/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:07:29,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:07:29,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:07:29,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:07:29,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:07:29,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:07:29,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:07:29,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:07:29,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:07:29,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:07:29,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:07:29,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:07:29,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:07:29,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:07:29,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:07:29,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:07:29,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:07:29,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:07:29,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:07:29,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:07:29,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:07:29,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:07:29,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:07:29,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:07:29,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:07:29,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:07:29,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:07:29,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:07:29,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:07:29,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:07:29,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:07:29,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:07:29,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:07:29,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:07:29,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:07:29,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:07:29,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:07:29,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:07:29,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:07:29,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:07:29,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:07:29,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 08:07:30,020 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:07:30,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:07:30,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:07:30,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:07:30,022 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:07:30,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:07:30,023 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:07:30,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:07:30,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:07:30,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:07:30,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:07:30,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:07:30,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:07:30,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:07:30,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:07:30,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:07:30,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:07:30,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:07:30,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:07:30,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:07:30,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:07:30,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:07:30,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:07:30,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:07:30,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:07:30,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:07:30,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:07:30,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:07:30,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:07:30,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:07:30,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:07:30,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:07:30,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:07:30,363 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:07:30,365 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:07:30,366 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 08:07:30,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c55aa809e/9f9936c2f25845b19c4388d53ee04454/FLAG31810bca3 [2020-10-14 08:07:30,910 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:07:30,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 08:07:30,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c55aa809e/9f9936c2f25845b19c4388d53ee04454/FLAG31810bca3 [2020-10-14 08:07:31,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c55aa809e/9f9936c2f25845b19c4388d53ee04454 [2020-10-14 08:07:31,247 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:07:31,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:07:31,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:07:31,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:07:31,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:07:31,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a1b381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31, skipping insertion in model container [2020-10-14 08:07:31,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:07:31,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:07:31,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:07:31,718 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:07:31,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:07:31,832 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:07:31,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31 WrapperNode [2020-10-14 08:07:31,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:07:31,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:07:31,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:07:31,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:07:31,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... [2020-10-14 08:07:31,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:07:31,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:07:31,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:07:31,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:07:31,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:07:32,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:07:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:07:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:07:32,031 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:07:32,032 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:07:32,033 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:07:32,033 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:07:32,034 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:07:32,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:07:32,034 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:07:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:07:32,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:07:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:07:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:07:32,035 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:07:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:07:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:07:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:07:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:07:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:07:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:07:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:07:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:07:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:07:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:07:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:07:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:07:33,016 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:07:33,016 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:07:33,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:07:33 BoogieIcfgContainer [2020-10-14 08:07:33,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:07:33,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:07:33,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:07:33,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:07:33,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:07:31" (1/3) ... [2020-10-14 08:07:33,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfc583b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:07:33, skipping insertion in model container [2020-10-14 08:07:33,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:07:31" (2/3) ... [2020-10-14 08:07:33,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfc583b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:07:33, skipping insertion in model container [2020-10-14 08:07:33,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:07:33" (3/3) ... [2020-10-14 08:07:33,033 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3_overflow.ufo.UNBOUNDED.pals.c [2020-10-14 08:07:33,049 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:07:33,058 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:07:33,073 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:07:33,104 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:07:33,104 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:07:33,105 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:07:33,105 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:07:33,110 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:07:33,111 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:07:33,111 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:07:33,111 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:07:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2020-10-14 08:07:33,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:07:33,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:33,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:33,189 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:33,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:33,196 INFO L82 PathProgramCache]: Analyzing trace with hash 440389987, now seen corresponding path program 1 times [2020-10-14 08:07:33,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:33,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55956106] [2020-10-14 08:07:33,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:33,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:33,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:33,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:07:33,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:33,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-14 08:07:33,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:33,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:33,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 08:07:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 08:07:34,282 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:34,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:34,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:34,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:34,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:34,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:07:34,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:34,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:34,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:34,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:34,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:34,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:07:34,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:34,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:07:34,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:34,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:34,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:34,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:34,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:34,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:34,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:07:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:34,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:34,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:34,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:34,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:34,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:34,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:07:34,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:34,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:34,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:07:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:34,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:34,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:34,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:34,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:34,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:34,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:34,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:34,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:34,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:34,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:34,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:07:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:34,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:34,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:34,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:34,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:34,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:34,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:34,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:34,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:34,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:07:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:34,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:34,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:34,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:34,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 08:07:34,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:34,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:34,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:34,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:34,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:07:34,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:34,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:34,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:34,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:34,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:34,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:34,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:34,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:34,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:34,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:34,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55956106] [2020-10-14 08:07:34,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:34,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:07:34,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557581688] [2020-10-14 08:07:34,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:07:34,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:34,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:07:34,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:07:34,661 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 6 states. [2020-10-14 08:07:36,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:36,062 INFO L93 Difference]: Finished difference Result 287 states and 459 transitions. [2020-10-14 08:07:36,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 08:07:36,065 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-14 08:07:36,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:36,096 INFO L225 Difference]: With dead ends: 287 [2020-10-14 08:07:36,096 INFO L226 Difference]: Without dead ends: 183 [2020-10-14 08:07:36,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:36,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-14 08:07:36,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 168. [2020-10-14 08:07:36,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-14 08:07:36,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 270 transitions. [2020-10-14 08:07:36,177 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 270 transitions. Word has length 65 [2020-10-14 08:07:36,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:36,177 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 270 transitions. [2020-10-14 08:07:36,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:07:36,178 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 270 transitions. [2020-10-14 08:07:36,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:07:36,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:36,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:36,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:07:36,183 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:36,183 INFO L82 PathProgramCache]: Analyzing trace with hash -588969311, now seen corresponding path program 1 times [2020-10-14 08:07:36,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:36,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609770748] [2020-10-14 08:07:36,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:36,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:36,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:36,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:07:36,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:36,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 671 [2020-10-14 08:07:36,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:36,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:07:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 08:07:36,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:07:36,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,126 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:37,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:37,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:07:37,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:37,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:37,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:37,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:07:37,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 08:07:37,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:07:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:07:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:37,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:07:37,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:37,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:07:37,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:37,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:07:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:37,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:37,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:37,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:37,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:07:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:37,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:37,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:37,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:37,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:07:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:37,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:07:37,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:37,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:37,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:37,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:07:37,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:37,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:37,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:37,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:37,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:37,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:37,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609770748] [2020-10-14 08:07:37,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:37,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:07:37,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919529412] [2020-10-14 08:07:37,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:07:37,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:37,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:07:37,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:07:37,586 INFO L87 Difference]: Start difference. First operand 168 states and 270 transitions. Second operand 12 states. [2020-10-14 08:07:38,097 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:38,340 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:07:38,616 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:07:38,820 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:40,624 INFO L93 Difference]: Finished difference Result 285 states and 451 transitions. [2020-10-14 08:07:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:07:40,625 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-14 08:07:40,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:40,628 INFO L225 Difference]: With dead ends: 285 [2020-10-14 08:07:40,628 INFO L226 Difference]: Without dead ends: 183 [2020-10-14 08:07:40,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:07:40,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-14 08:07:40,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 168. [2020-10-14 08:07:40,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-10-14 08:07:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 240 transitions. [2020-10-14 08:07:40,664 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 240 transitions. Word has length 65 [2020-10-14 08:07:40,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:40,664 INFO L479 AbstractCegarLoop]: Abstraction has 168 states and 240 transitions. [2020-10-14 08:07:40,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:07:40,665 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 240 transitions. [2020-10-14 08:07:40,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:07:40,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:40,669 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] [2020-10-14 08:07:40,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:07:40,669 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:40,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:40,670 INFO L82 PathProgramCache]: Analyzing trace with hash -732684485, now seen corresponding path program 1 times [2020-10-14 08:07:40,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:40,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214697109] [2020-10-14 08:07:40,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:40,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:40,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:40,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:41,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:45,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:45,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 08:07:45,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:07:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 08:07:45,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:45,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:07:45,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:07:45,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:07:46,026 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:46,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:46,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:46,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:07:46,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:46,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:46,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:46,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:46,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:46,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:46,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 08:07:46,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:46,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:46,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:07:46,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:46,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:46,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:46,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:46,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:46,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:46,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:46,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:46,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:07:46,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:46,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:46,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:46,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:46,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:46,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:46,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:46,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:07:46,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:46,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:46,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:46,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:46,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:46,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:46,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:07:46,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:07:46,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:07:46,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:46,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:07:46,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:46,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:46,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:46,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:46,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:46,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:46,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:46,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:46,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214697109] [2020-10-14 08:07:46,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:46,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:46,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603055924] [2020-10-14 08:07:46,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:46,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:46,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:46,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:46,412 INFO L87 Difference]: Start difference. First operand 168 states and 240 transitions. Second operand 9 states. [2020-10-14 08:07:46,625 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:48,930 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:07:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:49,138 INFO L93 Difference]: Finished difference Result 387 states and 581 transitions. [2020-10-14 08:07:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:07:49,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-14 08:07:49,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:49,148 INFO L225 Difference]: With dead ends: 387 [2020-10-14 08:07:49,148 INFO L226 Difference]: Without dead ends: 291 [2020-10-14 08:07:49,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:07:49,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-10-14 08:07:49,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 256. [2020-10-14 08:07:49,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-14 08:07:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 377 transitions. [2020-10-14 08:07:49,192 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 377 transitions. Word has length 94 [2020-10-14 08:07:49,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:49,192 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 377 transitions. [2020-10-14 08:07:49,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 377 transitions. [2020-10-14 08:07:49,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:07:49,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:49,198 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] [2020-10-14 08:07:49,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:07:49,198 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:49,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:49,199 INFO L82 PathProgramCache]: Analyzing trace with hash -191182832, now seen corresponding path program 1 times [2020-10-14 08:07:49,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:49,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713097042] [2020-10-14 08:07:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:49,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:49,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:50,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:50,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 08:07:54,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:54,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 08:07:54,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:54,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 08:07:54,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:54,496 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:54,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:54,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:54,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:07:54,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:54,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:54,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:54,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:54,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:54,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:54,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 08:07:54,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:54,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:07:54,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:07:54,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:54,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:54,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:54,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:54,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:07:54,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:54,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:54,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:54,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:07:54,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:54,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:54,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:54,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:54,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:07:54,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:54,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:07:54,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:07:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:07:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:54,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:07:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:54,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:54,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:54,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:54,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:54,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:54,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:54,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:54,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:54,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:54,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713097042] [2020-10-14 08:07:54,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:54,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:54,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381310342] [2020-10-14 08:07:54,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:54,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:54,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:54,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:54,975 INFO L87 Difference]: Start difference. First operand 256 states and 377 transitions. Second operand 9 states. [2020-10-14 08:07:55,188 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:55,401 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:07:55,638 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:07:56,000 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-14 08:07:57,049 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:00,099 INFO L93 Difference]: Finished difference Result 999 states and 1494 transitions. [2020-10-14 08:08:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:08:00,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-14 08:08:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:00,106 INFO L225 Difference]: With dead ends: 999 [2020-10-14 08:08:00,106 INFO L226 Difference]: Without dead ends: 769 [2020-10-14 08:08:00,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:08:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-14 08:08:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 689. [2020-10-14 08:08:00,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 08:08:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1015 transitions. [2020-10-14 08:08:00,217 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1015 transitions. Word has length 96 [2020-10-14 08:08:00,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:00,218 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1015 transitions. [2020-10-14 08:08:00,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:00,218 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1015 transitions. [2020-10-14 08:08:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:08:00,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:00,225 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] [2020-10-14 08:08:00,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:08:00,226 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:00,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1289117976, now seen corresponding path program 1 times [2020-10-14 08:08:00,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:00,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551690794] [2020-10-14 08:08:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:02,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 08:08:05,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:08:05,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 08:08:05,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:05,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:05,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 08:08:05,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:05,492 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:05,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:05,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:05,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:08:05,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:05,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:05,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:05,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:05,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 08:08:05,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:05,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:08:05,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:05,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:05,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:05,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:05,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:05,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:05,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:05,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:05,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:05,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:05,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:08:05,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:05,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:05,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:05,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:05,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:05,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:05,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:05,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:05,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:05,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:05,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:05,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:08:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:05,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:05,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:05,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:08:05,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:05,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:08:05,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:05,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:05,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:08:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:05,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:05,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:05,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:05,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:05,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:05,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:05,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:05,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:05,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:05,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:05,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551690794] [2020-10-14 08:08:05,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:05,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:05,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881725389] [2020-10-14 08:08:05,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:05,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:05,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:05,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:05,915 INFO L87 Difference]: Start difference. First operand 689 states and 1015 transitions. Second operand 9 states. [2020-10-14 08:08:06,111 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:06,290 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:08:06,579 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:06,752 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:08:07,403 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:09,712 INFO L93 Difference]: Finished difference Result 2104 states and 3122 transitions. [2020-10-14 08:08:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:08:09,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 08:08:09,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:09,727 INFO L225 Difference]: With dead ends: 2104 [2020-10-14 08:08:09,727 INFO L226 Difference]: Without dead ends: 1468 [2020-10-14 08:08:09,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:08:09,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2020-10-14 08:08:09,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1328. [2020-10-14 08:08:09,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1328 states. [2020-10-14 08:08:09,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1912 transitions. [2020-10-14 08:08:09,910 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1912 transitions. Word has length 97 [2020-10-14 08:08:09,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:09,911 INFO L479 AbstractCegarLoop]: Abstraction has 1328 states and 1912 transitions. [2020-10-14 08:08:09,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:09,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1912 transitions. [2020-10-14 08:08:09,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:08:09,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:09,918 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] [2020-10-14 08:08:09,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:08:09,919 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:09,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:09,920 INFO L82 PathProgramCache]: Analyzing trace with hash -26648904, now seen corresponding path program 1 times [2020-10-14 08:08:09,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:09,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [608348360] [2020-10-14 08:08:09,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:10,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:10,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:10,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:14,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:14,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:14,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 08:08:14,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:08:14,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:14,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:14,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 08:08:14,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:15,166 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:15,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:08:15,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:15,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:15,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:15,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:15,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:15,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 08:08:15,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:15,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:15,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:08:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:15,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:15,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:15,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:15,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:15,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:15,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:15,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:15,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:15,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:15,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:08:15,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:15,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:15,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:15,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:15,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:15,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:15,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:15,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:15,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:15,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:08:15,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:15,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:15,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:15,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:15,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:15,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:08:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:15,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:15,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:15,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:15,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:08:15,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:15,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:08:15,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:15,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:15,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:08:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:15,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:15,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:15,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:15,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:15,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:15,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:15,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:15,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [608348360] [2020-10-14 08:08:15,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:15,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:15,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174528495] [2020-10-14 08:08:15,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:15,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:15,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:15,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:15,568 INFO L87 Difference]: Start difference. First operand 1328 states and 1912 transitions. Second operand 9 states. [2020-10-14 08:08:15,831 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:16,008 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:08:16,255 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:08:16,442 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:17,201 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:19,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:19,357 INFO L93 Difference]: Finished difference Result 4085 states and 5927 transitions. [2020-10-14 08:08:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:08:19,358 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 08:08:19,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:19,373 INFO L225 Difference]: With dead ends: 4085 [2020-10-14 08:08:19,373 INFO L226 Difference]: Without dead ends: 2789 [2020-10-14 08:08:19,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:08:19,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2020-10-14 08:08:19,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2547. [2020-10-14 08:08:19,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2547 states. [2020-10-14 08:08:19,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2547 states to 2547 states and 3590 transitions. [2020-10-14 08:08:19,575 INFO L78 Accepts]: Start accepts. Automaton has 2547 states and 3590 transitions. Word has length 97 [2020-10-14 08:08:19,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:19,578 INFO L479 AbstractCegarLoop]: Abstraction has 2547 states and 3590 transitions. [2020-10-14 08:08:19,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2547 states and 3590 transitions. [2020-10-14 08:08:19,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 08:08:19,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:19,585 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] [2020-10-14 08:08:19,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:08:19,585 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:19,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:19,586 INFO L82 PathProgramCache]: Analyzing trace with hash -2129487381, now seen corresponding path program 1 times [2020-10-14 08:08:19,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:19,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600288434] [2020-10-14 08:08:19,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:19,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:21,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:24,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:24,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 08:08:24,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:08:24,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:08:24,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:24,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 08:08:24,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:08:24,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:24,845 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:24,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:24,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:24,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:24,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:24,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:24,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:24,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:24,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:24,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:24,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:24,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:24,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:24,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:24,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:24,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 08:08:24,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:24,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 08:08:24,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:24,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:24,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:24,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:24,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:24,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:24,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:24,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:24,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:24,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:24,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:24,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:24,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:24,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:24,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:24,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:24,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:24,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:24,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:24,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:24,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:24,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:25,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:25,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:25,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:25,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:25,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:08:25,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:25,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:08:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:08:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:25,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:08:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:25,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:25,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:25,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:25,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:25,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:08:25,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:25,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:25,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:25,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:08:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:25,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:25,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:25,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:25,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:25,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:25,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:25,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:25,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:25,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:25,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600288434] [2020-10-14 08:08:25,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:25,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:25,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263627306] [2020-10-14 08:08:25,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:25,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:25,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:25,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:25,158 INFO L87 Difference]: Start difference. First operand 2547 states and 3590 transitions. Second operand 9 states. [2020-10-14 08:08:25,388 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:28,006 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:08:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:28,254 INFO L93 Difference]: Finished difference Result 6025 states and 8774 transitions. [2020-10-14 08:08:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:08:28,256 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-14 08:08:28,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:28,278 INFO L225 Difference]: With dead ends: 6025 [2020-10-14 08:08:28,278 INFO L226 Difference]: Without dead ends: 4281 [2020-10-14 08:08:28,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:08:28,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2020-10-14 08:08:28,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 3823. [2020-10-14 08:08:28,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3823 states. [2020-10-14 08:08:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 5462 transitions. [2020-10-14 08:08:28,558 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 5462 transitions. Word has length 98 [2020-10-14 08:08:28,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:28,559 INFO L479 AbstractCegarLoop]: Abstraction has 3823 states and 5462 transitions. [2020-10-14 08:08:28,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:28,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 5462 transitions. [2020-10-14 08:08:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 08:08:28,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:28,570 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] [2020-10-14 08:08:28,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:08:28,571 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:28,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:28,571 INFO L82 PathProgramCache]: Analyzing trace with hash 320840081, now seen corresponding path program 1 times [2020-10-14 08:08:28,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:28,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641690493] [2020-10-14 08:08:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:28,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:28,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:28,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:28,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:29,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:31,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:33,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,774 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:33,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:33,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:33,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 08:08:33,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:33,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 08:08:33,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:33,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:33,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:33,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:08:33,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:33,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:33,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:08:33,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:08:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:33,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:33,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:33,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 08:08:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:33,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:33,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:08:33,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 08:08:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:33,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:33,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:08:33,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:08:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:33,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:33,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:33,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:33,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641690493] [2020-10-14 08:08:33,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:33,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:08:33,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215293275] [2020-10-14 08:08:33,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:08:33,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:33,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:08:33,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:08:33,999 INFO L87 Difference]: Start difference. First operand 3823 states and 5462 transitions. Second operand 7 states. [2020-10-14 08:08:34,274 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:35,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:35,772 INFO L93 Difference]: Finished difference Result 6531 states and 9152 transitions. [2020-10-14 08:08:35,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:08:35,773 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2020-10-14 08:08:35,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:35,797 INFO L225 Difference]: With dead ends: 6531 [2020-10-14 08:08:35,798 INFO L226 Difference]: Without dead ends: 4704 [2020-10-14 08:08:35,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:08:35,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2020-10-14 08:08:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 3832. [2020-10-14 08:08:36,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3832 states. [2020-10-14 08:08:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 5471 transitions. [2020-10-14 08:08:36,082 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 5471 transitions. Word has length 100 [2020-10-14 08:08:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:36,083 INFO L479 AbstractCegarLoop]: Abstraction has 3832 states and 5471 transitions. [2020-10-14 08:08:36,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:08:36,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 5471 transitions. [2020-10-14 08:08:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:08:36,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:36,090 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] [2020-10-14 08:08:36,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:08:36,090 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:36,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:36,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1640522659, now seen corresponding path program 1 times [2020-10-14 08:08:36,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:36,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160868942] [2020-10-14 08:08:36,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:36,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:36,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:36,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:36,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:37,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:37,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:08:41,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:41,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:08:41,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:41,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 08:08:41,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,310 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:41,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:41,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:41,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:41,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:41,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:41,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:41,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:41,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:08:41,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:41,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:41,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:41,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:41,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:41,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:41,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:41,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:41,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:41,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:41,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:41,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:41,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:41,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:41,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:08:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:08:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 08:08:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:41,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:41,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:41,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:41,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:41,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:41,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:08:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:41,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:41,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:41,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:41,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:41,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:41,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:41,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:41,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:41,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:41,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160868942] [2020-10-14 08:08:41,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:41,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:41,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334150116] [2020-10-14 08:08:41,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:41,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:41,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:41,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:41,604 INFO L87 Difference]: Start difference. First operand 3832 states and 5471 transitions. Second operand 9 states. [2020-10-14 08:08:41,808 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:42,018 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:08:42,276 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:08:42,799 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:08:43,396 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:46,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:46,509 INFO L93 Difference]: Finished difference Result 12938 states and 18953 transitions. [2020-10-14 08:08:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:08:46,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-10-14 08:08:46,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:46,567 INFO L225 Difference]: With dead ends: 12938 [2020-10-14 08:08:46,567 INFO L226 Difference]: Without dead ends: 9746 [2020-10-14 08:08:46,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:08:46,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2020-10-14 08:08:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 8878. [2020-10-14 08:08:47,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8878 states. [2020-10-14 08:08:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8878 states to 8878 states and 12646 transitions. [2020-10-14 08:08:47,238 INFO L78 Accepts]: Start accepts. Automaton has 8878 states and 12646 transitions. Word has length 101 [2020-10-14 08:08:47,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:47,238 INFO L479 AbstractCegarLoop]: Abstraction has 8878 states and 12646 transitions. [2020-10-14 08:08:47,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:47,238 INFO L276 IsEmpty]: Start isEmpty. Operand 8878 states and 12646 transitions. [2020-10-14 08:08:47,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:08:47,252 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:47,252 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] [2020-10-14 08:08:47,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:08:47,253 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:47,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:47,253 INFO L82 PathProgramCache]: Analyzing trace with hash 332973972, now seen corresponding path program 1 times [2020-10-14 08:08:47,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:47,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386374981] [2020-10-14 08:08:47,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:47,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:47,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:47,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:47,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:47,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:08:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,526 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:52,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:52,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:52,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:08:52,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:08:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:52,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:52,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:52,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:52,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:52,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:08:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:52,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:52,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:52,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:08:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:52,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:52,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:52,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:08:52,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:52,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:08:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:52,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:52,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:08:52,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:52,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:08:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:52,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:52,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:52,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:52,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:52,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:52,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:52,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:52,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:52,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:52,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386374981] [2020-10-14 08:08:52,979 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:52,979 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:08:52,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97258153] [2020-10-14 08:08:52,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:08:52,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:52,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:08:52,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:08:52,980 INFO L87 Difference]: Start difference. First operand 8878 states and 12646 transitions. Second operand 10 states. [2020-10-14 08:08:53,168 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:53,520 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:08:53,739 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:08:53,955 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:58,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:58,558 INFO L93 Difference]: Finished difference Result 20253 states and 29287 transitions. [2020-10-14 08:08:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:08:58,558 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-14 08:08:58,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:58,615 INFO L225 Difference]: With dead ends: 20253 [2020-10-14 08:08:58,615 INFO L226 Difference]: Without dead ends: 12149 [2020-10-14 08:08:58,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:08:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12149 states. [2020-10-14 08:08:59,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12149 to 11171. [2020-10-14 08:08:59,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11171 states. [2020-10-14 08:08:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11171 states to 11171 states and 15756 transitions. [2020-10-14 08:08:59,377 INFO L78 Accepts]: Start accepts. Automaton has 11171 states and 15756 transitions. Word has length 101 [2020-10-14 08:08:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:59,377 INFO L479 AbstractCegarLoop]: Abstraction has 11171 states and 15756 transitions. [2020-10-14 08:08:59,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:08:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 11171 states and 15756 transitions. [2020-10-14 08:08:59,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:08:59,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:59,397 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] [2020-10-14 08:08:59,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:08:59,398 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:59,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1664918297, now seen corresponding path program 1 times [2020-10-14 08:08:59,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:59,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526915238] [2020-10-14 08:08:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:59,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:59,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:59,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:59,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:00,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:09:04,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:09:04,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 08:09:04,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:09:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:04,622 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:04,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:04,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:04,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:04,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:04,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:04,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:04,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:04,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:09:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 08:09:04,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:09:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:09:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:04,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:04,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:04,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:04,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:04,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:04,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:04,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:04,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:09:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:04,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:04,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:09:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:05,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:05,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:05,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:09:05,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:05,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:05,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:09:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:05,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:09:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:05,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:05,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:05,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:05,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:05,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:05,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:05,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:05,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:05,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526915238] [2020-10-14 08:09:05,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:05,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:09:05,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999260365] [2020-10-14 08:09:05,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:09:05,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:05,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:09:05,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:09:05,074 INFO L87 Difference]: Start difference. First operand 11171 states and 15756 transitions. Second operand 10 states. [2020-10-14 08:09:05,273 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:05,559 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:09:05,775 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:09:05,993 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:06,251 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:09:06,461 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:09:11,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:11,520 INFO L93 Difference]: Finished difference Result 29150 states and 41752 transitions. [2020-10-14 08:09:11,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:09:11,520 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-14 08:09:11,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:11,588 INFO L225 Difference]: With dead ends: 29150 [2020-10-14 08:09:11,588 INFO L226 Difference]: Without dead ends: 18966 [2020-10-14 08:09:11,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:09:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18966 states. [2020-10-14 08:09:12,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18966 to 17467. [2020-10-14 08:09:12,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17467 states. [2020-10-14 08:09:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17467 states to 17467 states and 24629 transitions. [2020-10-14 08:09:12,826 INFO L78 Accepts]: Start accepts. Automaton has 17467 states and 24629 transitions. Word has length 101 [2020-10-14 08:09:12,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:12,826 INFO L479 AbstractCegarLoop]: Abstraction has 17467 states and 24629 transitions. [2020-10-14 08:09:12,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:09:12,826 INFO L276 IsEmpty]: Start isEmpty. Operand 17467 states and 24629 transitions. [2020-10-14 08:09:12,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:09:12,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:12,851 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] [2020-10-14 08:09:12,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:09:12,852 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:12,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:12,852 INFO L82 PathProgramCache]: Analyzing trace with hash 487915131, now seen corresponding path program 1 times [2020-10-14 08:09:12,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:12,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206804691] [2020-10-14 08:09:12,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:12,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:12,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:17,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:09:17,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:09:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:09:17,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:17,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-14 08:09:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 08:09:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,076 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:18,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:18,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:18,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:18,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:18,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:09:18,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:09:18,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:18,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:18,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:09:18,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:18,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:09:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:18,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:18,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:18,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:18,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:09:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:18,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:18,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:18,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:18,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:18,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:18,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:09:18,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 08:09:18,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:18,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:09:18,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:09:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:18,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:09:18,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:18,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206804691] [2020-10-14 08:09:18,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:18,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:18,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660533454] [2020-10-14 08:09:18,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:18,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:18,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:18,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:18,313 INFO L87 Difference]: Start difference. First operand 17467 states and 24629 transitions. Second operand 9 states. [2020-10-14 08:09:18,827 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:22,394 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:09:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:23,182 INFO L93 Difference]: Finished difference Result 39570 states and 56370 transitions. [2020-10-14 08:09:23,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:09:23,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:09:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:23,280 INFO L225 Difference]: With dead ends: 39570 [2020-10-14 08:09:23,281 INFO L226 Difference]: Without dead ends: 25273 [2020-10-14 08:09:23,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:09:23,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25273 states. [2020-10-14 08:09:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25273 to 23355. [2020-10-14 08:09:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23355 states. [2020-10-14 08:09:25,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23355 states to 23355 states and 32910 transitions. [2020-10-14 08:09:25,786 INFO L78 Accepts]: Start accepts. Automaton has 23355 states and 32910 transitions. Word has length 102 [2020-10-14 08:09:25,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:25,787 INFO L479 AbstractCegarLoop]: Abstraction has 23355 states and 32910 transitions. [2020-10-14 08:09:25,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:25,787 INFO L276 IsEmpty]: Start isEmpty. Operand 23355 states and 32910 transitions. [2020-10-14 08:09:25,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:09:25,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:25,806 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] [2020-10-14 08:09:25,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:09:25,807 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:25,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:25,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1482092654, now seen corresponding path program 1 times [2020-10-14 08:09:25,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:25,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202882384] [2020-10-14 08:09:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:25,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:25,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:25,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:26,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:26,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:26,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:30,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:30,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:30,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:09:30,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:09:30,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:09:30,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:30,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:30,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:30,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:30,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:09:30,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,018 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:31,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:31,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:31,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:31,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:31,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:31,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:31,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:31,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:09:31,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:09:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:31,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:31,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:31,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:31,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:31,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:31,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:31,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:31,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:31,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:31,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:31,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:31,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:31,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:31,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:31,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:31,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:31,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:31,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:09:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:31,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:31,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:31,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:31,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:31,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:09:31,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:31,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:31,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:31,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:31,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:31,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:31,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:31,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:31,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:31,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:09:31,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:31,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:31,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:31,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:09:31,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:09:31,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:09:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:31,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:31,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:31,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:31,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:31,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:31,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:31,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:31,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202882384] [2020-10-14 08:09:31,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:31,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:31,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144875972] [2020-10-14 08:09:31,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:31,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:31,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:31,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:31,279 INFO L87 Difference]: Start difference. First operand 23355 states and 32910 transitions. Second operand 9 states. [2020-10-14 08:09:31,464 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:31,718 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:09:31,944 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:09:32,465 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-14 08:09:33,126 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:37,399 INFO L93 Difference]: Finished difference Result 37035 states and 52067 transitions. [2020-10-14 08:09:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:09:37,400 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:09:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:37,514 INFO L225 Difference]: With dead ends: 37035 [2020-10-14 08:09:37,514 INFO L226 Difference]: Without dead ends: 27003 [2020-10-14 08:09:37,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:09:37,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27003 states. [2020-10-14 08:09:38,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27003 to 25442. [2020-10-14 08:09:38,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25442 states. [2020-10-14 08:09:38,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25442 states to 25442 states and 35859 transitions. [2020-10-14 08:09:38,940 INFO L78 Accepts]: Start accepts. Automaton has 25442 states and 35859 transitions. Word has length 102 [2020-10-14 08:09:38,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:38,941 INFO L479 AbstractCegarLoop]: Abstraction has 25442 states and 35859 transitions. [2020-10-14 08:09:38,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:38,941 INFO L276 IsEmpty]: Start isEmpty. Operand 25442 states and 35859 transitions. [2020-10-14 08:09:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 08:09:38,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:38,967 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] [2020-10-14 08:09:38,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:09:38,967 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:38,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:38,967 INFO L82 PathProgramCache]: Analyzing trace with hash 452256846, now seen corresponding path program 1 times [2020-10-14 08:09:38,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:38,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553745796] [2020-10-14 08:09:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:38,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:39,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:39,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:39,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:39,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:39,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:40,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:40,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:41,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 08:09:44,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:09:44,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:09:44,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:44,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 08:09:44,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:09:44,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,180 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:44,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:44,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:44,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:09:44,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:09:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:44,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:44,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:44,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:44,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:44,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:44,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:44,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:44,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:44,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:09:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:44,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:44,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:44,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:44,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:44,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:44,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:44,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:09:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:44,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:44,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:09:44,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:44,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:44,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:09:44,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:09:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:44,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:44,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:44,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:44,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:44,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:44,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:44,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:44,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:44,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:44,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:44,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553745796] [2020-10-14 08:09:44,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:44,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:44,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612421803] [2020-10-14 08:09:44,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:44,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:44,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:44,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:44,412 INFO L87 Difference]: Start difference. First operand 25442 states and 35859 transitions. Second operand 9 states. [2020-10-14 08:09:44,610 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:45,798 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-14 08:09:48,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:48,103 INFO L93 Difference]: Finished difference Result 47062 states and 66791 transitions. [2020-10-14 08:09:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:09:48,103 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-10-14 08:09:48,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:48,220 INFO L225 Difference]: With dead ends: 47062 [2020-10-14 08:09:48,220 INFO L226 Difference]: Without dead ends: 33388 [2020-10-14 08:09:48,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:09:48,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33388 states. [2020-10-14 08:09:49,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33388 to 31372. [2020-10-14 08:09:49,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31372 states. [2020-10-14 08:09:49,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31372 states to 31372 states and 44241 transitions. [2020-10-14 08:09:49,761 INFO L78 Accepts]: Start accepts. Automaton has 31372 states and 44241 transitions. Word has length 103 [2020-10-14 08:09:49,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:49,761 INFO L479 AbstractCegarLoop]: Abstraction has 31372 states and 44241 transitions. [2020-10-14 08:09:49,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:49,761 INFO L276 IsEmpty]: Start isEmpty. Operand 31372 states and 44241 transitions. [2020-10-14 08:09:49,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 08:09:49,771 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:49,772 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] [2020-10-14 08:09:49,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:09:49,772 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:49,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:49,772 INFO L82 PathProgramCache]: Analyzing trace with hash -689956265, now seen corresponding path program 1 times [2020-10-14 08:09:49,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:49,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831567163] [2020-10-14 08:09:49,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:49,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:49,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:50,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:54,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:54,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 08:09:54,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:09:54,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:09:54,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:54,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:54,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:54,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:54,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:09:54,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:55,082 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:55,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:55,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:55,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:55,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:09:55,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:55,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:55,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:55,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:55,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:55,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:09:55,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:55,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:55,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:55,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:09:55,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 08:09:55,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:55,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:55,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:09:55,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:55,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:55,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:55,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:55,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:55,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:55,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:55,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:55,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:55,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:55,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:55,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:55,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:55,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:55,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:55,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:09:55,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:55,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:55,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:55,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:55,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:55,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:09:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:55,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:55,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:09:55,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:55,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:09:55,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:55,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:55,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:55,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:09:55,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:09:55,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:55,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:09:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:55,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:55,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:55,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:55,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:09:55,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:55,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:55,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:55,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:09:55,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:55,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 08:09:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:55,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:55,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:55,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:55,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:55,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:55,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:55,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:55,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:55,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:55,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:55,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:55,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831567163] [2020-10-14 08:09:55,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:55,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:09:55,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726386917] [2020-10-14 08:09:55,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:09:55,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:55,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:09:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:09:55,618 INFO L87 Difference]: Start difference. First operand 31372 states and 44241 transitions. Second operand 10 states. [2020-10-14 08:09:55,818 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:56,359 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:56,556 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:09:56,769 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:09:56,939 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:09:57,136 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:10:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:01,278 INFO L93 Difference]: Finished difference Result 44465 states and 62533 transitions. [2020-10-14 08:10:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:10:01,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-14 08:10:01,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:01,363 INFO L225 Difference]: With dead ends: 44465 [2020-10-14 08:10:01,363 INFO L226 Difference]: Without dead ends: 26877 [2020-10-14 08:10:01,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:10:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26877 states. [2020-10-14 08:10:03,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26877 to 25223. [2020-10-14 08:10:03,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25223 states. [2020-10-14 08:10:03,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25223 states to 25223 states and 35701 transitions. [2020-10-14 08:10:03,078 INFO L78 Accepts]: Start accepts. Automaton has 25223 states and 35701 transitions. Word has length 104 [2020-10-14 08:10:03,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:03,078 INFO L479 AbstractCegarLoop]: Abstraction has 25223 states and 35701 transitions. [2020-10-14 08:10:03,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:10:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 25223 states and 35701 transitions. [2020-10-14 08:10:03,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 08:10:03,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:03,087 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] [2020-10-14 08:10:03,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:10:03,087 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:03,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:03,088 INFO L82 PathProgramCache]: Analyzing trace with hash 337449035, now seen corresponding path program 1 times [2020-10-14 08:10:03,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:03,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [702745023] [2020-10-14 08:10:03,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:03,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:03,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:03,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:03,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 08:10:08,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:10:08,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 08:10:08,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:08,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:10:08,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:10:08,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:08,307 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:08,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:08,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:08,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:08,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:08,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:08,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:08,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:10:08,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:08,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:10:08,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:08,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:08,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:08,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:10:08,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:08,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:08,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:08,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:08,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:10:08,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:10:08,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:08,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:10:08,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:08,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:10:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:08,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:08,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:08,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:10:08,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:08,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:08,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:10:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:08,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:08,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:08,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:08,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:08,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:08,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:08,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:10:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:08,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:08,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:08,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:08,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:08,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:08,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:08,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:08,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:08,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:08,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [702745023] [2020-10-14 08:10:08,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:08,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:08,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444747881] [2020-10-14 08:10:08,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:08,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:08,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:08,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:08,551 INFO L87 Difference]: Start difference. First operand 25223 states and 35701 transitions. Second operand 9 states. [2020-10-14 08:10:08,763 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:10,589 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:10:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:13,036 INFO L93 Difference]: Finished difference Result 66964 states and 95004 transitions. [2020-10-14 08:10:13,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:10:13,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 105 [2020-10-14 08:10:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:13,164 INFO L225 Difference]: With dead ends: 66964 [2020-10-14 08:10:13,165 INFO L226 Difference]: Without dead ends: 44086 [2020-10-14 08:10:13,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:10:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44086 states. [2020-10-14 08:10:16,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44086 to 40012. [2020-10-14 08:10:16,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40012 states. [2020-10-14 08:10:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40012 states to 40012 states and 54670 transitions. [2020-10-14 08:10:16,732 INFO L78 Accepts]: Start accepts. Automaton has 40012 states and 54670 transitions. Word has length 105 [2020-10-14 08:10:16,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:16,733 INFO L479 AbstractCegarLoop]: Abstraction has 40012 states and 54670 transitions. [2020-10-14 08:10:16,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:10:16,733 INFO L276 IsEmpty]: Start isEmpty. Operand 40012 states and 54670 transitions. [2020-10-14 08:10:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:10:16,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:16,740 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] [2020-10-14 08:10:16,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:10:16,740 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:16,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:16,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1741968371, now seen corresponding path program 1 times [2020-10-14 08:10:16,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:16,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508354719] [2020-10-14 08:10:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:16,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:16,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:16,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:16,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:17,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:21,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:21,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 08:10:21,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:10:21,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:10:21,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:21,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:21,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:10:21,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:10:21,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:21,948 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:21,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:21,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:21,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:21,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:21,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:21,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:21,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:21,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:22,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:22,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:22,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 08:10:22,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:22,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:10:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:22,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:10:22,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:22,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:22,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:22,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:22,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:22,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:22,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:22,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:22,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:22,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:22,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:22,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:10:22,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:10:22,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:22,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:10:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:22,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:22,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:22,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:22,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:22,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:22,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:22,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:22,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:10:22,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:22,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:22,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 08:10:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:22,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:22,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:22,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:22,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:22,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:22,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:10:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:22,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:22,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:22,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:22,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:22,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:22,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:22,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508354719] [2020-10-14 08:10:22,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:22,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:22,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767591468] [2020-10-14 08:10:22,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:22,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:22,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:22,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:22,196 INFO L87 Difference]: Start difference. First operand 40012 states and 54670 transitions. Second operand 9 states. [2020-10-14 08:10:22,414 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:22,601 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:10:22,794 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:10:22,991 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:10:23,712 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:10:28,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:28,124 INFO L93 Difference]: Finished difference Result 85965 states and 117397 transitions. [2020-10-14 08:10:28,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:10:28,125 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-10-14 08:10:28,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:28,236 INFO L225 Difference]: With dead ends: 85965 [2020-10-14 08:10:28,236 INFO L226 Difference]: Without dead ends: 45954 [2020-10-14 08:10:28,291 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:10:28,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45954 states. [2020-10-14 08:10:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45954 to 42849. [2020-10-14 08:10:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42849 states. [2020-10-14 08:10:30,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42849 states to 42849 states and 58454 transitions. [2020-10-14 08:10:30,723 INFO L78 Accepts]: Start accepts. Automaton has 42849 states and 58454 transitions. Word has length 108 [2020-10-14 08:10:30,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:30,723 INFO L479 AbstractCegarLoop]: Abstraction has 42849 states and 58454 transitions. [2020-10-14 08:10:30,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:10:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 42849 states and 58454 transitions. [2020-10-14 08:10:30,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:10:30,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:30,731 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] [2020-10-14 08:10:30,732 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:10:30,732 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:30,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:30,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1600197221, now seen corresponding path program 1 times [2020-10-14 08:10:30,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:30,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037864617] [2020-10-14 08:10:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:30,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:30,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:30,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:30,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:30,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:35,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 08:10:35,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:35,927 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:35,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:35,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:35,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:35,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:35,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:35,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:35,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:35,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:35,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:35,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:35,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:35,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:35,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:35,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:35,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:35,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:35,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:35,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:10:35,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:35,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:35,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:35,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:35,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 08:10:35,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:35,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:35,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:35,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:35,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:35,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:35,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:35,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:35,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:35,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:36,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:36,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:36,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:10:36,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:36,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:10:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:36,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:36,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:36,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:10:36,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:10:36,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:36,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:36,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:10:36,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:10:36,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:10:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:36,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:36,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:36,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:36,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:36,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:36,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:36,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:36,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:36,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:10:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:36,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:36,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:36,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:36,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:36,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:36,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:36,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:36,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:36,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:36,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:36,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037864617] [2020-10-14 08:10:36,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:36,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:36,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258692118] [2020-10-14 08:10:36,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:36,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:36,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:36,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:36,162 INFO L87 Difference]: Start difference. First operand 42849 states and 58454 transitions. Second operand 9 states. [2020-10-14 08:10:36,643 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:38,804 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:10:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:41,686 INFO L93 Difference]: Finished difference Result 99702 states and 136891 transitions. [2020-10-14 08:10:41,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:10:41,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-10-14 08:10:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:41,837 INFO L225 Difference]: With dead ends: 99702 [2020-10-14 08:10:41,838 INFO L226 Difference]: Without dead ends: 61292 [2020-10-14 08:10:41,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:10:41,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61292 states. [2020-10-14 08:10:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61292 to 57726. [2020-10-14 08:10:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57726 states. [2020-10-14 08:10:45,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57726 states to 57726 states and 78315 transitions. [2020-10-14 08:10:45,241 INFO L78 Accepts]: Start accepts. Automaton has 57726 states and 78315 transitions. Word has length 109 [2020-10-14 08:10:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:45,241 INFO L479 AbstractCegarLoop]: Abstraction has 57726 states and 78315 transitions. [2020-10-14 08:10:45,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:10:45,241 INFO L276 IsEmpty]: Start isEmpty. Operand 57726 states and 78315 transitions. [2020-10-14 08:10:45,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:10:45,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:45,248 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] [2020-10-14 08:10:45,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:10:45,248 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:45,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:45,248 INFO L82 PathProgramCache]: Analyzing trace with hash -947069976, now seen corresponding path program 1 times [2020-10-14 08:10:45,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:45,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [547621239] [2020-10-14 08:10:45,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:45,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:45,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:45,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:45,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:45,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:46,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:10:50,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:50,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:10:50,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 08:10:50,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:10:50,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,479 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:50,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:50,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:10:50,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:10:50,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:10:50,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:50,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 08:10:50,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:10:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:50,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:50,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:10:50,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:50,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:10:50,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:50,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:50,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:10:50,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:10:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:10:50,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:10:50,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:50,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:50,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:10:50,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:10:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:50,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:50,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:10:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:50,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:50,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:50,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:50,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:50,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:50,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:50,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:50,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:50,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:10:50,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [547621239] [2020-10-14 08:10:50,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:50,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:50,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262439441] [2020-10-14 08:10:50,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:50,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:50,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:50,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:50,719 INFO L87 Difference]: Start difference. First operand 57726 states and 78315 transitions. Second operand 9 states. [2020-10-14 08:10:50,921 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:56,729 INFO L93 Difference]: Finished difference Result 105630 states and 144196 transitions. [2020-10-14 08:10:56,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:10:56,731 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-10-14 08:10:56,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:56,913 INFO L225 Difference]: With dead ends: 105630 [2020-10-14 08:10:56,913 INFO L226 Difference]: Without dead ends: 71093 [2020-10-14 08:10:56,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:10:57,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71093 states. [2020-10-14 08:11:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71093 to 68462. [2020-10-14 08:11:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68462 states. [2020-10-14 08:11:00,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68462 states to 68462 states and 93134 transitions. [2020-10-14 08:11:00,961 INFO L78 Accepts]: Start accepts. Automaton has 68462 states and 93134 transitions. Word has length 109 [2020-10-14 08:11:00,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:11:00,961 INFO L479 AbstractCegarLoop]: Abstraction has 68462 states and 93134 transitions. [2020-10-14 08:11:00,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:11:00,962 INFO L276 IsEmpty]: Start isEmpty. Operand 68462 states and 93134 transitions. [2020-10-14 08:11:00,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 08:11:00,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:11:00,966 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] [2020-10-14 08:11:00,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:11:00,966 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:11:00,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:11:00,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1434240100, now seen corresponding path program 1 times [2020-10-14 08:11:00,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:11:00,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908996579] [2020-10-14 08:11:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:11:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:11:01,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:01,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:11:01,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking...