/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 18:48:37,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 18:48:37,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 18:48:37,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 18:48:37,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 18:48:37,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 18:48:37,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 18:48:37,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 18:48:37,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 18:48:37,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 18:48:37,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 18:48:37,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 18:48:37,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 18:48:37,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 18:48:37,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 18:48:37,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 18:48:37,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 18:48:37,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 18:48:37,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 18:48:37,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 18:48:37,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 18:48:37,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 18:48:37,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 18:48:37,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 18:48:37,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 18:48:37,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 18:48:37,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 18:48:37,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 18:48:37,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 18:48:37,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 18:48:37,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 18:48:37,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 18:48:37,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 18:48:37,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 18:48:37,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 18:48:37,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 18:48:37,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 18:48:37,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 18:48:37,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 18:48:37,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 18:48:37,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 18:48:37,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 18:48:38,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 18:48:38,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 18:48:38,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 18:48:38,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 18:48:38,015 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 18:48:38,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 18:48:38,016 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 18:48:38,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 18:48:38,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 18:48:38,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 18:48:38,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 18:48:38,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 18:48:38,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 18:48:38,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 18:48:38,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 18:48:38,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 18:48:38,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 18:48:38,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 18:48:38,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 18:48:38,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 18:48:38,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 18:48:38,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:48:38,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 18:48:38,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 18:48:38,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 18:48:38,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 18:48:38,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 18:48:38,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 18:48:38,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 18:48:38,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 18:48:38,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 18:48:38,315 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 18:48:38,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 18:48:38,320 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 18:48:38,320 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 18:48:38,321 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2020-10-12 18:48:38,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a1299d0/10d502b0476b44e785fccb766c789a2d/FLAGcc6ceb60a [2020-10-12 18:48:38,934 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 18:48:38,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2020-10-12 18:48:38,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a1299d0/10d502b0476b44e785fccb766c789a2d/FLAGcc6ceb60a [2020-10-12 18:48:39,188 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/74a1299d0/10d502b0476b44e785fccb766c789a2d [2020-10-12 18:48:39,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 18:48:39,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 18:48:39,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 18:48:39,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 18:48:39,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 18:48:39,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39, skipping insertion in model container [2020-10-12 18:48:39,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 18:48:39,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 18:48:39,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:48:39,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 18:48:39,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 18:48:39,768 INFO L208 MainTranslator]: Completed translation [2020-10-12 18:48:39,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39 WrapperNode [2020-10-12 18:48:39,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 18:48:39,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 18:48:39,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 18:48:39,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 18:48:39,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... [2020-10-12 18:48:39,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 18:48:39,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 18:48:39,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 18:48:39,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 18:48:39,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 18:48:39,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 18:48:39,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 18:48:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 18:48:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-12 18:48:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-12 18:48:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-12 18:48:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure node4 [2020-10-12 18:48:39,901 INFO L138 BoogieDeclarations]: Found implementation of procedure node5 [2020-10-12 18:48:39,902 INFO L138 BoogieDeclarations]: Found implementation of procedure node6 [2020-10-12 18:48:39,902 INFO L138 BoogieDeclarations]: Found implementation of procedure node7 [2020-10-12 18:48:39,902 INFO L138 BoogieDeclarations]: Found implementation of procedure node8 [2020-10-12 18:48:39,902 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-12 18:48:39,902 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-12 18:48:39,902 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 18:48:39,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-12 18:48:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 18:48:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-12 18:48:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-12 18:48:39,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-12 18:48:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-12 18:48:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 18:48:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 18:48:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-12 18:48:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-12 18:48:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-12 18:48:39,904 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-12 18:48:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-12 18:48:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2020-10-12 18:48:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2020-10-12 18:48:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure node6 [2020-10-12 18:48:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure node7 [2020-10-12 18:48:39,905 INFO L130 BoogieDeclarations]: Found specification of procedure node8 [2020-10-12 18:48:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-12 18:48:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-12 18:48:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 18:48:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 18:48:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 18:48:40,652 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 18:48:40,653 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 18:48:40,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:48:40 BoogieIcfgContainer [2020-10-12 18:48:40,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 18:48:40,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 18:48:40,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 18:48:40,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 18:48:40,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 06:48:39" (1/3) ... [2020-10-12 18:48:40,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d83ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:48:40, skipping insertion in model container [2020-10-12 18:48:40,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 06:48:39" (2/3) ... [2020-10-12 18:48:40,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251d83ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 06:48:40, skipping insertion in model container [2020-10-12 18:48:40,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 06:48:40" (3/3) ... [2020-10-12 18:48:40,667 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.8_overflow.ufo.UNBOUNDED.pals.c [2020-10-12 18:48:40,676 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 18:48:40,684 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 18:48:40,696 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 18:48:40,721 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 18:48:40,721 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 18:48:40,721 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 18:48:40,722 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 18:48:40,722 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 18:48:40,722 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 18:48:40,722 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 18:48:40,723 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 18:48:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-10-12 18:48:40,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:48:40,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:40,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:48:40,759 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:40,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:40,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1770956639, now seen corresponding path program 1 times [2020-10-12 18:48:40,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:40,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507488398] [2020-10-12 18:48:40,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:41,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:41,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:41,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 18:48:41,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:41,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-12 18:48:41,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:41,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-12 18:48:41,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:41,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:48:42,006 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:48:42,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:42,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:48:42,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:42,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:42,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:42,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:42,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:48:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:42,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:48:42,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:48:42,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:48:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:42,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:42,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:48:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:48:42,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:48:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:48:42,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:48:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:42,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:48:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:42,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:48:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:48:42,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:48:42,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 18:48:42,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:42,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:48:42,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:42,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:48:42,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:48:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:42,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:42,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:42,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:42,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:42,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:48:42,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:42,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:48:42,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:42,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:42,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:48:42,486 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507488398] [2020-10-12 18:48:42,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:42,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-12 18:48:42,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136755354] [2020-10-12 18:48:42,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 18:48:42,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:42,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 18:48:42,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-12 18:48:42,513 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 11 states. [2020-10-12 18:48:43,370 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:48:44,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:44,642 INFO L93 Difference]: Finished difference Result 303 states and 461 transitions. [2020-10-12 18:48:44,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 18:48:44,644 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-10-12 18:48:44,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:44,657 INFO L225 Difference]: With dead ends: 303 [2020-10-12 18:48:44,657 INFO L226 Difference]: Without dead ends: 187 [2020-10-12 18:48:44,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-10-12 18:48:44,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-12 18:48:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2020-10-12 18:48:44,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-12 18:48:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 293 transitions. [2020-10-12 18:48:44,723 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 293 transitions. Word has length 88 [2020-10-12 18:48:44,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:44,724 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 293 transitions. [2020-10-12 18:48:44,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 18:48:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 293 transitions. [2020-10-12 18:48:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 18:48:44,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:44,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:48:44,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 18:48:44,730 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:44,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:44,730 INFO L82 PathProgramCache]: Analyzing trace with hash -140085919, now seen corresponding path program 1 times [2020-10-12 18:48:44,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:44,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639833363] [2020-10-12 18:48:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:44,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:45,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:45,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 18:48:45,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:45,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 993 [2020-10-12 18:48:45,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:48:45,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:48:45,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 18:48:45,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:46,060 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:48:46,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:46,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:48:46,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:46,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:48:46,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:46,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:46,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-12 18:48:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:46,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:46,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:46,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-12 18:48:46,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:46,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-12 18:48:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:46,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-12 18:48:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:46,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-12 18:48:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:48:46,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-12 18:48:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:46,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-12 18:48:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:46,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 18:48:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:46,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-12 18:48:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:46,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-12 18:48:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:46,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:48:46,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:48:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 18:48:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:46,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:46,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:46,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:46,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:48:46,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:48:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:46,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:46,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:48:46,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639833363] [2020-10-12 18:48:46,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:46,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-12 18:48:46,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571030902] [2020-10-12 18:48:46,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-12 18:48:46,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:46,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-12 18:48:46,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-12 18:48:46,462 INFO L87 Difference]: Start difference. First operand 187 states and 293 transitions. Second operand 17 states. [2020-10-12 18:48:46,785 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:48:47,020 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:48:47,308 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:48:47,535 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:48:50,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:48:50,215 INFO L93 Difference]: Finished difference Result 301 states and 453 transitions. [2020-10-12 18:48:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-12 18:48:50,216 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 88 [2020-10-12 18:48:50,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:48:50,220 INFO L225 Difference]: With dead ends: 301 [2020-10-12 18:48:50,220 INFO L226 Difference]: Without dead ends: 187 [2020-10-12 18:48:50,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2020-10-12 18:48:50,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-12 18:48:50,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2020-10-12 18:48:50,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-12 18:48:50,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 232 transitions. [2020-10-12 18:48:50,251 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 232 transitions. Word has length 88 [2020-10-12 18:48:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:48:50,251 INFO L479 AbstractCegarLoop]: Abstraction has 187 states and 232 transitions. [2020-10-12 18:48:50,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-12 18:48:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 232 transitions. [2020-10-12 18:48:50,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-12 18:48:50,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:48:50,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:48:50,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 18:48:50,258 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:48:50,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:48:50,259 INFO L82 PathProgramCache]: Analyzing trace with hash 505994353, now seen corresponding path program 1 times [2020-10-12 18:48:50,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:48:50,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385252480] [2020-10-12 18:48:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:48:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:50,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:50,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:50,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:51,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:55,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:55,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 18:48:55,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:48:55,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:48:55,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 18:48:55,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:48:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-12 18:48:55,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 18:48:55,782 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:48:55,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:48:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:55,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:55,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:55,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:48:55,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:55,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 18:48:55,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:48:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:48:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:55,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:48:55,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:55,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:55,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:55,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:48:55,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:55,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-12 18:48:55,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:48:55,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:55,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 18:48:55,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:48:56,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:48:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:48:56,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:48:56,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:48:56,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:48:56,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:48:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:48:56,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:48:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:48:56,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:48:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:48:56,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:48:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:48:56,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:48:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:48:56,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:48:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 18:48:56,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:48:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 18:48:56,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:56,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:48:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:56,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:56,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:56,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:48:56,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:56,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:48:56,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:48:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:48:56,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:48:56,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:57,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 18:48:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:48:57,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:48:57,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:48:57,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:48:57,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:48:57,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:48:57,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:48:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:48:57,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 18:48:57,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:48:57,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:48:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:48:57,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385252480] [2020-10-12 18:48:57,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:48:57,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-12 18:48:57,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783632400] [2020-10-12 18:48:57,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 18:48:57,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:48:57,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 18:48:57,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:48:57,144 INFO L87 Difference]: Start difference. First operand 187 states and 232 transitions. Second operand 28 states. [2020-10-12 18:48:57,756 WARN L193 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-10-12 18:48:57,983 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:48:58,178 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:48:58,400 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:48:58,660 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:48:58,928 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:48:59,219 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:48:59,492 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:49:00,032 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2020-10-12 18:49:00,529 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:01,294 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:02,429 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:02,642 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:03,916 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-12 18:49:04,146 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:04,282 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:04,413 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:04,679 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:05,689 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:06,685 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:07,017 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:07,967 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:49:08,230 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:08,371 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:09,015 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:09,365 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:09,505 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:10,492 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 120 [2020-10-12 18:49:10,779 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:10,929 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:11,074 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:11,223 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:11,372 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:11,764 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:12,111 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:12,247 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:13,652 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-12 18:49:13,910 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:49:14,161 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:49:14,405 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:49:14,646 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:49:14,880 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:49:15,101 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:49:15,321 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 18:49:17,368 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:17,533 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:17,694 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:17,861 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:18,013 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:18,178 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:18,336 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:49:18,496 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:49:18,770 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:18,936 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:19,098 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:19,259 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:49:20,989 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:21,142 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:21,304 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:21,464 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:21,617 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:21,764 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:22,325 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:22,492 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:22,658 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:22,815 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:23,275 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:49:24,264 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:24,442 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:24,605 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:24,761 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:24,915 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:25,621 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:25,806 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:25,965 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:26,121 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:27,380 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:27,557 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:27,717 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:27,877 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:28,037 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:28,182 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:28,345 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:28,778 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:28,955 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:29,123 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:29,291 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:29,449 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:49:29,634 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:30,410 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:30,584 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:30,746 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:30,916 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:31,100 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:31,260 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:31,414 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:31,571 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:31,848 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:32,008 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:32,166 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:49:32,337 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:32,537 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:33,228 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:33,401 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:33,560 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:33,738 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:33,886 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:34,028 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:34,584 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:34,749 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:34,914 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:35,144 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:35,796 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:35,969 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:36,128 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:49:36,291 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:36,460 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:36,606 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:37,172 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:37,338 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:38,134 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 126 [2020-10-12 18:49:38,310 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:49:38,473 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:49:38,639 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:49:38,800 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:49:38,952 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:49:39,107 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:49:39,277 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:49:39,567 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:49:52,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:49:52,030 INFO L93 Difference]: Finished difference Result 2507 states and 3966 transitions. [2020-10-12 18:49:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2020-10-12 18:49:52,031 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 148 [2020-10-12 18:49:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:49:52,069 INFO L225 Difference]: With dead ends: 2507 [2020-10-12 18:49:52,070 INFO L226 Difference]: Without dead ends: 2399 [2020-10-12 18:49:52,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 28 SyntacticMatches, 7 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27123 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=10291, Invalid=56531, Unknown=0, NotChecked=0, Total=66822 [2020-10-12 18:49:52,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2020-10-12 18:49:52,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 1977. [2020-10-12 18:49:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1977 states. [2020-10-12 18:49:52,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1977 states to 1977 states and 2818 transitions. [2020-10-12 18:49:52,442 INFO L78 Accepts]: Start accepts. Automaton has 1977 states and 2818 transitions. Word has length 148 [2020-10-12 18:49:52,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:49:52,444 INFO L479 AbstractCegarLoop]: Abstraction has 1977 states and 2818 transitions. [2020-10-12 18:49:52,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 18:49:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1977 states and 2818 transitions. [2020-10-12 18:49:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:49:52,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:49:52,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:49:52,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 18:49:52,452 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:49:52,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:49:52,452 INFO L82 PathProgramCache]: Analyzing trace with hash 219996329, now seen corresponding path program 1 times [2020-10-12 18:49:52,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:49:52,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317376891] [2020-10-12 18:49:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:49:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:52,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:52,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:52,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:55,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:57,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:49:57,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 18:49:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:49:57,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-12 18:49:57,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-12 18:49:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-12 18:49:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:57,821 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:49:57,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:49:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:57,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:57,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:49:57,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:57,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:49:57,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:49:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:49:57,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:57,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:49:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:57,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:57,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:57,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:49:57,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:57,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-12 18:49:57,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:57,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 18:49:57,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:57,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-12 18:49:57,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:49:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:49:58,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:49:58,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:49:58,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:49:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:58,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:49:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:49:58,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:58,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:49:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 18:49:58,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:49:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:49:58,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:49:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:49:58,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:49:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:49:58,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:49:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 18:49:58,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:49:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 18:49:58,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:49:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:49:58,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:49:58,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 18:49:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:49:58,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:49:58,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:49:58,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 18:49:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:49:58,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:49:58,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:49:58,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:49:58,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:49:58,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:49:58,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:49:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:49:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:49:58,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 18:49:58,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:49:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:49:58,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317376891] [2020-10-12 18:49:58,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:49:58,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-10-12 18:49:58,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316001461] [2020-10-12 18:49:58,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-12 18:49:58,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:49:58,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-12 18:49:58,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2020-10-12 18:49:58,919 INFO L87 Difference]: Start difference. First operand 1977 states and 2818 transitions. Second operand 28 states. [2020-10-12 18:49:59,286 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-12 18:49:59,573 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2020-10-12 18:49:59,804 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:50:00,046 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:50:00,315 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:50:00,582 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 18:50:00,860 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-12 18:50:01,144 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 18:50:01,557 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:01,970 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:02,191 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:50:02,421 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:02,998 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:03,230 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 18:50:03,416 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:03,681 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:04,462 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:04,791 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 18:50:05,044 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:05,177 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:05,308 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:05,457 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:05,848 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-12 18:50:06,556 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:06,817 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-10-12 18:50:07,095 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:07,237 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:07,381 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:07,665 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:08,335 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:09,099 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:09,377 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-10-12 18:50:09,746 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:09,897 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:10,043 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:10,182 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:10,475 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:10,762 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:10,910 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:11,335 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:11,478 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:12,253 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:12,583 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-12 18:50:13,013 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:13,176 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:13,336 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:13,485 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:13,623 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:13,927 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:14,246 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:14,402 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:14,984 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:15,140 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:15,285 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:16,155 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:16,470 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-10-12 18:50:16,959 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:17,131 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:17,302 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:17,463 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:17,614 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:17,757 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:18,067 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:18,408 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:18,575 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:18,733 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:18,883 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:19,342 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:19,505 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:19,701 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:19,851 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:20,991 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-10-12 18:50:23,266 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:23,446 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-12 18:50:23,653 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:23,888 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:24,078 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:24,258 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:24,428 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:25,253 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:25,443 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:25,628 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:25,804 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:26,562 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-12 18:50:26,747 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:26,928 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:27,097 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:27,261 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-10-12 18:50:27,418 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:27,565 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:28,547 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:28,743 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:28,934 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:29,116 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:29,301 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-10-12 18:50:29,770 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:29,961 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:30,148 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:30,325 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:30,492 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:30,640 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:31,541 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:31,771 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:31,959 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:32,141 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:32,322 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:32,628 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:32,818 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:33,008 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:33,180 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:33,338 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-10-12 18:50:33,705 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:33,912 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:34,180 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:34,375 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:34,564 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:34,742 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:35,014 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:35,202 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:35,377 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:35,546 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-12 18:50:35,929 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:36,131 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-10-12 18:50:36,387 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:36,582 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:36,771 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:37,036 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:37,223 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:37,396 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-12 18:50:37,705 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:37,908 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-10-12 18:50:38,154 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:38,345 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:38,597 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:38,791 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-12 18:50:39,061 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:50:39,241 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-12 18:50:39,481 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:39,718 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-12 18:50:39,997 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-12 18:50:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:50:40,464 INFO L93 Difference]: Finished difference Result 4989 states and 7218 transitions. [2020-10-12 18:50:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2020-10-12 18:50:40,464 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 150 [2020-10-12 18:50:40,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:50:40,481 INFO L225 Difference]: With dead ends: 4989 [2020-10-12 18:50:40,482 INFO L226 Difference]: Without dead ends: 3091 [2020-10-12 18:50:40,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 225 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20706 ImplicationChecksByTransitivity, 29.7s TimeCoverageRelationStatistics Valid=7437, Invalid=43865, Unknown=0, NotChecked=0, Total=51302 [2020-10-12 18:50:40,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2020-10-12 18:50:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 2740. [2020-10-12 18:50:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2740 states. [2020-10-12 18:50:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2740 states to 2740 states and 3957 transitions. [2020-10-12 18:50:40,767 INFO L78 Accepts]: Start accepts. Automaton has 2740 states and 3957 transitions. Word has length 150 [2020-10-12 18:50:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:50:40,768 INFO L479 AbstractCegarLoop]: Abstraction has 2740 states and 3957 transitions. [2020-10-12 18:50:40,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-12 18:50:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 2740 states and 3957 transitions. [2020-10-12 18:50:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:50:40,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:40,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:50:40,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 18:50:40,776 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:40,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:40,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1507698785, now seen corresponding path program 1 times [2020-10-12 18:50:40,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:40,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137675584] [2020-10-12 18:50:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:40,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:40,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:40,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:41,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:41,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:45,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:45,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:50:45,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:50:45,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 18:50:45,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:45,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:50:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 18:50:45,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-12 18:50:45,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:46,116 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:50:46,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:50:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:50:46,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 18:50:46,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:50:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:50:46,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:50:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:50:46,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 18:50:46,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 18:50:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:50:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:50:46,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:50:46,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:50:46,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:50:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:50:46,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:50:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:50:46,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-12 18:50:46,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:50:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:50:46,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:50:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:46,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:46,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:46,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:50:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:50:46,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:46,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:50:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:46,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:46,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:50:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:50:46,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:46,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:50:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:50:46,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:46,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:50:46,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:50:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:50:46,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:50:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:50:46,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:50:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:50:46,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-12 18:50:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:46,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:46,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:50:46,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-12 18:50:46,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 18:50:46,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:50:46,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:50:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:50:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-12 18:50:46,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:50:46,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:50:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:50:46,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137675584] [2020-10-12 18:50:46,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:50:46,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-12 18:50:46,839 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768318597] [2020-10-12 18:50:46,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-12 18:50:46,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:50:46,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-12 18:50:46,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2020-10-12 18:50:46,841 INFO L87 Difference]: Start difference. First operand 2740 states and 3957 transitions. Second operand 16 states. [2020-10-12 18:50:47,229 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:50:47,878 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:50:48,050 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2020-10-12 18:50:48,381 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:50:49,408 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:50:49,536 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:50:50,025 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:50:50,947 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-10-12 18:50:51,277 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-12 18:50:52,203 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:53,705 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-12 18:50:54,024 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 18:50:54,556 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-10-12 18:50:56,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:50:56,269 INFO L93 Difference]: Finished difference Result 12844 states and 18719 transitions. [2020-10-12 18:50:56,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-12 18:50:56,270 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 150 [2020-10-12 18:50:56,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:50:56,318 INFO L225 Difference]: With dead ends: 12844 [2020-10-12 18:50:56,318 INFO L226 Difference]: Without dead ends: 10183 [2020-10-12 18:50:56,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=551, Invalid=2205, Unknown=0, NotChecked=0, Total=2756 [2020-10-12 18:50:56,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10183 states. [2020-10-12 18:50:57,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10183 to 10177. [2020-10-12 18:50:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10177 states. [2020-10-12 18:50:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10177 states to 10177 states and 14679 transitions. [2020-10-12 18:50:57,232 INFO L78 Accepts]: Start accepts. Automaton has 10177 states and 14679 transitions. Word has length 150 [2020-10-12 18:50:57,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:50:57,234 INFO L479 AbstractCegarLoop]: Abstraction has 10177 states and 14679 transitions. [2020-10-12 18:50:57,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-12 18:50:57,234 INFO L276 IsEmpty]: Start isEmpty. Operand 10177 states and 14679 transitions. [2020-10-12 18:50:57,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:50:57,243 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:50:57,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:50:57,244 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 18:50:57,244 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:50:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:50:57,244 INFO L82 PathProgramCache]: Analyzing trace with hash 423868795, now seen corresponding path program 1 times [2020-10-12 18:50:57,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:50:57,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1156257636] [2020-10-12 18:50:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:50:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:50:57,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:57,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:57,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:57,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:50:57,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:51:02,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 18:51:02,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 18:51:02,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:51:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:51:02,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-12 18:51:02,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,622 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:51:02,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:02,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 18:51:02,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:51:02,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:51:02,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 18:51:02,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:51:02,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:51:02,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:51:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:51:02,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:02,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:02,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:51:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:02,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:02,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:51:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:02,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:02,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:02,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:51:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:02,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:02,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:02,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:51:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:02,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:02,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:02,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:51:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:02,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:02,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:02,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:51:02,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:02,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:51:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:02,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:02,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:02,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:02,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:02,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:02,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:02,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:02,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-12 18:51:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:03,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:03,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:03,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:51:03,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:03,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 18:51:03,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:03,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:51:03,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:03,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:51:03,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:03,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:03,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:03,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:03,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:03,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:51:03,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:03,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:51:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:03,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1156257636] [2020-10-12 18:51:03,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:03,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 18:51:03,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12769560] [2020-10-12 18:51:03,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:51:03,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:03,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:51:03,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:51:03,100 INFO L87 Difference]: Start difference. First operand 10177 states and 14679 transitions. Second operand 18 states. [2020-10-12 18:51:03,554 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 186 [2020-10-12 18:51:03,791 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:51:04,889 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-12 18:51:05,231 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-12 18:51:05,728 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:06,322 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:06,822 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:07,309 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:07,816 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:08,315 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:09,133 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-10-12 18:51:09,428 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:51:09,904 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2020-10-12 18:51:10,234 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:10,550 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:10,884 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:11,208 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:11,678 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:12,029 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:12,362 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-12 18:51:12,628 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119 [2020-10-12 18:51:12,857 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:51:13,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:13,211 INFO L93 Difference]: Finished difference Result 21979 states and 31534 transitions. [2020-10-12 18:51:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:51:13,212 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 150 [2020-10-12 18:51:13,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:13,263 INFO L225 Difference]: With dead ends: 21979 [2020-10-12 18:51:13,263 INFO L226 Difference]: Without dead ends: 11881 [2020-10-12 18:51:13,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 18:51:13,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11881 states. [2020-10-12 18:51:14,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11881 to 11375. [2020-10-12 18:51:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11375 states. [2020-10-12 18:51:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11375 states to 11375 states and 16350 transitions. [2020-10-12 18:51:14,729 INFO L78 Accepts]: Start accepts. Automaton has 11375 states and 16350 transitions. Word has length 150 [2020-10-12 18:51:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:14,730 INFO L479 AbstractCegarLoop]: Abstraction has 11375 states and 16350 transitions. [2020-10-12 18:51:14,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:51:14,730 INFO L276 IsEmpty]: Start isEmpty. Operand 11375 states and 16350 transitions. [2020-10-12 18:51:14,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:51:14,736 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:14,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:51:14,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 18:51:14,736 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:14,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:14,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1953808835, now seen corresponding path program 1 times [2020-10-12 18:51:14,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:14,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845531849] [2020-10-12 18:51:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:14,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:14,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:14,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:15,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:19,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:19,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:51:19,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:51:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-12 18:51:19,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:51:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:51:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-12 18:51:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,019 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:51:20,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:20,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:51:20,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:51:20,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:51:20,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:51:20,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:51:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:51:20,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:51:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:51:20,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:51:20,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:51:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:20,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:20,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:51:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 18:51:20,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:20,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:51:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:20,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:20,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:51:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:20,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:20,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:51:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:20,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:20,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:51:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:20,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:20,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:20,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-12 18:51:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:51:20,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:51:20,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:20,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:51:20,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 18:51:20,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:51:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:20,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:20,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:20,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:20,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:20,435 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845531849] [2020-10-12 18:51:20,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:20,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 18:51:20,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54463076] [2020-10-12 18:51:20,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:51:20,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:20,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:51:20,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:51:20,437 INFO L87 Difference]: Start difference. First operand 11375 states and 16350 transitions. Second operand 18 states. [2020-10-12 18:51:20,671 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:51:20,914 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:51:21,540 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:51:22,140 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:22,758 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:23,055 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:51:23,213 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:24,950 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:25,229 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:26,035 INFO L93 Difference]: Finished difference Result 23501 states and 33571 transitions. [2020-10-12 18:51:26,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:51:26,037 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 150 [2020-10-12 18:51:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:26,080 INFO L225 Difference]: With dead ends: 23501 [2020-10-12 18:51:26,080 INFO L226 Difference]: Without dead ends: 13020 [2020-10-12 18:51:26,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=477, Invalid=1329, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 18:51:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13020 states. [2020-10-12 18:51:26,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13020 to 11802. [2020-10-12 18:51:26,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11802 states. [2020-10-12 18:51:26,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11802 states to 11802 states and 16911 transitions. [2020-10-12 18:51:26,901 INFO L78 Accepts]: Start accepts. Automaton has 11802 states and 16911 transitions. Word has length 150 [2020-10-12 18:51:26,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:26,902 INFO L479 AbstractCegarLoop]: Abstraction has 11802 states and 16911 transitions. [2020-10-12 18:51:26,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:51:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 11802 states and 16911 transitions. [2020-10-12 18:51:26,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:51:26,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:26,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:51:26,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 18:51:26,908 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:26,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:26,908 INFO L82 PathProgramCache]: Analyzing trace with hash 625459909, now seen corresponding path program 1 times [2020-10-12 18:51:26,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:26,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172869138] [2020-10-12 18:51:26,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:26,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:26,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:27,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:29,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:31,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-12 18:51:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,208 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:51:32,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:32,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:51:32,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:51:32,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:51:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:51:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:32,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:51:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:32,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:32,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:32,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:51:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:32,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:51:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:32,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:32,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:32,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:32,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:51:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:32,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 18:51:32,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:32,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:32,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:51:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:32,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:51:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:32,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:32,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-12 18:51:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:51:32,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-12 18:51:32,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:51:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:51:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:32,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:51:32,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:32,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:32,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 18:51:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:32,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:51:32,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:51:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:32,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:32,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:32,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:32,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:51:32,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:51:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:32,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:32,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172869138] [2020-10-12 18:51:32,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:32,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 18:51:32,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987776265] [2020-10-12 18:51:32,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:51:32,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:32,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:51:32,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:51:32,632 INFO L87 Difference]: Start difference. First operand 11802 states and 16911 transitions. Second operand 18 states. [2020-10-12 18:51:33,088 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 186 [2020-10-12 18:51:33,343 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:51:34,254 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-12 18:51:34,477 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-12 18:51:34,794 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:35,103 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:35,417 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:35,745 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:36,283 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-10-12 18:51:36,563 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:51:36,831 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:37,120 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:51:37,567 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2020-10-12 18:51:37,864 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:38,158 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:38,461 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:38,773 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:39,097 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-12 18:51:39,418 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119 [2020-10-12 18:51:39,657 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:51:39,979 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:40,350 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:51:40,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:40,886 INFO L93 Difference]: Finished difference Result 26238 states and 37435 transitions. [2020-10-12 18:51:40,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:51:40,887 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 150 [2020-10-12 18:51:40,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:40,937 INFO L225 Difference]: With dead ends: 26238 [2020-10-12 18:51:40,937 INFO L226 Difference]: Without dead ends: 15075 [2020-10-12 18:51:40,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 18:51:40,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15075 states. [2020-10-12 18:51:41,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15075 to 12123. [2020-10-12 18:51:41,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12123 states. [2020-10-12 18:51:41,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12123 states to 12123 states and 17338 transitions. [2020-10-12 18:51:41,957 INFO L78 Accepts]: Start accepts. Automaton has 12123 states and 17338 transitions. Word has length 150 [2020-10-12 18:51:41,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:41,958 INFO L479 AbstractCegarLoop]: Abstraction has 12123 states and 17338 transitions. [2020-10-12 18:51:41,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:51:41,958 INFO L276 IsEmpty]: Start isEmpty. Operand 12123 states and 17338 transitions. [2020-10-12 18:51:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:51:41,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:41,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:51:41,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 18:51:41,963 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:41,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:41,963 INFO L82 PathProgramCache]: Analyzing trace with hash -329023683, now seen corresponding path program 1 times [2020-10-12 18:51:41,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:41,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55808224] [2020-10-12 18:51:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:42,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:42,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:42,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:42,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:42,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:51:47,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:51:47,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-12 18:51:47,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:51:47,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:51:47,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-12 18:51:47,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,368 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:51:47,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:47,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:47,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:51:47,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:47,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:51:47,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:51:47,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 18:51:47,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:51:47,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:51:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:51:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:51:47,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:47,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:47,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:47,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:51:47,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:51:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:47,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:51:47,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:47,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:47,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:47,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:51:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:47,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 18:51:47,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:47,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:47,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:47,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:51:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:47,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 18:51:47,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:47,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:47,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:51:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:47,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:47,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:47,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:47,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:51:47,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 18:51:47,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 18:51:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:51:47,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 18:51:47,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:51:47,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:51:47,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:51:47,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 18:51:47,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:47,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:51:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:47,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:51:47,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:47,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:47,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:47,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 18:51:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:51:47,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:51:47,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:51:47,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:47,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:51:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:47,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:51:47,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:51:47,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:47,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:51:47,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55808224] [2020-10-12 18:51:47,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:51:47,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 18:51:47,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456592283] [2020-10-12 18:51:47,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:51:47,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:51:47,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:51:47,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:51:47,858 INFO L87 Difference]: Start difference. First operand 12123 states and 17338 transitions. Second operand 18 states. [2020-10-12 18:51:48,093 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 18:51:48,336 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:51:48,960 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 18:51:49,739 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-12 18:51:50,046 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 18:51:50,199 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:51,838 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-10-12 18:51:52,115 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-10-12 18:51:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:51:53,690 INFO L93 Difference]: Finished difference Result 28629 states and 40841 transitions. [2020-10-12 18:51:53,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:51:53,690 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 150 [2020-10-12 18:51:53,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:51:53,734 INFO L225 Difference]: With dead ends: 28629 [2020-10-12 18:51:53,734 INFO L226 Difference]: Without dead ends: 16940 [2020-10-12 18:51:53,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=477, Invalid=1329, Unknown=0, NotChecked=0, Total=1806 [2020-10-12 18:51:53,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16940 states. [2020-10-12 18:51:54,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16940 to 12338. [2020-10-12 18:51:54,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12338 states. [2020-10-12 18:51:54,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12338 states to 12338 states and 17631 transitions. [2020-10-12 18:51:54,670 INFO L78 Accepts]: Start accepts. Automaton has 12338 states and 17631 transitions. Word has length 150 [2020-10-12 18:51:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:51:54,670 INFO L479 AbstractCegarLoop]: Abstraction has 12338 states and 17631 transitions. [2020-10-12 18:51:54,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:51:54,670 INFO L276 IsEmpty]: Start isEmpty. Operand 12338 states and 17631 transitions. [2020-10-12 18:51:54,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:51:54,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:51:54,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:51:54,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 18:51:54,675 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:51:54,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:51:54,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1637022267, now seen corresponding path program 1 times [2020-10-12 18:51:54,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:51:54,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329977685] [2020-10-12 18:51:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:51:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:54,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:54,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:54,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:54,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:54,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:57,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:59,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-12 18:51:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:59,960 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 181 [2020-10-12 18:51:59,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 18:51:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:59,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:51:59,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:51:59,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 18:51:59,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:51:59,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:51:59,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:51:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:51:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:51:59,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 18:51:59,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:51:59,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 18:51:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:51:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 18:52:00,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-12 18:52:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 18:52:00,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:52:00,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:00,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 18:52:00,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 18:52:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:00,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:00,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-12 18:52:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:00,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:00,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:00,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-12 18:52:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:00,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 18:52:00,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 18:52:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 18:52:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 18:52:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-12 18:52:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-12 18:52:00,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-12 18:52:00,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 18:52:00,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 18:52:00,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 18:52:00,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-12 18:52:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:00,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:52:00,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:00,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:00,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:00,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-12 18:52:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:00,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:00,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:00,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:00,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:00,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-12 18:52:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:00,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 18:52:00,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:00,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:00,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-12 18:52:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-12 18:52:00,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:00,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-12 18:52:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:00,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:00,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 18:52:00,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 18:52:00,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 18:52:00,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 18:52:00,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 18:52:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 18:52:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 18:52:00,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 18:52:00,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 18:52:00,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 18:52:00,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329977685] [2020-10-12 18:52:00,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 18:52:00,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-12 18:52:00,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822293504] [2020-10-12 18:52:00,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-12 18:52:00,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 18:52:00,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-12 18:52:00,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-10-12 18:52:00,376 INFO L87 Difference]: Start difference. First operand 12338 states and 17631 transitions. Second operand 18 states. [2020-10-12 18:52:00,834 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 186 [2020-10-12 18:52:01,078 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2020-10-12 18:52:01,918 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-10-12 18:52:02,148 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 115 [2020-10-12 18:52:02,454 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:52:02,757 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:52:03,266 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-10-12 18:52:03,532 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:52:03,800 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:52:04,083 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:52:04,369 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:52:04,651 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2020-10-12 18:52:05,071 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 113 [2020-10-12 18:52:05,372 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:52:05,809 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:52:06,115 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 122 [2020-10-12 18:52:06,354 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119 [2020-10-12 18:52:06,597 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 123 [2020-10-12 18:52:06,903 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:52:07,254 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:52:07,624 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:52:08,005 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116 [2020-10-12 18:52:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 18:52:08,790 INFO L93 Difference]: Finished difference Result 30662 states and 43781 transitions. [2020-10-12 18:52:08,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-12 18:52:08,791 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 150 [2020-10-12 18:52:08,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 18:52:08,841 INFO L225 Difference]: With dead ends: 30662 [2020-10-12 18:52:08,841 INFO L226 Difference]: Without dead ends: 18603 [2020-10-12 18:52:08,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=503, Invalid=1389, Unknown=0, NotChecked=0, Total=1892 [2020-10-12 18:52:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18603 states. [2020-10-12 18:52:10,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18603 to 12441. [2020-10-12 18:52:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12441 states. [2020-10-12 18:52:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12441 states to 12441 states and 17786 transitions. [2020-10-12 18:52:10,145 INFO L78 Accepts]: Start accepts. Automaton has 12441 states and 17786 transitions. Word has length 150 [2020-10-12 18:52:10,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 18:52:10,145 INFO L479 AbstractCegarLoop]: Abstraction has 12441 states and 17786 transitions. [2020-10-12 18:52:10,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-12 18:52:10,146 INFO L276 IsEmpty]: Start isEmpty. Operand 12441 states and 17786 transitions. [2020-10-12 18:52:10,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-12 18:52:10,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 18:52:10,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 18:52:10,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 18:52:10,149 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 18:52:10,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 18:52:10,149 INFO L82 PathProgramCache]: Analyzing trace with hash 363973447, now seen corresponding path program 1 times [2020-10-12 18:52:10,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 18:52:10,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802325081] [2020-10-12 18:52:10,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 18:52:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 18:52:10,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:10,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:10,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:10,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 18:52:10,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking...