/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.3.3.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:06:46,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:06:46,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:06:46,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:06:46,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:06:46,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:06:46,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:06:46,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:06:46,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:06:46,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:06:46,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:06:46,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:06:46,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:06:46,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:06:46,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:06:46,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:06:46,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:06:46,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:06:46,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:06:46,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:06:46,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:06:46,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:06:46,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:06:46,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:06:46,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:06:46,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:06:46,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:06:46,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:06:46,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:06:46,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:06:46,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:06:46,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:06:46,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:06:46,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:06:46,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:06:46,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:06:46,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:06:46,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:06:46,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:06:46,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:06:46,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:06:46,931 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 08:06:46,969 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:06:46,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:06:46,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:06:46,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:06:46,972 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:06:46,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:06:46,972 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:06:46,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:06:46,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:06:46,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:06:46,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:06:46,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:06:46,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:06:46,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:06:46,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:06:46,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:06:46,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:06:46,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:06:46,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:06:46,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:06:46,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:06:46,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:06:46,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:06:46,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:06:46,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:06:46,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:06:46,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:06:46,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:06:46,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:06:46,978 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 08:06:47,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:06:47,290 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:06:47,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:06:47,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:06:47,295 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:06:47,296 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:06:47,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb9a21448/a3686f9b985a458e85055d5ee53d3984/FLAGa4dc80f2c [2020-10-14 08:06:47,779 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:06:47,780 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:06:47,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb9a21448/a3686f9b985a458e85055d5ee53d3984/FLAGa4dc80f2c [2020-10-14 08:06:48,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb9a21448/a3686f9b985a458e85055d5ee53d3984 [2020-10-14 08:06:48,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:06:48,167 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:06:48,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:06:48,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:06:48,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:06:48,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0619bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48, skipping insertion in model container [2020-10-14 08:06:48,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:06:48,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:06:48,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:06:48,656 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:06:48,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:06:48,748 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:06:48,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48 WrapperNode [2020-10-14 08:06:48,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:06:48,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:06:48,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:06:48,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:06:48,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (1/1) ... [2020-10-14 08:06:48,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:06:48,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:06:48,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:06:48,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:06:48,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (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 08:06:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:06:48,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:06:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:06:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:06:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:06:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-14 08:06:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:06:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:06:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:06:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:06:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:06:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:06:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:06:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:06:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:06:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:06:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:06:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:06:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:06:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:06:49,597 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:06:49,597 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:06:49,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:06:49 BoogieIcfgContainer [2020-10-14 08:06:49,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:06:49,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:06:49,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:06:49,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:06:49,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:06:48" (1/3) ... [2020-10-14 08:06:49,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce68228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:06:49, skipping insertion in model container [2020-10-14 08:06:49,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:48" (2/3) ... [2020-10-14 08:06:49,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce68228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:06:49, skipping insertion in model container [2020-10-14 08:06:49,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:06:49" (3/3) ... [2020-10-14 08:06:49,611 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.UNBOUNDED.pals.c [2020-10-14 08:06:49,622 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:06:49,630 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:06:49,644 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:06:49,670 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:06:49,670 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:06:49,670 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:06:49,670 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:06:49,671 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:06:49,671 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:06:49,671 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:06:49,671 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:06:49,693 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-10-14 08:06:49,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:06:49,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:49,707 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 08:06:49,707 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:49,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:49,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1583782225, now seen corresponding path program 1 times [2020-10-14 08:06:49,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:49,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500605472] [2020-10-14 08:06:49,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:06:50,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-14 08:06:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 08:06:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:06:50,569 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:06:50,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:06:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:06:50,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:06:50,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:50,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:50,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:06:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:06:50,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:06:50,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:50,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:50,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:06:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:06:50,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:06:50,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:06:50,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:50,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:06:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:50,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:06:50,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:50,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:50,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:06:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:50,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:06:50,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:50,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:50,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:06:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:50,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:06:50,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:50,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:06:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:50,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:50,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:50,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:06:50,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:50,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:06:50,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:50,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:50,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:50,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:06:50,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:50,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:50,869 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 08:06:50,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500605472] [2020-10-14 08:06:50,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:06:50,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:06:50,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160532035] [2020-10-14 08:06:50,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:06:50,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:06:50,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:06:50,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:06:50,894 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 6 states. [2020-10-14 08:06:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:06:52,043 INFO L93 Difference]: Finished difference Result 302 states and 480 transitions. [2020-10-14 08:06:52,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 08:06:52,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-14 08:06:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:06:52,072 INFO L225 Difference]: With dead ends: 302 [2020-10-14 08:06:52,072 INFO L226 Difference]: Without dead ends: 192 [2020-10-14 08:06:52,078 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 08:06:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-14 08:06:52,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 174. [2020-10-14 08:06:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-14 08:06:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 279 transitions. [2020-10-14 08:06:52,135 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 279 transitions. Word has length 65 [2020-10-14 08:06:52,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:06:52,135 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 279 transitions. [2020-10-14 08:06:52,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:06:52,136 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 279 transitions. [2020-10-14 08:06:52,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:06:52,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:52,139 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 08:06:52,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:06:52,140 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:52,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:52,140 INFO L82 PathProgramCache]: Analyzing trace with hash 554422927, now seen corresponding path program 1 times [2020-10-14 08:06:52,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:52,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733136086] [2020-10-14 08:06:52,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:52,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:52,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:52,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:06:52,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649 [2020-10-14 08:06:52,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:52,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:06:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 08:06:52,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:06:52,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:53,042 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:06:53,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:06:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:53,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:06:53,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:53,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:06:53,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:53,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:53,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:53,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:53,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:06:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:53,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:06:53,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:53,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 08:06:53,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:53,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:06:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:53,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:06:53,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:53,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:06:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:53,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:06:53,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:53,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:06:53,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:53,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:53,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:06:53,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:06:53,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:06:53,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:53,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:06:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:53,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:53,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:06:53,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:53,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:53,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:53,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:53,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:06:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:53,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:53,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:06:53,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:53,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:53,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:53,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:53,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:06:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:53,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:53,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:53,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:06:53,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:53,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:53,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:53,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:53,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:06:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:53,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:06:53,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:06:53,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:53,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:06:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:53,393 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 08:06:53,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733136086] [2020-10-14 08:06:53,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:06:53,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:06:53,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821119805] [2020-10-14 08:06:53,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:06:53,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:06:53,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:06:53,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:06:53,397 INFO L87 Difference]: Start difference. First operand 174 states and 279 transitions. Second operand 12 states. [2020-10-14 08:06:53,868 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:06:54,101 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:06:54,380 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:06:54,563 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:06:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:06:56,026 INFO L93 Difference]: Finished difference Result 300 states and 472 transitions. [2020-10-14 08:06:56,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:06:56,026 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-14 08:06:56,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:06:56,029 INFO L225 Difference]: With dead ends: 300 [2020-10-14 08:06:56,029 INFO L226 Difference]: Without dead ends: 192 [2020-10-14 08:06:56,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:06:56,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-14 08:06:56,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 174. [2020-10-14 08:06:56,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-14 08:06:56,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2020-10-14 08:06:56,097 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 65 [2020-10-14 08:06:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:06:56,098 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2020-10-14 08:06:56,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:06:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2020-10-14 08:06:56,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:06:56,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:56,102 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 08:06:56,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:06:56,102 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:56,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:56,103 INFO L82 PathProgramCache]: Analyzing trace with hash 551989973, now seen corresponding path program 1 times [2020-10-14 08:06:56,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:56,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077831854] [2020-10-14 08:06:56,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:56,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:56,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:56,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:56,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 08:07:01,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:07:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 08:07:01,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:07:01,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:07:01,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:01,337 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:01,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:01,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:01,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:01,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:01,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:01,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:01,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:01,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:01,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:01,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:01,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:01,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 08:07:01,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:01,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:07:01,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:01,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:01,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:01,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:01,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:01,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:01,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:01,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:01,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:01,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:01,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:01,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:01,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:01,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:01,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:01,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:01,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:01,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:01,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:01,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:01,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:01,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:01,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:01,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:01,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:01,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:01,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:01,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 08:07:01,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:07:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:07:01,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:01,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:07:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:01,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:01,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:01,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:01,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:01,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:07:01,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:01,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:01,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:01,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:01,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:01,726 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 08:07:01,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077831854] [2020-10-14 08:07:01,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:01,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:01,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697536901] [2020-10-14 08:07:01,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:01,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:01,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:01,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:01,729 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand 9 states. [2020-10-14 08:07:01,892 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:03,913 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:07:04,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:04,261 INFO L93 Difference]: Finished difference Result 420 states and 629 transitions. [2020-10-14 08:07:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:07:04,262 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-14 08:07:04,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:04,267 INFO L225 Difference]: With dead ends: 420 [2020-10-14 08:07:04,267 INFO L226 Difference]: Without dead ends: 318 [2020-10-14 08:07:04,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:07:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-14 08:07:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 276. [2020-10-14 08:07:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-14 08:07:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 408 transitions. [2020-10-14 08:07:04,305 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 408 transitions. Word has length 94 [2020-10-14 08:07:04,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:04,306 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 408 transitions. [2020-10-14 08:07:04,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 408 transitions. [2020-10-14 08:07:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:07:04,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:04,311 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 08:07:04,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:07:04,311 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:04,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:04,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1641383990, now seen corresponding path program 1 times [2020-10-14 08:07:04,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:04,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401983146] [2020-10-14 08:07:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:04,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 08:07:09,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:09,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:07:09,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:09,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 08:07:09,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,587 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:09,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:09,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 08:07:09,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:09,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:09,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 08:07:09,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:09,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:07:09,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:09,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:09,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:09,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:09,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:07:09,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:09,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:09,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:09,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:09,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:07:09,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:07:09,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:07:09,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:07:09,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:07:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:09,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:09,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:09,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:09,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:09,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:10,010 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 08:07:10,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401983146] [2020-10-14 08:07:10,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:10,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:10,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088101307] [2020-10-14 08:07:10,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:10,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:10,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:10,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:10,013 INFO L87 Difference]: Start difference. First operand 276 states and 408 transitions. Second operand 9 states. [2020-10-14 08:07:10,203 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:10,386 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:07:10,599 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:07:10,948 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-14 08:07:11,919 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:14,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:14,749 INFO L93 Difference]: Finished difference Result 1091 states and 1630 transitions. [2020-10-14 08:07:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:07:14,750 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-14 08:07:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:14,756 INFO L225 Difference]: With dead ends: 1091 [2020-10-14 08:07:14,756 INFO L226 Difference]: Without dead ends: 841 [2020-10-14 08:07:14,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:07:14,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2020-10-14 08:07:14,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 749. [2020-10-14 08:07:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-10-14 08:07:14,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1108 transitions. [2020-10-14 08:07:14,820 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1108 transitions. Word has length 96 [2020-10-14 08:07:14,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:14,821 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 1108 transitions. [2020-10-14 08:07:14,821 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:14,821 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1108 transitions. [2020-10-14 08:07:14,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:07:14,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:14,824 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 08:07:14,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:07:14,825 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:14,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:14,825 INFO L82 PathProgramCache]: Analyzing trace with hash -956873357, now seen corresponding path program 1 times [2020-10-14 08:07:14,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:14,825 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654366998] [2020-10-14 08:07:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:14,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:14,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:14,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:15,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 08:07:19,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:19,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 08:07:19,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 08:07:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,066 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:20,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:20,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:20,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:20,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:20,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:20,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:20,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:20,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:20,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:20,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:20,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:20,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:07:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:20,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:20,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:20,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:20,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:20,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:20,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:20,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:20,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:20,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:20,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:20,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:20,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:20,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:20,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:20,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:20,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:20,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:20,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:20,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:20,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:20,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:20,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:20,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:20,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:20,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:20,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:20,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:20,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:20,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:20,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:20,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:20,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:20,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:20,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:20,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:20,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:20,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:20,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:20,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:20,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:07:20,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:07:20,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:07:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:20,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:20,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:20,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:20,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:20,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:20,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:20,325 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 08:07:20,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654366998] [2020-10-14 08:07:20,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:20,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:20,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362271542] [2020-10-14 08:07:20,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:20,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:20,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:20,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:20,328 INFO L87 Difference]: Start difference. First operand 749 states and 1108 transitions. Second operand 9 states. [2020-10-14 08:07:20,516 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:20,682 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:07:20,937 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:21,100 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:07:21,694 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:23,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:23,911 INFO L93 Difference]: Finished difference Result 2308 states and 3425 transitions. [2020-10-14 08:07:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:07:23,912 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 08:07:23,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:23,924 INFO L225 Difference]: With dead ends: 2308 [2020-10-14 08:07:23,924 INFO L226 Difference]: Without dead ends: 1612 [2020-10-14 08:07:23,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:07:23,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2020-10-14 08:07:24,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1448. [2020-10-14 08:07:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1448 states. [2020-10-14 08:07:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2098 transitions. [2020-10-14 08:07:24,055 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2098 transitions. Word has length 97 [2020-10-14 08:07:24,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:24,055 INFO L479 AbstractCegarLoop]: Abstraction has 1448 states and 2098 transitions. [2020-10-14 08:07:24,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:24,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2098 transitions. [2020-10-14 08:07:24,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 08:07:24,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:24,060 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 08:07:24,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:07:24,060 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:24,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:24,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1019796933, now seen corresponding path program 1 times [2020-10-14 08:07:24,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:24,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171337497] [2020-10-14 08:07:24,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:24,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:24,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:24,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 08:07:29,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:07:29,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 08:07:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:07:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:29,313 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:29,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:29,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:29,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:29,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:07:29,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:29,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:29,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:29,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:29,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:29,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 08:07:29,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:29,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 08:07:29,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:29,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:29,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:29,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:29,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:29,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:29,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:29,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:29,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:29,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:07:29,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:29,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:29,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:29,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:29,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:29,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:07:29,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:07:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:07:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:29,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:29,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:07:29,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:29,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:29,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:07:29,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:29,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:29,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:07:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:29,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:29,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:29,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:29,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:29,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:29,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:29,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:29,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:29,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:29,687 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 08:07:29,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171337497] [2020-10-14 08:07:29,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:29,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:29,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066012217] [2020-10-14 08:07:29,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:29,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:29,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:29,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:29,694 INFO L87 Difference]: Start difference. First operand 1448 states and 2098 transitions. Second operand 9 states. [2020-10-14 08:07:29,986 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:32,086 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:07:32,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:32,457 INFO L93 Difference]: Finished difference Result 3555 states and 5304 transitions. [2020-10-14 08:07:32,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:07:32,463 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-14 08:07:32,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:32,479 INFO L225 Difference]: With dead ends: 3555 [2020-10-14 08:07:32,479 INFO L226 Difference]: Without dead ends: 2544 [2020-10-14 08:07:32,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:07:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2020-10-14 08:07:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2240. [2020-10-14 08:07:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2240 states. [2020-10-14 08:07:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2240 states to 2240 states and 3278 transitions. [2020-10-14 08:07:32,648 INFO L78 Accepts]: Start accepts. Automaton has 2240 states and 3278 transitions. Word has length 98 [2020-10-14 08:07:32,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:32,650 INFO L479 AbstractCegarLoop]: Abstraction has 2240 states and 3278 transitions. [2020-10-14 08:07:32,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:32,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2240 states and 3278 transitions. [2020-10-14 08:07:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 08:07:32,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:32,654 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 08:07:32,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:07:32,654 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:32,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:32,655 INFO L82 PathProgramCache]: Analyzing trace with hash 2033521008, now seen corresponding path program 1 times [2020-10-14 08:07:32,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:32,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646755691] [2020-10-14 08:07:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:32,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:32,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:32,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:32,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:33,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:33,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 08:07:37,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:07:37,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:07:37,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:37,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:37,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:07:37,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:37,918 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:37,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:37,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:37,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:37,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:37,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:37,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:37,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:37,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:37,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:38,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:38,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:38,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:38,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 08:07:38,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:38,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:38,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:07:38,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:38,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:38,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:38,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:38,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:38,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:38,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:38,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:38,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:38,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:38,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:38,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:38,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:38,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:38,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:38,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:38,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:38,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:38,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:38,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:38,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:38,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:07:38,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:38,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:38,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:38,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:38,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:07:38,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:07:38,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 08:07:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:38,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:38,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:38,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:07:38,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:38,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:38,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:38,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:38,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:07:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:38,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:07:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:38,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:38,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:38,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:38,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:38,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:38,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:38,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:38,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:38,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:38,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:38,366 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 08:07:38,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646755691] [2020-10-14 08:07:38,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:38,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:38,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918354576] [2020-10-14 08:07:38,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:38,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:38,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:38,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:38,380 INFO L87 Difference]: Start difference. First operand 2240 states and 3278 transitions. Second operand 9 states. [2020-10-14 08:07:38,626 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:38,818 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:07:39,065 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:07:39,407 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:07:40,242 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:43,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:43,130 INFO L93 Difference]: Finished difference Result 7975 states and 11705 transitions. [2020-10-14 08:07:43,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:07:43,130 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 100 [2020-10-14 08:07:43,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:43,161 INFO L225 Difference]: With dead ends: 7975 [2020-10-14 08:07:43,161 INFO L226 Difference]: Without dead ends: 5779 [2020-10-14 08:07:43,170 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 08:07:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5779 states. [2020-10-14 08:07:43,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5779 to 5249. [2020-10-14 08:07:43,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5249 states. [2020-10-14 08:07:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 7522 transitions. [2020-10-14 08:07:43,483 INFO L78 Accepts]: Start accepts. Automaton has 5249 states and 7522 transitions. Word has length 100 [2020-10-14 08:07:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:43,483 INFO L479 AbstractCegarLoop]: Abstraction has 5249 states and 7522 transitions. [2020-10-14 08:07:43,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 5249 states and 7522 transitions. [2020-10-14 08:07:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:07:43,493 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:43,493 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 08:07:43,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:07:43,493 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:43,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:43,494 INFO L82 PathProgramCache]: Analyzing trace with hash -97265083, now seen corresponding path program 1 times [2020-10-14 08:07:43,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:43,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209890685] [2020-10-14 08:07:43,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:43,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:44,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:44,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:07:48,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:07:48,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:07:48,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:48,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 08:07:48,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:48,722 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:48,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:48,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:07:48,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:48,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:48,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 08:07:48,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:48,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:07:48,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:48,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:48,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:48,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:48,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:48,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:48,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:48,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:48,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:48,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:48,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:48,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:48,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 08:07:49,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:49,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:49,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:49,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:49,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 08:07:49,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:49,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:07:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:07:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:49,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 08:07:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:49,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:49,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:49,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:07:49,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:49,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:49,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:49,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:07:49,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:49,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:07:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:49,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:49,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:49,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:49,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:49,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:49,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:49,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:49,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:49,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:49,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:49,178 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 08:07:49,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209890685] [2020-10-14 08:07:49,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:49,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:49,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038047475] [2020-10-14 08:07:49,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:49,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:49,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:49,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:49,183 INFO L87 Difference]: Start difference. First operand 5249 states and 7522 transitions. Second operand 9 states. [2020-10-14 08:07:49,468 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:49,666 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:07:49,910 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:07:50,396 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:07:50,985 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:54,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:54,098 INFO L93 Difference]: Finished difference Result 17914 states and 26241 transitions. [2020-10-14 08:07:54,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:07:54,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-10-14 08:07:54,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:54,182 INFO L225 Difference]: With dead ends: 17914 [2020-10-14 08:07:54,182 INFO L226 Difference]: Without dead ends: 13651 [2020-10-14 08:07:54,201 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 08:07:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2020-10-14 08:07:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 12427. [2020-10-14 08:07:54,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12427 states. [2020-10-14 08:07:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12427 states to 12427 states and 17767 transitions. [2020-10-14 08:07:54,900 INFO L78 Accepts]: Start accepts. Automaton has 12427 states and 17767 transitions. Word has length 101 [2020-10-14 08:07:54,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:54,900 INFO L479 AbstractCegarLoop]: Abstraction has 12427 states and 17767 transitions. [2020-10-14 08:07:54,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:54,901 INFO L276 IsEmpty]: Start isEmpty. Operand 12427 states and 17767 transitions. [2020-10-14 08:07:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:07:54,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:54,919 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 08:07:54,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:07:54,920 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:54,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1077146709, now seen corresponding path program 1 times [2020-10-14 08:07:54,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:54,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863354266] [2020-10-14 08:07:54,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:54,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:54,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:59,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:59,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:07:59,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:07:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:07:59,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:59,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-14 08:07:59,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 08:07:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:00,154 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:00,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:00,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:00,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:00,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:00,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:00,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:00,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:00,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:00,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:00,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:00,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:00,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 08:08:00,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:00,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:00,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:00,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:00,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:08:00,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:00,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:00,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:00,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:00,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:00,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:00,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:00,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:00,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:00,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:00,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:00,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:00,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:00,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:00,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:00,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:00,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:00,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:00,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:08:00,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:00,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:00,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:00,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:00,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:08:00,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:00,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:08:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:00,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:00,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:00,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:08:00,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:00,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:00,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:00,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:08:00,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:08:00,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:00,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:08:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:00,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:00,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:00,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:00,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:00,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:00,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:00,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:00,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:00,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:00,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:00,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:00,455 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 08:08:00,456 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863354266] [2020-10-14 08:08:00,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:00,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:00,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416660359] [2020-10-14 08:08:00,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:00,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:00,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:00,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:00,458 INFO L87 Difference]: Start difference. First operand 12427 states and 17767 transitions. Second operand 9 states. [2020-10-14 08:08:00,932 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:03,105 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:08:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:03,496 INFO L93 Difference]: Finished difference Result 23204 states and 33787 transitions. [2020-10-14 08:08:03,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:08:03,496 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:08:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:03,553 INFO L225 Difference]: With dead ends: 23204 [2020-10-14 08:08:03,553 INFO L226 Difference]: Without dead ends: 16692 [2020-10-14 08:08:03,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:08:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16692 states. [2020-10-14 08:08:04,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16692 to 14933. [2020-10-14 08:08:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14933 states. [2020-10-14 08:08:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14933 states to 14933 states and 21411 transitions. [2020-10-14 08:08:04,284 INFO L78 Accepts]: Start accepts. Automaton has 14933 states and 21411 transitions. Word has length 102 [2020-10-14 08:08:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:04,284 INFO L479 AbstractCegarLoop]: Abstraction has 14933 states and 21411 transitions. [2020-10-14 08:08:04,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:04,284 INFO L276 IsEmpty]: Start isEmpty. Operand 14933 states and 21411 transitions. [2020-10-14 08:08:04,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:08:04,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:04,301 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 08:08:04,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:08:04,302 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:04,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:04,302 INFO L82 PathProgramCache]: Analyzing trace with hash 594036974, now seen corresponding path program 1 times [2020-10-14 08:08:04,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:04,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401978393] [2020-10-14 08:08:04,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:04,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:04,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:04,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:04,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:04,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:05,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:08:09,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:09,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:08:09,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:08:09,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:08:09,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,500 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:09,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:09,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:09,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:09,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:09,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:09,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:08:09,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:08:09,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 08:08:09,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:09,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:09,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:08:09,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:08:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:08:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:09,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:09,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:09,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:09,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:08:09,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:08:09,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:08:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:09,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:09,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:09,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:09,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:09,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:08:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:08:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:09,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:08:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:09,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:09,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:09,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:09,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:09,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:09,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:09,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:09,832 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 08:08:09,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401978393] [2020-10-14 08:08:09,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:09,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:09,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185683354] [2020-10-14 08:08:09,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:09,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:09,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:09,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:09,834 INFO L87 Difference]: Start difference. First operand 14933 states and 21411 transitions. Second operand 9 states. [2020-10-14 08:08:10,016 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:11,995 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:08:13,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:13,318 INFO L93 Difference]: Finished difference Result 40144 states and 58606 transitions. [2020-10-14 08:08:13,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 08:08:13,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:08:13,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:13,419 INFO L225 Difference]: With dead ends: 40144 [2020-10-14 08:08:13,419 INFO L226 Difference]: Without dead ends: 27575 [2020-10-14 08:08:13,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:08:13,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27575 states. [2020-10-14 08:08:14,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27575 to 24836. [2020-10-14 08:08:14,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24836 states. [2020-10-14 08:08:14,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24836 states to 24836 states and 34801 transitions. [2020-10-14 08:08:14,530 INFO L78 Accepts]: Start accepts. Automaton has 24836 states and 34801 transitions. Word has length 102 [2020-10-14 08:08:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:14,530 INFO L479 AbstractCegarLoop]: Abstraction has 24836 states and 34801 transitions. [2020-10-14 08:08:14,530 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:14,531 INFO L276 IsEmpty]: Start isEmpty. Operand 24836 states and 34801 transitions. [2020-10-14 08:08:14,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 08:08:14,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:14,551 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 08:08:14,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:08:14,551 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:14,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1247351773, now seen corresponding path program 1 times [2020-10-14 08:08:14,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:14,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520386384] [2020-10-14 08:08:14,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:14,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:14,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:14,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:14,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:14,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:15,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:16,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:19,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 08:08:19,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:08:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:08:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:19,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:19,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:19,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-14 08:08:19,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:19,761 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:19,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:19,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:19,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:19,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:19,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:19,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:19,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:19,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:19,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:19,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:19,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:19,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:19,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:19,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:19,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:19,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:08:19,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:20,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:08:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:20,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:20,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:20,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:20,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:20,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:20,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:20,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:20,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:20,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:20,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:20,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:20,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:08:20,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:20,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:20,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:08:20,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:20,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:08:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:20,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:20,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:20,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:20,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:20,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:20,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:20,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:08:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:20,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:20,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:08:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:20,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:20,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:20,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:20,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 08:08:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:20,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:20,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:20,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:20,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:20,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:20,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:20,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:20,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:20,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:20,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:20,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:20,158 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 08:08:20,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520386384] [2020-10-14 08:08:20,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:20,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:08:20,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632044642] [2020-10-14 08:08:20,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:08:20,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:20,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:08:20,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:08:20,160 INFO L87 Difference]: Start difference. First operand 24836 states and 34801 transitions. Second operand 10 states. [2020-10-14 08:08:20,345 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:20,673 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:20,847 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:08:21,052 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:08:21,278 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:08:21,460 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:08:21,696 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:08:21,900 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:08:27,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:27,637 INFO L93 Difference]: Finished difference Result 59549 states and 84492 transitions. [2020-10-14 08:08:27,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-14 08:08:27,638 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-14 08:08:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:27,755 INFO L225 Difference]: With dead ends: 59549 [2020-10-14 08:08:27,755 INFO L226 Difference]: Without dead ends: 35989 [2020-10-14 08:08:27,809 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-14 08:08:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35989 states. [2020-10-14 08:08:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35989 to 33735. [2020-10-14 08:08:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33735 states. [2020-10-14 08:08:29,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33735 states to 33735 states and 46790 transitions. [2020-10-14 08:08:29,363 INFO L78 Accepts]: Start accepts. Automaton has 33735 states and 46790 transitions. Word has length 104 [2020-10-14 08:08:29,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:29,364 INFO L479 AbstractCegarLoop]: Abstraction has 33735 states and 46790 transitions. [2020-10-14 08:08:29,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:08:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 33735 states and 46790 transitions. [2020-10-14 08:08:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 08:08:29,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:29,379 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 08:08:29,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:08:29,379 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:29,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:29,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1075735234, now seen corresponding path program 1 times [2020-10-14 08:08:29,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:29,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781542439] [2020-10-14 08:08:29,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:29,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:29,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:29,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:29,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-14 08:08:34,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:08:34,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:34,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,669 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:34,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:34,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:34,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:34,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:34,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:34,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:34,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 08:08:34,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 08:08:34,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:08:34,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:08:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:34,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:34,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:34,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:08:34,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:34,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:08:34,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:34,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:08:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:34,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:34,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:34,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:34,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:34,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:08:34,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:34,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 08:08:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:34,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:08:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:34,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:08:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:34,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:08:34,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:34,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:34,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:08:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:34,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:08:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:34,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:34,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:34,851 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 08:08:34,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781542439] [2020-10-14 08:08:34,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:34,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:08:34,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884193265] [2020-10-14 08:08:34,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:08:34,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:34,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:08:34,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:08:34,852 INFO L87 Difference]: Start difference. First operand 33735 states and 46790 transitions. Second operand 7 states. [2020-10-14 08:08:35,085 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:38,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:38,229 INFO L93 Difference]: Finished difference Result 53456 states and 74226 transitions. [2020-10-14 08:08:38,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:08:38,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 105 [2020-10-14 08:08:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:38,336 INFO L225 Difference]: With dead ends: 53456 [2020-10-14 08:08:38,337 INFO L226 Difference]: Without dead ends: 35421 [2020-10-14 08:08:38,374 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 08:08:38,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35421 states. [2020-10-14 08:08:40,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35421 to 33379. [2020-10-14 08:08:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33379 states. [2020-10-14 08:08:40,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33379 states to 33379 states and 46363 transitions. [2020-10-14 08:08:40,103 INFO L78 Accepts]: Start accepts. Automaton has 33379 states and 46363 transitions. Word has length 105 [2020-10-14 08:08:40,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:40,103 INFO L479 AbstractCegarLoop]: Abstraction has 33379 states and 46363 transitions. [2020-10-14 08:08:40,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:08:40,104 INFO L276 IsEmpty]: Start isEmpty. Operand 33379 states and 46363 transitions. [2020-10-14 08:08:40,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 08:08:40,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:40,118 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 08:08:40,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:08:40,119 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:40,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:40,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1965634212, now seen corresponding path program 1 times [2020-10-14 08:08:40,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:40,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [695973860] [2020-10-14 08:08:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:40,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:43,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 08:08:45,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:08:45,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:08:45,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:45,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 08:08:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,322 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:45,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:45,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:45,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:45,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:08:45,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:08:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 08:08:45,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:45,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:08:45,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:08:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:45,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:45,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:45,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:08:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:45,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:08:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:08:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:08:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:45,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:45,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:08:45,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:08:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:08:45,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:08:45,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:08:45,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:45,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:08:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:45,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:45,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:45,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:45,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:45,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,786 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 08:08:45,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [695973860] [2020-10-14 08:08:45,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:45,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:08:45,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801463545] [2020-10-14 08:08:45,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:08:45,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:45,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:08:45,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:08:45,788 INFO L87 Difference]: Start difference. First operand 33379 states and 46363 transitions. Second operand 10 states. [2020-10-14 08:08:46,701 WARN L193 SmtUtils]: Spent 880.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:46,960 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:08:47,158 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2020-10-14 08:08:47,364 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:47,601 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:08:47,799 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:08:52,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:52,066 INFO L93 Difference]: Finished difference Result 59508 states and 82428 transitions. [2020-10-14 08:08:52,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:08:52,068 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2020-10-14 08:08:52,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:52,126 INFO L225 Difference]: With dead ends: 59508 [2020-10-14 08:08:52,126 INFO L226 Difference]: Without dead ends: 26402 [2020-10-14 08:08:52,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:08:52,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26402 states. [2020-10-14 08:08:53,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26402 to 24760. [2020-10-14 08:08:53,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24760 states. [2020-10-14 08:08:53,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24760 states to 24760 states and 34294 transitions. [2020-10-14 08:08:53,367 INFO L78 Accepts]: Start accepts. Automaton has 24760 states and 34294 transitions. Word has length 105 [2020-10-14 08:08:53,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:53,367 INFO L479 AbstractCegarLoop]: Abstraction has 24760 states and 34294 transitions. [2020-10-14 08:08:53,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:08:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 24760 states and 34294 transitions. [2020-10-14 08:08:53,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-14 08:08:53,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:53,378 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] [2020-10-14 08:08:53,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:08:53,378 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:53,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:53,379 INFO L82 PathProgramCache]: Analyzing trace with hash -2018637544, now seen corresponding path program 1 times [2020-10-14 08:08:53,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:53,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656073754] [2020-10-14 08:08:53,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:53,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:53,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:53,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:53,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:53,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:53,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:53,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:56,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 08:08:58,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:08:58,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:08:58,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:58,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 08:08:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,578 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:58,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:58,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:58,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:58,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:58,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:08:58,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:08:58,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:58,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:58,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:58,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:58,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:58,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:58,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:58,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:58,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:58,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:08:58,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:08:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:58,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:58,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:58,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:08:58,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:08:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:08:58,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:08:58,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:58,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:08:58,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:08:58,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 08:08:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:58,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:58,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:58,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:58,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:58,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:58,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:58,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:58,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:58,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:58,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:58,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656073754] [2020-10-14 08:08:58,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:58,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:58,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941212342] [2020-10-14 08:08:58,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:58,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:58,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:58,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:58,841 INFO L87 Difference]: Start difference. First operand 24760 states and 34294 transitions. Second operand 9 states. [2020-10-14 08:08:59,024 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:59,232 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:08:59,449 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:08:59,960 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-14 08:09:00,623 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:03,934 INFO L93 Difference]: Finished difference Result 38847 states and 53635 transitions. [2020-10-14 08:09:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:09:03,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2020-10-14 08:09:03,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:03,986 INFO L225 Difference]: With dead ends: 38847 [2020-10-14 08:09:03,986 INFO L226 Difference]: Without dead ends: 27564 [2020-10-14 08:09:04,000 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:09:04,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27564 states. [2020-10-14 08:09:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27564 to 25740. [2020-10-14 08:09:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25740 states. [2020-10-14 08:09:04,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25740 states to 25740 states and 35643 transitions. [2020-10-14 08:09:04,957 INFO L78 Accepts]: Start accepts. Automaton has 25740 states and 35643 transitions. Word has length 106 [2020-10-14 08:09:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:04,957 INFO L479 AbstractCegarLoop]: Abstraction has 25740 states and 35643 transitions. [2020-10-14 08:09:04,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 25740 states and 35643 transitions. [2020-10-14 08:09:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-14 08:09:04,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:04,970 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] [2020-10-14 08:09:04,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:09:04,971 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:04,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:04,971 INFO L82 PathProgramCache]: Analyzing trace with hash -119065248, now seen corresponding path program 1 times [2020-10-14 08:09:04,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:04,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449573844] [2020-10-14 08:09:04,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:04,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:09,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:09,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 08:09:09,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:09:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:09:09,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:09,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 08:09:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:09:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,151 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:10,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:10,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:10,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:10,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 08:09:10,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:09:10,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 08:09:10,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:09:10,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:09:10,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:09:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:10,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:10,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:09:10,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:09:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:09:10,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:10,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:09:10,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 08:09:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:09:10,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:09:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:09:10,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:10,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 08:09:10,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-14 08:09:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:10,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:10,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:10,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,366 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 08:09:10,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449573844] [2020-10-14 08:09:10,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:10,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:09:10,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194586337] [2020-10-14 08:09:10,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:09:10,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:10,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:09:10,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:09:10,367 INFO L87 Difference]: Start difference. First operand 25740 states and 35643 transitions. Second operand 7 states. [2020-10-14 08:09:10,568 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:12,692 INFO L93 Difference]: Finished difference Result 51842 states and 71584 transitions. [2020-10-14 08:09:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:09:12,693 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-14 08:09:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:12,749 INFO L225 Difference]: With dead ends: 51842 [2020-10-14 08:09:12,749 INFO L226 Difference]: Without dead ends: 28224 [2020-10-14 08:09:12,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:09:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28224 states. [2020-10-14 08:09:13,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28224 to 25743. [2020-10-14 08:09:13,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25743 states. [2020-10-14 08:09:13,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25743 states to 25743 states and 35647 transitions. [2020-10-14 08:09:13,747 INFO L78 Accepts]: Start accepts. Automaton has 25743 states and 35647 transitions. Word has length 107 [2020-10-14 08:09:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:13,748 INFO L479 AbstractCegarLoop]: Abstraction has 25743 states and 35647 transitions. [2020-10-14 08:09:13,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:09:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 25743 states and 35647 transitions. [2020-10-14 08:09:13,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:09:13,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:13,756 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 08:09:13,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:09:13,757 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:13,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:13,757 INFO L82 PathProgramCache]: Analyzing trace with hash 884386930, now seen corresponding path program 1 times [2020-10-14 08:09:13,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:13,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [812364796] [2020-10-14 08:09:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:13,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:13,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:14,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:17,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 08:09:18,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 08:09:18,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:09:18,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:18,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-14 08:09:18,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,954 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:18,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:18,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:18,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:18,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:18,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:18,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:09:18,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:18,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 08:09:18,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:18,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:18,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:09:18,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:19,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:09:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:19,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:19,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:19,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:19,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:19,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:19,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:19,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:19,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:19,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:09:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:19,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:19,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:19,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:09:19,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:19,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:19,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:09:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:09:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:19,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 08:09:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:19,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:19,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:19,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:19,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:19,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:19,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:19,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:19,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:19,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:09:19,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:19,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:19,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-14 08:09:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:19,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:19,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:19,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 08:09:19,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:19,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:19,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:19,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:19,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:19,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:09:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:19,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:19,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:19,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:19,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:19,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:19,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:19,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:19,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:19,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:19,205 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 08:09:19,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [812364796] [2020-10-14 08:09:19,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:19,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:19,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358064592] [2020-10-14 08:09:19,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:19,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:19,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:19,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:19,207 INFO L87 Difference]: Start difference. First operand 25743 states and 35647 transitions. Second operand 9 states. [2020-10-14 08:09:19,399 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:19,600 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:09:19,804 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:09:20,408 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-14 08:09:20,950 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:25,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:25,227 INFO L93 Difference]: Finished difference Result 79990 states and 111934 transitions. [2020-10-14 08:09:25,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:09:25,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-10-14 08:09:25,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:25,343 INFO L225 Difference]: With dead ends: 79990 [2020-10-14 08:09:25,343 INFO L226 Difference]: Without dead ends: 55591 [2020-10-14 08:09:25,382 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 08:09:25,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55591 states. [2020-10-14 08:09:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55591 to 52565. [2020-10-14 08:09:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52565 states. [2020-10-14 08:09:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52565 states to 52565 states and 71606 transitions. [2020-10-14 08:09:27,581 INFO L78 Accepts]: Start accepts. Automaton has 52565 states and 71606 transitions. Word has length 108 [2020-10-14 08:09:27,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:27,582 INFO L479 AbstractCegarLoop]: Abstraction has 52565 states and 71606 transitions. [2020-10-14 08:09:27,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:27,582 INFO L276 IsEmpty]: Start isEmpty. Operand 52565 states and 71606 transitions. [2020-10-14 08:09:27,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:09:27,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:27,599 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 08:09:27,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:09:27,599 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:27,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:27,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1841397076, now seen corresponding path program 1 times [2020-10-14 08:09:27,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:27,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837441102] [2020-10-14 08:09:27,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:27,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:27,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:27,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:27,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:27,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:28,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:32,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 08:09:32,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:09:32,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:09:32,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:32,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:32,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 08:09:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 08:09:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:32,905 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:32,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:32,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:32,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:32,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:09:32,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:32,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:32,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:32,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:32,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:33,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:33,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:09:33,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-14 08:09:33,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:33,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:33,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:09:33,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:33,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:33,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:33,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:33,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:33,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:33,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:33,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:09:33,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:33,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:33,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:33,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:09:33,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:33,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-14 08:09:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:33,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:33,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:33,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:33,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:33,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:33,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:09:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:33,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:33,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 08:09:33,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:09:33,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:33,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:09:33,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:33,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:09:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:33,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:33,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:33,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:33,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:33,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:33,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:33,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:33,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:33,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:33,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:33,395 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 08:09:33,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837441102] [2020-10-14 08:09:33,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:33,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:33,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366327725] [2020-10-14 08:09:33,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:33,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:33,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:33,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:33,396 INFO L87 Difference]: Start difference. First operand 52565 states and 71606 transitions. Second operand 9 states. [2020-10-14 08:09:33,587 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:36,956 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:09:39,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:39,142 INFO L93 Difference]: Finished difference Result 96631 states and 132482 transitions. [2020-10-14 08:09:39,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:09:39,143 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-10-14 08:09:39,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:39,273 INFO L225 Difference]: With dead ends: 96631 [2020-10-14 08:09:39,273 INFO L226 Difference]: Without dead ends: 66939 [2020-10-14 08:09:39,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:09:39,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66939 states. [2020-10-14 08:09:41,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66939 to 62700. [2020-10-14 08:09:41,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62700 states. [2020-10-14 08:09:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62700 states to 62700 states and 85354 transitions. [2020-10-14 08:09:42,100 INFO L78 Accepts]: Start accepts. Automaton has 62700 states and 85354 transitions. Word has length 108 [2020-10-14 08:09:42,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:42,100 INFO L479 AbstractCegarLoop]: Abstraction has 62700 states and 85354 transitions. [2020-10-14 08:09:42,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:42,100 INFO L276 IsEmpty]: Start isEmpty. Operand 62700 states and 85354 transitions. [2020-10-14 08:09:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:09:42,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:42,111 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 08:09:42,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:09:42,111 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:42,111 INFO L82 PathProgramCache]: Analyzing trace with hash -377339688, now seen corresponding path program 1 times [2020-10-14 08:09:42,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:42,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833190631] [2020-10-14 08:09:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:42,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:42,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:42,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:42,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:45,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:45,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:09:45,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:09:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3027 [2020-10-14 08:09:45,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:45,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:45,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 08:09:45,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 08:09:45,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:09:46,578 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:46,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:46,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:46,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:46,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:46,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:46,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:46,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:46,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:46,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:46,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:46,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:09:46,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:46,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:46,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 08:09:46,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:46,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:46,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:46,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:46,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:46,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:46,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:46,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:46,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:46,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:46,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:46,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:46,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:46,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:46,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:46,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:46,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:46,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:09:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:46,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:46,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:09:46,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:09:46,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:46,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:46,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:09:46,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:46,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:09:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:46,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:46,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:46,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:09:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:46,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:46,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:46,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:46,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:46,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:46,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:46,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:46,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:46,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:46,788 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 08:09:46,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833190631] [2020-10-14 08:09:46,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:46,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:46,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049719548] [2020-10-14 08:09:46,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:46,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:46,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:46,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:46,790 INFO L87 Difference]: Start difference. First operand 62700 states and 85354 transitions. Second operand 9 states. [2020-10-14 08:09:47,283 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:49,658 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:09:52,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:52,776 INFO L93 Difference]: Finished difference Result 142076 states and 194827 transitions. [2020-10-14 08:09:52,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:09:52,777 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-10-14 08:09:52,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:52,979 INFO L225 Difference]: With dead ends: 142076 [2020-10-14 08:09:52,980 INFO L226 Difference]: Without dead ends: 90073 [2020-10-14 08:09:53,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:09:53,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90073 states. [2020-10-14 08:09:58,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90073 to 83921. [2020-10-14 08:09:58,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83921 states. [2020-10-14 08:09:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83921 states to 83921 states and 113933 transitions. [2020-10-14 08:09:59,128 INFO L78 Accepts]: Start accepts. Automaton has 83921 states and 113933 transitions. Word has length 109 [2020-10-14 08:09:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:59,129 INFO L479 AbstractCegarLoop]: Abstraction has 83921 states and 113933 transitions. [2020-10-14 08:09:59,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:59,129 INFO L276 IsEmpty]: Start isEmpty. Operand 83921 states and 113933 transitions. [2020-10-14 08:09:59,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 08:09:59,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:59,143 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] [2020-10-14 08:09:59,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:09:59,144 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:59,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:59,144 INFO L82 PathProgramCache]: Analyzing trace with hash 316502759, now seen corresponding path program 1 times [2020-10-14 08:09:59,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:59,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6982052] [2020-10-14 08:09:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:59,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:59,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:59,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:59,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:59,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:59,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:04,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:10:04,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:10:04,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 08:10:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:10:04,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,323 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:04,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:04,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:10:04,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:10:04,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:10:04,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 08:10:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:04,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:04,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:04,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:04,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:10:04,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:04,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-14 08:10:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:10:04,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:04,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:04,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:10:04,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:04,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:10:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:04,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:10:04,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:04,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:04,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:10:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:04,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:04,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 08:10:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:04,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:04,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:04,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:04,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:04,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:04,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:04,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:04,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:04,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:04,594 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 08:10:04,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6982052] [2020-10-14 08:10:04,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:04,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:10:04,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074463000] [2020-10-14 08:10:04,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:10:04,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:04,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:10:04,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:10:04,595 INFO L87 Difference]: Start difference. First operand 83921 states and 113933 transitions. Second operand 7 states. [2020-10-14 08:10:04,803 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-14 08:10:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:09,450 INFO L93 Difference]: Finished difference Result 128030 states and 173623 transitions. [2020-10-14 08:10:09,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:10:09,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2020-10-14 08:10:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:09,620 INFO L225 Difference]: With dead ends: 128030 [2020-10-14 08:10:09,620 INFO L226 Difference]: Without dead ends: 87089 [2020-10-14 08:10:09,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:10:09,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87089 states. [2020-10-14 08:10:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87089 to 83728. [2020-10-14 08:10:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83728 states. [2020-10-14 08:10:13,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83728 states to 83728 states and 113698 transitions. [2020-10-14 08:10:13,518 INFO L78 Accepts]: Start accepts. Automaton has 83728 states and 113698 transitions. Word has length 110 [2020-10-14 08:10:13,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:10:13,519 INFO L479 AbstractCegarLoop]: Abstraction has 83728 states and 113698 transitions. [2020-10-14 08:10:13,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:10:13,519 INFO L276 IsEmpty]: Start isEmpty. Operand 83728 states and 113698 transitions. [2020-10-14 08:10:13,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-14 08:10:13,532 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:10:13,532 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] [2020-10-14 08:10:13,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:10:13,532 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:10:13,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:10:13,533 INFO L82 PathProgramCache]: Analyzing trace with hash 335430810, now seen corresponding path program 1 times [2020-10-14 08:10:13,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:10:13,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070645168] [2020-10-14 08:10:13,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:10:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:13,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:13,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:13,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:13,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:14,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:18,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:18,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 08:10:18,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:10:18,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:10:18,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:18,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-14 08:10:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-14 08:10:18,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:18,732 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:10:18,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:10:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:18,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:18,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:18,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:10:18,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:18,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:18,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:18,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:18,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:10:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:18,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:18,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:18,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:18,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-14 08:10:19,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:10:19,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-14 08:10:19,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:19,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:19,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:10:19,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:19,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-14 08:10:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:19,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:10:19,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:19,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:19,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:19,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:10:19,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:19,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-14 08:10:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:19,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:10:19,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:19,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:10:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:10:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:10:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:19,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:10:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:19,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:19,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:19,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:10:19,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:10:19,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:10:19,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:10:19,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:19,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:10:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:19,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:10:19,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:19,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:19,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 08:10:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:10:19,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:10:19,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:10:19,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:10:19,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:10:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:10:19,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:10:19,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:10:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:10:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:10:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:10:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:10:19,321 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 08:10:19,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070645168] [2020-10-14 08:10:19,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:10:19,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:10:19,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871431644] [2020-10-14 08:10:19,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:10:19,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:10:19,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:10:19,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:10:19,323 INFO L87 Difference]: Start difference. First operand 83728 states and 113698 transitions. Second operand 9 states. [2020-10-14 08:10:19,512 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:10:21,465 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:10:25,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:10:25,911 INFO L93 Difference]: Finished difference Result 152478 states and 208715 transitions. [2020-10-14 08:10:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:10:25,912 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-10-14 08:10:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:10:26,144 INFO L225 Difference]: With dead ends: 152478 [2020-10-14 08:10:26,145 INFO L226 Difference]: Without dead ends: 99197 [2020-10-14 08:10:26,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 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 08:10:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99197 states.