,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:37:51,446 INFO L87 Difference]: Start difference. First operand 6303 states and 6798 transitions. Second operand 7 states. [2020-10-29 07:37:54,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:37:54,323 INFO L93 Difference]: Finished difference Result 14082 states and 15276 transitions. [2020-10-29 07:37:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:37:54,324 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1561 [2020-10-29 07:37:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:37:54,337 INFO L225 Difference]: With dead ends: 14082 [2020-10-29 07:37:54,337 INFO L226 Difference]: Without dead ends: 7785 [2020-10-29 07:37:54,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:37:54,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7785 states. [2020-10-29 07:37:54,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7785 to 7231. [2020-10-29 07:37:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7231 states. [2020-10-29 07:37:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7231 states to 7231 states and 7806 transitions. [2020-10-29 07:37:54,502 INFO L78 Accepts]: Start accepts. Automaton has 7231 states and 7806 transitions. Word has length 1561 [2020-10-29 07:37:54,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:37:54,503 INFO L481 AbstractCegarLoop]: Abstraction has 7231 states and 7806 transitions. [2020-10-29 07:37:54,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:37:54,504 INFO L276 IsEmpty]: Start isEmpty. Operand 7231 states and 7806 transitions. [2020-10-29 07:37:54,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1580 [2020-10-29 07:37:54,539 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:37:54,540 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:37:54,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 07:37:54,541 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:37:54,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:37:54,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1243511540, now seen corresponding path program 1 times [2020-10-29 07:37:54,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:37:54,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116017216] [2020-10-29 07:37:54,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:37:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:37:55,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:55,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:55,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:57,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:58,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:37:59,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1613 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1385 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-29 07:37:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:00,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:38:00,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:38:00,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:38:00,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:38:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:38:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:38:00,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 07:38:00,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:38:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:00,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:38:00,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:38:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:38:00,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 07:38:00,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:38:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:38:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:38:00,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-29 07:38:00,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:00,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-29 07:38:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 07:38:00,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:00,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1363 [2020-10-29 07:38:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:00,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:00,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:00,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 07:38:00,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 07:38:00,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:00,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 07:38:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7583 backedges. 1858 proven. 2 refuted. 0 times theorem prover too weak. 5723 trivial. 0 not checked. [2020-10-29 07:38:02,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116017216] [2020-10-29 07:38:02,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:02,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:02,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145830158] [2020-10-29 07:38:02,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:02,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:02,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:02,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:02,302 INFO L87 Difference]: Start difference. First operand 7231 states and 7806 transitions. Second operand 7 states. [2020-10-29 07:38:05,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:05,232 INFO L93 Difference]: Finished difference Result 16118 states and 17456 transitions. [2020-10-29 07:38:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 07:38:05,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1579 [2020-10-29 07:38:05,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:05,247 INFO L225 Difference]: With dead ends: 16118 [2020-10-29 07:38:05,247 INFO L226 Difference]: Without dead ends: 7957 [2020-10-29 07:38:05,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:38:05,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7957 states. [2020-10-29 07:38:05,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7957 to 7223. [2020-10-29 07:38:05,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7223 states. [2020-10-29 07:38:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7223 states to 7223 states and 7725 transitions. [2020-10-29 07:38:05,398 INFO L78 Accepts]: Start accepts. Automaton has 7223 states and 7725 transitions. Word has length 1579 [2020-10-29 07:38:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:05,400 INFO L481 AbstractCegarLoop]: Abstraction has 7223 states and 7725 transitions. [2020-10-29 07:38:05,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:05,400 INFO L276 IsEmpty]: Start isEmpty. Operand 7223 states and 7725 transitions. [2020-10-29 07:38:05,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1627 [2020-10-29 07:38:05,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:05,447 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-10-29 07:38:05,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 07:38:05,447 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:05,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:05,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1015592222, now seen corresponding path program 1 times [2020-10-29 07:38:05,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:05,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000397575] [2020-10-29 07:38:05,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:05,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:06,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:08,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1660 [2020-10-29 07:38:10,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 07:38:10,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4560 [2020-10-29 07:38:10,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 07:38:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-29 07:38:10,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-29 07:38:10,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:10,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:10,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:10,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:10,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:10,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:10,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:10,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:10,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:10,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:10,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:10,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:10,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:10,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:10,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:10,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:10,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:10,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:10,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:10,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:10,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:10,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:10,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:10,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:10,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:10,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:10,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:38:10,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:10,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 07:38:10,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:10,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:10,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:10,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:38:10,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:10,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:10,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:38:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:10,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:10,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:10,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:38:10,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:10,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 07:38:10,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:10,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:11,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:38:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:11,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:11,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:11,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:11,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:11,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 07:38:11,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:11,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:11,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:11,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:11,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:38:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:11,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:11,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:11,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:38:11,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:11,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 07:38:11,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:11,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:11,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:11,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:11,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:11,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:11,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:38:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:11,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:11,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:11,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:11,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:38:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:11,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:11,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:11,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:11,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:38:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:11,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:11,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-29 07:38:11,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:11,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-29 07:38:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:11,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:11,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-29 07:38:11,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 7700 backedges. 1845 proven. 51 refuted. 0 times theorem prover too weak. 5804 trivial. 0 not checked. [2020-10-29 07:38:12,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000397575] [2020-10-29 07:38:12,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:12,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 07:38:12,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411595697] [2020-10-29 07:38:12,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 07:38:12,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:12,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 07:38:12,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 07:38:12,849 INFO L87 Difference]: Start difference. First operand 7223 states and 7725 transitions. Second operand 6 states. [2020-10-29 07:38:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:14,648 INFO L93 Difference]: Finished difference Result 15546 states and 16625 transitions. [2020-10-29 07:38:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 07:38:14,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1626 [2020-10-29 07:38:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:14,666 INFO L225 Difference]: With dead ends: 15546 [2020-10-29 07:38:14,667 INFO L226 Difference]: Without dead ends: 8143 [2020-10-29 07:38:14,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 07:38:14,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8143 states. [2020-10-29 07:38:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8143 to 7769. [2020-10-29 07:38:14,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7769 states. [2020-10-29 07:38:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7769 states to 7769 states and 8224 transitions. [2020-10-29 07:38:14,830 INFO L78 Accepts]: Start accepts. Automaton has 7769 states and 8224 transitions. Word has length 1626 [2020-10-29 07:38:14,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:14,832 INFO L481 AbstractCegarLoop]: Abstraction has 7769 states and 8224 transitions. [2020-10-29 07:38:14,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 07:38:14,832 INFO L276 IsEmpty]: Start isEmpty. Operand 7769 states and 8224 transitions. [2020-10-29 07:38:14,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1741 [2020-10-29 07:38:14,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:14,876 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 8, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 07:38:14,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 07:38:14,876 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:14,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:14,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1456570517, now seen corresponding path program 2 times [2020-10-29 07:38:14,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:14,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523443173] [2020-10-29 07:38:14,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:15,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:15,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:16,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:17,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1776 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1367 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:38:20,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:20,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 07:38:20,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:20,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:20,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:38:20,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:38:20,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:20,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:38:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:38:20,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 07:38:20,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:38:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:38:20,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:38:20,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:38:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:20,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 07:38:20,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:38:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:20,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:20,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:38:20,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:20,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:38:20,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:20,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:20,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:20,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:20,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:20,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:38:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:20,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:21,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:21,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:38:21,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:21,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 07:38:21,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:21,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:21,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:21,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:21,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:21,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:21,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:38:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:21,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:21,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:21,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:38:21,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:21,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 07:38:21,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:21,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:21,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:21,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:21,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-29 07:38:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:21,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:21,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:21,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 07:38:21,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:21,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1345 [2020-10-29 07:38:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:21,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:21,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:21,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:21,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1524 [2020-10-29 07:38:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:21,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:21,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:21,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 07:38:21,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:21,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 07:38:21,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:21,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:21,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 07:38:21,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:21,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:23,256 INFO L134 CoverageAnalysis]: Checked inductivity of 9047 backedges. 1931 proven. 174 refuted. 0 times theorem prover too weak. 6942 trivial. 0 not checked. [2020-10-29 07:38:23,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523443173] [2020-10-29 07:38:23,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:23,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:23,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669737829] [2020-10-29 07:38:23,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:23,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:23,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:23,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:23,258 INFO L87 Difference]: Start difference. First operand 7769 states and 8224 transitions. Second operand 7 states. [2020-10-29 07:38:25,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:25,386 INFO L93 Difference]: Finished difference Result 15562 states and 16492 transitions. [2020-10-29 07:38:25,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 07:38:25,389 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1740 [2020-10-29 07:38:25,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:25,404 INFO L225 Difference]: With dead ends: 15562 [2020-10-29 07:38:25,404 INFO L226 Difference]: Without dead ends: 7799 [2020-10-29 07:38:25,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 07:38:25,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7799 states. [2020-10-29 07:38:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7799 to 7405. [2020-10-29 07:38:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7405 states. [2020-10-29 07:38:25,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7405 states to 7405 states and 7806 transitions. [2020-10-29 07:38:25,565 INFO L78 Accepts]: Start accepts. Automaton has 7405 states and 7806 transitions. Word has length 1740 [2020-10-29 07:38:25,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:25,567 INFO L481 AbstractCegarLoop]: Abstraction has 7405 states and 7806 transitions. [2020-10-29 07:38:25,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:25,567 INFO L276 IsEmpty]: Start isEmpty. Operand 7405 states and 7806 transitions. [2020-10-29 07:38:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1804 [2020-10-29 07:38:25,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 07:38:25,610 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 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 07:38:25,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 07:38:25,610 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 07:38:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 07:38:25,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1957376267, now seen corresponding path program 1 times [2020-10-29 07:38:25,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 07:38:25,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14381404] [2020-10-29 07:38:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 07:38:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:26,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:26,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:27,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:29,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1839 [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1430 [2020-10-29 07:38:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 07:38:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 07:38:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 07:38:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 07:38:31,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 07:38:31,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 07:38:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 07:38:31,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:31,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-29 07:38:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 07:38:31,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 07:38:31,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-29 07:38:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 07:38:31,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 07:38:31,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-29 07:38:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-29 07:38:31,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:38:31,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-29 07:38:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 07:38:31,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 07:38:31,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-29 07:38:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:31,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 07:38:31,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-29 07:38:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 07:38:31,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 07:38:31,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:31,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-29 07:38:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:31,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:31,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:31,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 07:38:31,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:31,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 07:38:31,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:31,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:31,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:31,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:31,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:31,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:32,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-29 07:38:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:32,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:32,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:32,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 07:38:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:32,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-29 07:38:32,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:32,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1408 [2020-10-29 07:38:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:32,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:32,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-29 07:38:32,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:32,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1587 [2020-10-29 07:38:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 07:38:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 07:38:32,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 07:38:32,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 07:38:32,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 07:38:32,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 07:38:32,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 07:38:32,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 07:38:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 07:38:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-29 07:38:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 07:38:32,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 07:38:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9299 backedges. 1991 proven. 174 refuted. 0 times theorem prover too weak. 7134 trivial. 0 not checked. [2020-10-29 07:38:34,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14381404] [2020-10-29 07:38:34,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 07:38:34,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 07:38:34,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154484720] [2020-10-29 07:38:34,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 07:38:34,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 07:38:34,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 07:38:34,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 07:38:34,034 INFO L87 Difference]: Start difference. First operand 7405 states and 7806 transitions. Second operand 7 states. [2020-10-29 07:38:36,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 07:38:36,120 INFO L93 Difference]: Finished difference Result 13697 states and 14365 transitions. [2020-10-29 07:38:36,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 07:38:36,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1803 [2020-10-29 07:38:36,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 07:38:36,123 INFO L225 Difference]: With dead ends: 13697 [2020-10-29 07:38:36,124 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 07:38:36,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 07:38:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 07:38:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 07:38:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 07:38:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 07:38:36,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1803 [2020-10-29 07:38:36,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 07:38:36,137 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 07:38:36,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 07:38:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 07:38:36,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 07:38:36,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 07:38:36,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 07:38:38,033 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 404 DAG size of output: 336 [2020-10-29 07:38:38,207 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2020-10-29 07:38:40,001 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 404 DAG size of output: 336