/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:00:16,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:00:16,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:00:16,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:00:16,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:00:16,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:00:16,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:00:16,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:00:16,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:00:16,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:00:16,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:00:16,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:00:16,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:00:16,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:00:16,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:00:16,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:00:16,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:00:16,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:00:16,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:00:16,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:00:16,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:00:16,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:00:16,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:00:16,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:00:16,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:00:16,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:00:16,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:00:16,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:00:16,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:00:16,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:00:16,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:00:16,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:00:16,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:00:16,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:00:16,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:00:16,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:00:16,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:00:16,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:00:16,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:00:16,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:00:16,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:00:16,143 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 [2020-10-14 08:00:16,165 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:00:16,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:00:16,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:00:16,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:00:16,167 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:00:16,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:00:16,167 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:00:16,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:00:16,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:00:16,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:00:16,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:00:16,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:00:16,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:00:16,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:00:16,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:00:16,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:00:16,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:00:16,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:00:16,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:00:16,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:00:16,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:00:16,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:00:16,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:00:16,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:00:16,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:00:16,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:00:16,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:00:16,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:00:16,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:00:16,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:00:16,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:00:16,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:00:16,510 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:00:16,513 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:00:16,513 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:00:16,514 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:00:16,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fcb100b8/41db5e2969854fc790eb23f2f1365563/FLAG3dee8870d [2020-10-14 08:00:17,119 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:00:17,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:00:17,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fcb100b8/41db5e2969854fc790eb23f2f1365563/FLAG3dee8870d [2020-10-14 08:00:17,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2fcb100b8/41db5e2969854fc790eb23f2f1365563 [2020-10-14 08:00:17,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:00:17,451 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:00:17,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:17,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:00:17,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:00:17,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a8f76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17, skipping insertion in model container [2020-10-14 08:00:17,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:00:17,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:00:17,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:17,844 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:00:17,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:00:17,916 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:00:17,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17 WrapperNode [2020-10-14 08:00:17,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:00:17,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:00:17,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:00:17,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:00:17,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (1/1) ... [2020-10-14 08:00:17,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:00:17,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:00:17,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:00:17,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:00:17,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (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 [2020-10-14 08:00:18,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:00:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:00:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:00:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:00:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:00:18,039 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:00:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:00:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:00:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:00:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:00:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:00:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:00:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:00:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:00:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:00:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:00:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:00:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:00:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:00:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:00:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:00:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:00:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:00:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:00:18,700 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:00:18,700 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:00:18,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:18 BoogieIcfgContainer [2020-10-14 08:00:18,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:00:18,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:00:18,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:00:18,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:00:18,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:00:17" (1/3) ... [2020-10-14 08:00:18,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292b8d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:18, skipping insertion in model container [2020-10-14 08:00:18,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:00:17" (2/3) ... [2020-10-14 08:00:18,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292b8d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:00:18, skipping insertion in model container [2020-10-14 08:00:18,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:00:18" (3/3) ... [2020-10-14 08:00:18,723 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:00:18,734 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:00:18,743 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:00:18,754 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:00:18,776 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:00:18,777 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:00:18,777 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:00:18,777 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:00:18,777 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:00:18,777 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:00:18,778 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:00:18,778 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:00:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2020-10-14 08:00:18,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-14 08:00:18,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:18,808 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] [2020-10-14 08:00:18,809 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:18,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1262742084, now seen corresponding path program 1 times [2020-10-14 08:00:18,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:18,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [230358679] [2020-10-14 08:00:18,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:19,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:19,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-14 08:00:19,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:19,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-14 08:00:19,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:19,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:00:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:19,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:19,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:00:19,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:19,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:19,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:19,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:19,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:19,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:19,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:19,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:19,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:19,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:19,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:19,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:19,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:00:19,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:19,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:19,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:19,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:19,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 08:00:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:19,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:19,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:19,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:19,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:19,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:19,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:19,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:19,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:19,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 08:00:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:19,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:19,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:19,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:19,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:19,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:19,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:19,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:19,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:20,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 08:00:20,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:20,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:20,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:00:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 08:00:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:20,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:20,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:20,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:20,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:20,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:20,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:20,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:20,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:20,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:20,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [230358679] [2020-10-14 08:00:20,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:20,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:00:20,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308675364] [2020-10-14 08:00:20,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:00:20,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:20,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:00:20,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:00:20,093 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 10 states. [2020-10-14 08:00:20,436 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-14 08:00:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:21,333 INFO L93 Difference]: Finished difference Result 199 states and 291 transitions. [2020-10-14 08:00:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 08:00:21,335 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 49 [2020-10-14 08:00:21,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:21,348 INFO L225 Difference]: With dead ends: 199 [2020-10-14 08:00:21,348 INFO L226 Difference]: Without dead ends: 113 [2020-10-14 08:00:21,353 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:00:21,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-14 08:00:21,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2020-10-14 08:00:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-14 08:00:21,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 131 transitions. [2020-10-14 08:00:21,415 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 131 transitions. Word has length 49 [2020-10-14 08:00:21,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:21,415 INFO L479 AbstractCegarLoop]: Abstraction has 101 states and 131 transitions. [2020-10-14 08:00:21,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:00:21,416 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 131 transitions. [2020-10-14 08:00:21,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:00:21,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:21,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:21,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:00:21,419 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:21,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:21,420 INFO L82 PathProgramCache]: Analyzing trace with hash 172488698, now seen corresponding path program 1 times [2020-10-14 08:00:21,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:21,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344604588] [2020-10-14 08:00:21,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:21,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:21,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 08:00:26,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:00:26,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 08:00:26,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 08:00:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 08:00:26,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:00:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:26,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:26,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:26,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:26,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:26,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:00:26,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:26,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:26,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:00:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:26,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:26,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:26,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:26,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:26,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:26,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:26,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:26,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:00:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:26,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:00:26,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:26,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:26,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:00:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:26,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:26,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:26,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:26,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:26,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:26,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:26,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:26,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:26,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:26,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344604588] [2020-10-14 08:00:26,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:26,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:26,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127782626] [2020-10-14 08:00:26,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:26,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:26,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:26,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:26,846 INFO L87 Difference]: Start difference. First operand 101 states and 131 transitions. Second operand 9 states. [2020-10-14 08:00:27,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:27,925 INFO L93 Difference]: Finished difference Result 234 states and 318 transitions. [2020-10-14 08:00:27,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:27,925 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2020-10-14 08:00:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:27,930 INFO L225 Difference]: With dead ends: 234 [2020-10-14 08:00:27,930 INFO L226 Difference]: Without dead ends: 164 [2020-10-14 08:00:27,932 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-14 08:00:27,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2020-10-14 08:00:27,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-14 08:00:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 210 transitions. [2020-10-14 08:00:27,954 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 210 transitions. Word has length 65 [2020-10-14 08:00:27,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:27,955 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 210 transitions. [2020-10-14 08:00:27,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 210 transitions. [2020-10-14 08:00:27,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-14 08:00:27,958 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:27,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:27,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:00:27,959 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:27,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:27,959 INFO L82 PathProgramCache]: Analyzing trace with hash -924676016, now seen corresponding path program 1 times [2020-10-14 08:00:27,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:27,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115980952] [2020-10-14 08:00:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:27,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:28,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:29,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 08:00:29,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:00:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1419 [2020-10-14 08:00:29,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:29,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 08:00:29,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 08:00:29,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:29,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:29,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:29,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:29,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:29,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:29,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:29,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:29,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:29,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:29,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:29,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:29,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:29,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:29,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:29,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:29,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:29,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:29,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:29,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:29,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:29,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:29,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:29,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:29,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:29,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:29,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:29,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:29,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:00:29,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:29,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:29,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:29,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:29,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:29,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:00:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:29,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:29,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:29,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:29,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:29,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:29,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:00:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:29,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:29,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:29,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:29,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:29,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:29,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:29,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:29,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:29,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:29,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:29,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:29,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:29,693 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115980952] [2020-10-14 08:00:29,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:29,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:29,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935258153] [2020-10-14 08:00:29,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:29,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:29,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:29,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:29,696 INFO L87 Difference]: Start difference. First operand 157 states and 210 transitions. Second operand 9 states. [2020-10-14 08:00:30,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:30,743 INFO L93 Difference]: Finished difference Result 393 states and 540 transitions. [2020-10-14 08:00:30,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:30,743 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-10-14 08:00:30,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:30,747 INFO L225 Difference]: With dead ends: 393 [2020-10-14 08:00:30,747 INFO L226 Difference]: Without dead ends: 267 [2020-10-14 08:00:30,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:30,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-10-14 08:00:30,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 257. [2020-10-14 08:00:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-14 08:00:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 348 transitions. [2020-10-14 08:00:30,777 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 348 transitions. Word has length 66 [2020-10-14 08:00:30,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:30,778 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 348 transitions. [2020-10-14 08:00:30,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 348 transitions. [2020-10-14 08:00:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-14 08:00:30,780 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:30,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:30,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:00:30,780 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:30,781 INFO L82 PathProgramCache]: Analyzing trace with hash -655987234, now seen corresponding path program 1 times [2020-10-14 08:00:30,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:30,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823418622] [2020-10-14 08:00:30,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:30,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:30,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:00:31,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:31,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-10-14 08:00:31,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:31,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 08:00:31,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-14 08:00:31,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:31,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:31,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:31,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:31,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:00:31,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:31,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 08:00:31,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:31,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:31,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:31,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:31,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:31,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:31,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:00:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:31,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:31,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:31,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:31,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-14 08:00:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:31,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:31,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:31,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-14 08:00:31,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:31,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:00:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:31,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:31,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:31,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:31,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:31,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:31,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:31,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:31,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:31,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823418622] [2020-10-14 08:00:31,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:31,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:31,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818625037] [2020-10-14 08:00:31,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:31,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:31,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:31,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:31,711 INFO L87 Difference]: Start difference. First operand 257 states and 348 transitions. Second operand 9 states. [2020-10-14 08:00:32,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:32,772 INFO L93 Difference]: Finished difference Result 673 states and 922 transitions. [2020-10-14 08:00:32,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:32,773 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-10-14 08:00:32,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:32,776 INFO L225 Difference]: With dead ends: 673 [2020-10-14 08:00:32,776 INFO L226 Difference]: Without dead ends: 447 [2020-10-14 08:00:32,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:00:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-14 08:00:32,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 433. [2020-10-14 08:00:32,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-10-14 08:00:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 584 transitions. [2020-10-14 08:00:32,817 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 584 transitions. Word has length 67 [2020-10-14 08:00:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:32,817 INFO L479 AbstractCegarLoop]: Abstraction has 433 states and 584 transitions. [2020-10-14 08:00:32,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 584 transitions. [2020-10-14 08:00:32,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-14 08:00:32,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:32,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:32,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:00:32,819 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:32,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:32,820 INFO L82 PathProgramCache]: Analyzing trace with hash 658794994, now seen corresponding path program 1 times [2020-10-14 08:00:32,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:32,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183292553] [2020-10-14 08:00:32,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:32,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:32,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:33,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:33,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-14 08:00:33,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 996 [2020-10-14 08:00:33,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:33,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:33,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:33,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:00:33,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-10-14 08:00:33,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:33,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:33,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:33,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:33,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:33,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:33,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:33,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:33,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:33,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:33,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:33,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:33,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:33,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:33,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:33,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:33,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:33,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:33,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:33,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:33,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:33,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:33,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:00:33,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:33,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:33,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:34,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:34,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:00:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:34,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:00:34,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:00:34,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:34,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:34,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:00:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:34,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:34,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:34,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:34,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:34,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:00:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:34,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:34,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:34,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:34,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:34,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:34,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:00:34,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:34,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:34,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:34,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183292553] [2020-10-14 08:00:34,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:34,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:34,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5591983] [2020-10-14 08:00:34,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:34,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:34,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:34,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:34,197 INFO L87 Difference]: Start difference. First operand 433 states and 584 transitions. Second operand 12 states. [2020-10-14 08:00:34,385 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 08:00:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:39,623 INFO L93 Difference]: Finished difference Result 3049 states and 4325 transitions. [2020-10-14 08:00:39,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-14 08:00:39,627 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-10-14 08:00:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:39,658 INFO L225 Difference]: With dead ends: 3049 [2020-10-14 08:00:39,659 INFO L226 Difference]: Without dead ends: 2647 [2020-10-14 08:00:39,668 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=594, Invalid=2828, Unknown=0, NotChecked=0, Total=3422 [2020-10-14 08:00:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2647 states. [2020-10-14 08:00:39,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2647 to 2597. [2020-10-14 08:00:39,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2597 states. [2020-10-14 08:00:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 3408 transitions. [2020-10-14 08:00:39,911 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 3408 transitions. Word has length 68 [2020-10-14 08:00:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:39,912 INFO L479 AbstractCegarLoop]: Abstraction has 2597 states and 3408 transitions. [2020-10-14 08:00:39,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:39,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 3408 transitions. [2020-10-14 08:00:39,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 08:00:39,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:39,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:39,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:00:39,916 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:39,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:39,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1291546525, now seen corresponding path program 1 times [2020-10-14 08:00:39,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:39,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727903844] [2020-10-14 08:00:39,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:39,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 08:00:40,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-14 08:00:40,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:00:40,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 08:00:40,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 08:00:40,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:40,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:40,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:40,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:40,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:40,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 08:00:40,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:40,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 08:00:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:40,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:40,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:40,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:00:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:40,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:00:40,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:40,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:40,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:40,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:00:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:40,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:00:40,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:00:40,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:00:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:40,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:40,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:40,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:00:40,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:40,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:40,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:40,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:00:40,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:00:40,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:40,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727903844] [2020-10-14 08:00:40,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:40,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-14 08:00:40,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984771741] [2020-10-14 08:00:40,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:00:40,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:40,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:00:40,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:00:40,616 INFO L87 Difference]: Start difference. First operand 2597 states and 3408 transitions. Second operand 13 states. [2020-10-14 08:00:46,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:46,194 INFO L93 Difference]: Finished difference Result 20205 states and 28821 transitions. [2020-10-14 08:00:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-14 08:00:46,195 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2020-10-14 08:00:46,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:46,323 INFO L225 Difference]: With dead ends: 20205 [2020-10-14 08:00:46,323 INFO L226 Difference]: Without dead ends: 17691 [2020-10-14 08:00:46,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 919 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=707, Invalid=2373, Unknown=0, NotChecked=0, Total=3080 [2020-10-14 08:00:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17691 states. [2020-10-14 08:00:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17691 to 14889. [2020-10-14 08:00:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14889 states. [2020-10-14 08:00:47,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14889 states to 14889 states and 19432 transitions. [2020-10-14 08:00:47,583 INFO L78 Accepts]: Start accepts. Automaton has 14889 states and 19432 transitions. Word has length 69 [2020-10-14 08:00:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:47,584 INFO L479 AbstractCegarLoop]: Abstraction has 14889 states and 19432 transitions. [2020-10-14 08:00:47,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:00:47,585 INFO L276 IsEmpty]: Start isEmpty. Operand 14889 states and 19432 transitions. [2020-10-14 08:00:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-14 08:00:47,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:47,588 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:47,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:00:47,589 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:47,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:47,589 INFO L82 PathProgramCache]: Analyzing trace with hash 230168201, now seen corresponding path program 1 times [2020-10-14 08:00:47,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:47,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298214392] [2020-10-14 08:00:47,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:47,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:47,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:47,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 08:00:47,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:47,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 08:00:47,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:47,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 08:00:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:47,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:47,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:47,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:47,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:47,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:47,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:47,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:47,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:48,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:48,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:48,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:48,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:48,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:48,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:48,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:48,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:48,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:48,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:48,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:48,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:48,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:48,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:48,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:48,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:48,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:48,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:48,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:48,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:48,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:48,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:48,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:48,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:00:48,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:48,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:48,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:48,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:48,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:00:48,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:48,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:48,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:48,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:00:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:48,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:48,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:48,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:48,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:48,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:48,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:48,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:48,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:48,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:00:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:48,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:48,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:48,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:48,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:48,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:48,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:00:48,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:48,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298214392] [2020-10-14 08:00:48,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:48,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:00:48,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133786573] [2020-10-14 08:00:48,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:00:48,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:48,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:00:48,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:00:48,139 INFO L87 Difference]: Start difference. First operand 14889 states and 19432 transitions. Second operand 12 states. [2020-10-14 08:00:50,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:50,364 INFO L93 Difference]: Finished difference Result 18681 states and 25199 transitions. [2020-10-14 08:00:50,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:00:50,365 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-10-14 08:00:50,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:50,467 INFO L225 Difference]: With dead ends: 18681 [2020-10-14 08:00:50,468 INFO L226 Difference]: Without dead ends: 18679 [2020-10-14 08:00:50,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:00:50,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18679 states. [2020-10-14 08:00:52,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18679 to 16617. [2020-10-14 08:00:52,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16617 states. [2020-10-14 08:00:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16617 states to 16617 states and 21160 transitions. [2020-10-14 08:00:52,090 INFO L78 Accepts]: Start accepts. Automaton has 16617 states and 21160 transitions. Word has length 70 [2020-10-14 08:00:52,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:52,090 INFO L479 AbstractCegarLoop]: Abstraction has 16617 states and 21160 transitions. [2020-10-14 08:00:52,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:00:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 16617 states and 21160 transitions. [2020-10-14 08:00:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-14 08:00:52,092 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:52,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:52,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:00:52,093 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:52,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1738669819, now seen corresponding path program 1 times [2020-10-14 08:00:52,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:52,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319114158] [2020-10-14 08:00:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-14 08:00:52,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 08:00:52,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:52,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 08:00:52,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:52,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:52,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:52,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:52,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:52,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:52,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:52,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:00:52,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:52,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:52,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:52,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:52,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:00:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:52,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:52,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:52,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:00:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:52,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:00:52,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:52,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:00:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:52,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:52,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:52,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:52,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:52,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:00:52,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:52,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:52,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:52,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:52,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:00:52,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319114158] [2020-10-14 08:00:52,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:00:52,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:00:52,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205298042] [2020-10-14 08:00:52,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:00:52,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:52,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:00:52,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:00:52,477 INFO L87 Difference]: Start difference. First operand 16617 states and 21160 transitions. Second operand 9 states. [2020-10-14 08:00:54,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:00:54,863 INFO L93 Difference]: Finished difference Result 46525 states and 59937 transitions. [2020-10-14 08:00:54,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-14 08:00:54,864 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-10-14 08:00:54,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:00:54,970 INFO L225 Difference]: With dead ends: 46525 [2020-10-14 08:00:54,971 INFO L226 Difference]: Without dead ends: 29991 [2020-10-14 08:00:55,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2020-10-14 08:00:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29991 states. [2020-10-14 08:00:56,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29991 to 29565. [2020-10-14 08:00:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29565 states. [2020-10-14 08:00:56,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29565 states to 29565 states and 38088 transitions. [2020-10-14 08:00:56,949 INFO L78 Accepts]: Start accepts. Automaton has 29565 states and 38088 transitions. Word has length 71 [2020-10-14 08:00:56,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:00:56,950 INFO L479 AbstractCegarLoop]: Abstraction has 29565 states and 38088 transitions. [2020-10-14 08:00:56,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:00:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 29565 states and 38088 transitions. [2020-10-14 08:00:56,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:00:56,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:00:56,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:00:56,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:00:56,972 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:00:56,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:00:56,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1494643089, now seen corresponding path program 1 times [2020-10-14 08:00:56,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:00:56,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836933656] [2020-10-14 08:00:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:00:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:57,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:57,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 08:00:58,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:00:58,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1241 [2020-10-14 08:00:58,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:00:58,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:00:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-14 08:00:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:58,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:00:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:00:58,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:58,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:00:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:00:58,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:58,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:00:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:00:58,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:58,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:00:58,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:58,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:00:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:58,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:00:58,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:00:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:58,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:00:58,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:58,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:00:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:58,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:58,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:00:58,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:00:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:00:58,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:00:58,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:00:58,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:58,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:00:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:58,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:58,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:58,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:58,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 08:00:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:00:58,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:00:58,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:58,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:58,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:00:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:58,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:00:58,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:00:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:00:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:00:58,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:58,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:00:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:58,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:00:58,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:58,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:58,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:00:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:00:58,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:58,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:00:58,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:00:58,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:00:58,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:00:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:00:58,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:00:58,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:00:58,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:00:58,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:00:58,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:00:58,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:00:58,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:00:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:00:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:00:58,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:00:58,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:00:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 08:00:58,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836933656] [2020-10-14 08:00:58,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:00:58,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 08:00:58,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185821229] [2020-10-14 08:00:58,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 08:00:58,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:00:58,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 08:00:58,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:00:58,673 INFO L87 Difference]: Start difference. First operand 29565 states and 38088 transitions. Second operand 11 states. [2020-10-14 08:01:03,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:03,190 INFO L93 Difference]: Finished difference Result 68111 states and 87822 transitions. [2020-10-14 08:01:03,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 08:01:03,191 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2020-10-14 08:01:03,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:03,328 INFO L225 Difference]: With dead ends: 68111 [2020-10-14 08:01:03,328 INFO L226 Difference]: Without dead ends: 43441 [2020-10-14 08:01:03,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=202, Invalid=554, Unknown=0, NotChecked=0, Total=756 [2020-10-14 08:01:03,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43441 states. [2020-10-14 08:01:05,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43441 to 42829. [2020-10-14 08:01:05,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42829 states. [2020-10-14 08:01:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42829 states to 42829 states and 55020 transitions. [2020-10-14 08:01:05,538 INFO L78 Accepts]: Start accepts. Automaton has 42829 states and 55020 transitions. Word has length 108 [2020-10-14 08:01:05,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:05,538 INFO L479 AbstractCegarLoop]: Abstraction has 42829 states and 55020 transitions. [2020-10-14 08:01:05,538 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 08:01:05,538 INFO L276 IsEmpty]: Start isEmpty. Operand 42829 states and 55020 transitions. [2020-10-14 08:01:05,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:01:05,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:05,544 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:05,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:01:05,545 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:05,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:05,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1082013579, now seen corresponding path program 1 times [2020-10-14 08:01:05,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:05,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1669092137] [2020-10-14 08:01:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:05,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:05,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:06,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:08,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 08:01:10,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:10,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:01:10,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:01:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:01:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 08:01:10,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:10,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:01:10,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:10,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 08:01:10,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:10,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:01:10,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:01:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:01:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:10,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:10,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:10,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:10,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:10,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:01:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:10,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:01:10,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:01:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:01:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-14 08:01:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:10,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:10,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:10,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:10,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:01:10,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:01:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:10,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:10,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:10,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:10,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:10,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 08:01:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:10,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:10,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:10,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:10,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:01:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:10,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:10,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:10,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:10,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:10,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:10,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:10,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:10,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:10,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:10,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:01:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:11,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:11,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:11,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:11,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:11,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:11,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:11,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:11,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:11,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:11,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:11,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:11,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:01:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:11,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:11,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:11,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:01:11,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:11,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:01:11,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:11,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:11,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 08:01:11,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:11,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:01:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:11,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:11,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:11,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:11,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:11,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:11,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:11,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:11,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:11,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:01:11,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1669092137] [2020-10-14 08:01:11,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:11,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:01:11,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319252526] [2020-10-14 08:01:11,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:01:11,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:11,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:01:11,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:01:11,098 INFO L87 Difference]: Start difference. First operand 42829 states and 55020 transitions. Second operand 15 states. [2020-10-14 08:01:11,267 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 90 [2020-10-14 08:01:11,738 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-14 08:01:12,303 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 96 [2020-10-14 08:01:13,074 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-14 08:01:13,252 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-10-14 08:01:13,725 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-10-14 08:01:17,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:17,717 INFO L93 Difference]: Finished difference Result 106819 states and 137203 transitions. [2020-10-14 08:01:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-14 08:01:17,718 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-14 08:01:17,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:17,902 INFO L225 Difference]: With dead ends: 106819 [2020-10-14 08:01:17,902 INFO L226 Difference]: Without dead ends: 64073 [2020-10-14 08:01:17,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2020-10-14 08:01:18,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64073 states. [2020-10-14 08:01:20,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64073 to 62268. [2020-10-14 08:01:20,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62268 states. [2020-10-14 08:01:21,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62268 states to 62268 states and 79348 transitions. [2020-10-14 08:01:21,090 INFO L78 Accepts]: Start accepts. Automaton has 62268 states and 79348 transitions. Word has length 109 [2020-10-14 08:01:21,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:21,091 INFO L479 AbstractCegarLoop]: Abstraction has 62268 states and 79348 transitions. [2020-10-14 08:01:21,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:01:21,091 INFO L276 IsEmpty]: Start isEmpty. Operand 62268 states and 79348 transitions. [2020-10-14 08:01:21,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:01:21,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:21,103 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:21,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:01:21,103 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:21,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:21,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1651881325, now seen corresponding path program 1 times [2020-10-14 08:01:21,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:21,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714659157] [2020-10-14 08:01:21,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:22,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:22,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:22,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:22,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:25,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 08:01:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:01:27,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:01:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:01:27,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 08:01:27,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:27,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:27,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:01:27,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:27,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:27,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:27,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:01:27,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:01:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:27,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:27,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:01:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:27,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:01:27,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:01:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:27,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 08:01:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:27,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:01:27,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:27,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:01:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:27,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:27,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:27,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 08:01:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:27,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:27,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:01:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:27,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:27,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:01:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:01:27,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:01:27,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:27,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:01:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:27,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:27,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:27,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:27,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:27,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:01:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:27,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:27,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:27,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:27,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:27,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:01:27,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:27,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:27,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:01:27,885 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714659157] [2020-10-14 08:01:27,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:27,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:01:27,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859492055] [2020-10-14 08:01:27,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:01:27,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:27,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:01:27,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:01:27,887 INFO L87 Difference]: Start difference. First operand 62268 states and 79348 transitions. Second operand 15 states. [2020-10-14 08:01:28,080 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-14 08:01:28,705 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2020-10-14 08:01:30,192 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2020-10-14 08:01:32,312 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-14 08:01:38,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:01:38,254 INFO L93 Difference]: Finished difference Result 220301 states and 280697 transitions. [2020-10-14 08:01:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-14 08:01:38,254 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-14 08:01:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:01:38,892 INFO L225 Difference]: With dead ends: 220301 [2020-10-14 08:01:38,892 INFO L226 Difference]: Without dead ends: 163502 [2020-10-14 08:01:39,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=464, Invalid=1986, Unknown=0, NotChecked=0, Total=2450 [2020-10-14 08:01:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163502 states. [2020-10-14 08:01:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163502 to 153573. [2020-10-14 08:01:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153573 states. [2020-10-14 08:01:49,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153573 states to 153573 states and 196177 transitions. [2020-10-14 08:01:49,782 INFO L78 Accepts]: Start accepts. Automaton has 153573 states and 196177 transitions. Word has length 109 [2020-10-14 08:01:49,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:01:49,782 INFO L479 AbstractCegarLoop]: Abstraction has 153573 states and 196177 transitions. [2020-10-14 08:01:49,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-14 08:01:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 153573 states and 196177 transitions. [2020-10-14 08:01:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:01:49,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:01:49,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:01:49,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:01:49,811 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:01:49,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:01:49,811 INFO L82 PathProgramCache]: Analyzing trace with hash -34298513, now seen corresponding path program 1 times [2020-10-14 08:01:49,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:01:49,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099688869] [2020-10-14 08:01:49,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:01:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:49,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:49,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:50,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:54,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:54,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 08:01:54,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:54,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:01:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:54,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:54,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:54,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:01:54,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:54,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:54,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:54,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:54,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:54,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:01:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:54,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:54,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:54,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:01:54,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:54,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:01:54,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:54,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:01:54,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:54,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:01:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:55,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:55,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:55,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:55,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:55,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-14 08:01:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:01:55,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:01:55,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:01:55,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:01:55,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:01:55,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 08:01:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:01:55,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:01:55,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:55,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:01:55,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:01:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:55,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:01:55,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:55,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:55,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 08:01:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:01:55,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:55,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:01:55,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:01:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:55,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:01:55,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:01:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:01:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:55,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:01:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:01:55,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:01:55,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:01:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:01:55,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:01:55,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:01:55,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:01:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:01:55,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:01:55,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:55,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:01:55,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:55,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:01:55,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:01:55,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:01:55,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:01:55,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:01:55,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:01:55,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:01:55,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:01:55,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:01:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:01:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:01:55,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:01:55,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:01:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 08:01:55,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099688869] [2020-10-14 08:01:55,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:01:55,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 08:01:55,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954053322] [2020-10-14 08:01:55,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 08:01:55,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:01:55,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 08:01:55,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-14 08:01:55,265 INFO L87 Difference]: Start difference. First operand 153573 states and 196177 transitions. Second operand 13 states. [2020-10-14 08:01:56,150 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-14 08:01:56,479 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-14 08:02:10,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:02:10,988 INFO L93 Difference]: Finished difference Result 394140 states and 498559 transitions. [2020-10-14 08:02:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2020-10-14 08:02:10,989 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2020-10-14 08:02:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:02:11,728 INFO L225 Difference]: With dead ends: 394140 [2020-10-14 08:02:11,728 INFO L226 Difference]: Without dead ends: 240268 [2020-10-14 08:02:11,924 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1660 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=761, Invalid=4069, Unknown=0, NotChecked=0, Total=4830 [2020-10-14 08:02:12,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240268 states. [2020-10-14 08:02:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240268 to 226455. [2020-10-14 08:02:30,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226455 states. [2020-10-14 08:02:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226455 states to 226455 states and 282417 transitions. [2020-10-14 08:02:31,563 INFO L78 Accepts]: Start accepts. Automaton has 226455 states and 282417 transitions. Word has length 109 [2020-10-14 08:02:31,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:02:31,564 INFO L479 AbstractCegarLoop]: Abstraction has 226455 states and 282417 transitions. [2020-10-14 08:02:31,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 08:02:31,564 INFO L276 IsEmpty]: Start isEmpty. Operand 226455 states and 282417 transitions. [2020-10-14 08:02:31,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:02:31,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:02:31,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:02:31,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:02:31,577 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:02:31,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:02:31,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1565902471, now seen corresponding path program 1 times [2020-10-14 08:02:31,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:02:31,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183783434] [2020-10-14 08:02:31,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:02:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:31,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:31,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:31,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:32,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:34,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 08:02:36,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:02:36,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:02:36,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 08:02:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:02:36,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 08:02:36,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:02:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:02:36,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:02:36,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:02:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 08:02:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:02:36,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:36,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:02:36,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:02:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:36,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:36,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:36,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:02:36,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 08:02:36,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:36,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 08:02:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:02:36,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:36,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 08:02:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:37,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:02:37,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:37,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-14 08:02:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 08:02:37,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:02:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:02:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:37,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:02:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:37,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:37,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:37,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:02:37,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:37,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 08:02:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:02:37,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:37,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:37,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:02:37,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:37,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:02:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:02:37,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:02:37,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:02:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:02:37,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:37,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:02:37,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:02:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:37,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:02:37,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 08:02:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:02:37,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:02:37,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:37,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:02:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:02:37,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:02:37,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:37,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:02:37,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:37,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:37,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:02:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:02:37,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:02:37,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:02:37,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:02:37,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:02:37,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:02:37,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:02:37,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:02:37,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:02:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:02:37,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:02:37,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:02:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 08:02:37,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183783434] [2020-10-14 08:02:37,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 08:02:37,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-14 08:02:37,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207657241] [2020-10-14 08:02:37,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-14 08:02:37,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:02:37,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-14 08:02:37,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-10-14 08:02:37,184 INFO L87 Difference]: Start difference. First operand 226455 states and 282417 transitions. Second operand 15 states. [2020-10-14 08:02:37,820 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2020-10-14 08:02:39,308 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-10-14 08:02:42,108 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-14 08:03:19,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:03:19,067 INFO L93 Difference]: Finished difference Result 865069 states and 1085974 transitions. [2020-10-14 08:03:19,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-14 08:03:19,067 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 109 [2020-10-14 08:03:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:03:21,264 INFO L225 Difference]: With dead ends: 865069 [2020-10-14 08:03:21,264 INFO L226 Difference]: Without dead ends: 638711 [2020-10-14 08:03:21,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=526, Invalid=2230, Unknown=0, NotChecked=0, Total=2756 [2020-10-14 08:03:22,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638711 states.