/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_floodmax.3.2.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:19:06,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:19:06,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:19:06,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:19:06,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:19:06,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:19:06,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:19:06,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:19:06,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:19:06,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:19:06,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:19:06,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:19:06,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:19:06,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:19:06,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:19:07,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:19:07,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:19:07,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:19:07,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:19:07,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:19:07,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:19:07,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:19:07,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:19:07,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:19:07,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:19:07,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:19:07,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:19:07,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:19:07,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:19:07,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:19:07,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:19:07,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:19:07,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:19:07,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:19:07,035 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:19:07,035 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:19:07,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:19:07,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:19:07,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:19:07,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:19:07,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:19:07,039 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 [2020-10-15 02:19:07,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:19:07,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:19:07,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:19:07,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:19:07,089 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:19:07,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:19:07,090 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:19:07,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:19:07,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:19:07,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:19:07,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:19:07,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:19:07,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:19:07,092 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:19:07,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:19:07,093 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:19:07,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:19:07,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:19:07,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:19:07,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:19:07,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:19:07,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:19:07,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:19:07,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:19:07,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:19:07,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:19:07,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:19:07,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:19:07,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:19:07,095 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:19:07,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:19:07,425 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:19:07,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:19:07,433 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:19:07,434 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:19:07,434 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:19:07,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4fd84613/c94cddc7df174ab0a8843fe8cf3d9608/FLAGf0b540a53 [2020-10-15 02:19:08,031 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:19:08,032 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_floodmax.3.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:19:08,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4fd84613/c94cddc7df174ab0a8843fe8cf3d9608/FLAGf0b540a53 [2020-10-15 02:19:08,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4fd84613/c94cddc7df174ab0a8843fe8cf3d9608 [2020-10-15 02:19:08,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:19:08,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:19:08,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:19:08,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:19:08,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:19:08,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08, skipping insertion in model container [2020-10-15 02:19:08,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:19:08,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:19:08,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:19:08,701 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:19:08,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:19:08,875 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:19:08,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08 WrapperNode [2020-10-15 02:19:08,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:19:08,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:19:08,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:19:08,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:19:08,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (1/1) ... [2020-10-15 02:19:08,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:19:08,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:19:08,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:19:08,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:19:08,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (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 [2020-10-15 02:19:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:19:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:19:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-15 02:19:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-15 02:19:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-15 02:19:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-15 02:19:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-15 02:19:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:19:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-15 02:19:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:19:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 02:19:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 02:19:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-10-15 02:19:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-15 02:19:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-15 02:19:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-15 02:19:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-15 02:19:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-15 02:19:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-15 02:19:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-15 02:19:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-15 02:19:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-15 02:19:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:19:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:19:09,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:19:09,769 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:19:09,770 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 02:19:09,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:19:09 BoogieIcfgContainer [2020-10-15 02:19:09,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:19:09,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:19:09,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:19:09,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:19:09,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:19:08" (1/3) ... [2020-10-15 02:19:09,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55261856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:19:09, skipping insertion in model container [2020-10-15 02:19:09,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:19:08" (2/3) ... [2020-10-15 02:19:09,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55261856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:19:09, skipping insertion in model container [2020-10-15 02:19:09,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:19:09" (3/3) ... [2020-10-15 02:19:09,786 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.2.ufo.UNBOUNDED.pals.c [2020-10-15 02:19:09,797 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:19:09,806 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:19:09,821 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:19:09,848 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:19:09,848 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:19:09,848 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:19:09,848 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:19:09,849 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:19:09,849 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:19:09,849 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:19:09,849 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:19:09,873 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-15 02:19:09,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:19:09,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:09,886 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] [2020-10-15 02:19:09,887 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:09,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:09,894 INFO L82 PathProgramCache]: Analyzing trace with hash -2064574487, now seen corresponding path program 1 times [2020-10-15 02:19:09,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:09,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37179409] [2020-10-15 02:19:09,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:10,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:10,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:10,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:19:10,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:10,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-15 02:19:10,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:10,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:10,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-15 02:19:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:19:10,909 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:10,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:10,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:10,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:10,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:10,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:10,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:19:10,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:10,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:10,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:10,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:10,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:10,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:10,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:19:10,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:10,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:19:10,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:10,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:10,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:10,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:10,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:10,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:11,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:19:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:11,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:11,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:11,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:11,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:11,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:19:11,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:11,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:11,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:11,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:11,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:19:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:11,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:11,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:11,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:11,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:19:11,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:11,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:11,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:11,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:11,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:11,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:11,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:19:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:11,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:11,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:11,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:11,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:11,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:19:11,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:11,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:11,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:11,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:11,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:11,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:19:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:11,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:11,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:11,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:11,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:11,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:19:11,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:11,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:11,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37179409] [2020-10-15 02:19:11,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:11,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 02:19:11,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395023551] [2020-10-15 02:19:11,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 02:19:11,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:11,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 02:19:11,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-15 02:19:11,187 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 6 states. [2020-10-15 02:19:12,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:12,184 INFO L93 Difference]: Finished difference Result 266 states and 426 transitions. [2020-10-15 02:19:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 02:19:12,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-10-15 02:19:12,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:12,200 INFO L225 Difference]: With dead ends: 266 [2020-10-15 02:19:12,200 INFO L226 Difference]: Without dead ends: 170 [2020-10-15 02:19:12,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:19:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-15 02:19:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 155. [2020-10-15 02:19:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-15 02:19:12,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 251 transitions. [2020-10-15 02:19:12,268 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 251 transitions. Word has length 58 [2020-10-15 02:19:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:12,268 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 251 transitions. [2020-10-15 02:19:12,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 02:19:12,269 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 251 transitions. [2020-10-15 02:19:12,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-15 02:19:12,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:12,276 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] [2020-10-15 02:19:12,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:19:12,276 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:12,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:12,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2136961045, now seen corresponding path program 1 times [2020-10-15 02:19:12,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:12,278 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532122045] [2020-10-15 02:19:12,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:12,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:12,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:12,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-15 02:19:12,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:12,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-10-15 02:19:12,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:12,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:19:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-15 02:19:12,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:19:12,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:13,120 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:13,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:13,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:13,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:13,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:13,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:13,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:19:13,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:13,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:13,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:13,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:13,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:13,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:13,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:13,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:13,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:13,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-15 02:19:13,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:13,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-15 02:19:13,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:13,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:13,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-15 02:19:13,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:13,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-15 02:19:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:13,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:13,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:13,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:13,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:13,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:13,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:13,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:13,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:13,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-15 02:19:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:13,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:13,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:13,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:13,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:13,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:13,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:13,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:13,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:13,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:13,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-15 02:19:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:13,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:13,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:13,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:13,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:13,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:13,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:13,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:13,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:13,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:13,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:13,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-15 02:19:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:13,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:13,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:13,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:13,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:13,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:19:13,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:13,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:13,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:13,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:13,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532122045] [2020-10-15 02:19:13,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:13,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:19:13,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614317458] [2020-10-15 02:19:13,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:19:13,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:13,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:19:13,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:19:13,405 INFO L87 Difference]: Start difference. First operand 155 states and 251 transitions. Second operand 10 states. [2020-10-15 02:19:13,820 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:19:13,980 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:19:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:15,394 INFO L93 Difference]: Finished difference Result 266 states and 419 transitions. [2020-10-15 02:19:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-15 02:19:15,395 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2020-10-15 02:19:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:15,398 INFO L225 Difference]: With dead ends: 266 [2020-10-15 02:19:15,399 INFO L226 Difference]: Without dead ends: 170 [2020-10-15 02:19:15,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:19:15,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-15 02:19:15,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 155. [2020-10-15 02:19:15,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-15 02:19:15,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 224 transitions. [2020-10-15 02:19:15,420 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 224 transitions. Word has length 58 [2020-10-15 02:19:15,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:15,420 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 224 transitions. [2020-10-15 02:19:15,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:19:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 224 transitions. [2020-10-15 02:19:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-15 02:19:15,424 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:15,424 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] [2020-10-15 02:19:15,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:19:15,424 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:15,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:15,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1617040130, now seen corresponding path program 1 times [2020-10-15 02:19:15,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:15,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511452664] [2020-10-15 02:19:15,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:15,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:15,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:15,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:16,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:20,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:20,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-15 02:19:20,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:19:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 02:19:20,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:20,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:20,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:19:20,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 02:19:20,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:20,675 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:20,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:20,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:20,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:20,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:20,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:20,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:19:20,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:20,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:20,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:20,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:20,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:20,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:20,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:20,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:19:20,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:20,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:19:20,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:20,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 02:19:20,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:20,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:20,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:20,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:20,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:20,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:20,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:19:20,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:20,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:20,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:20,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:20,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:20,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:20,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:20,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:20,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:20,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:20,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:20,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:19:20,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:20,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:20,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:19:20,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:19:20,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:19:20,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:19:20,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-15 02:19:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:20,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:20,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:20,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:20,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:20,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:20,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:20,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:20,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:20,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:20,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:19:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:20,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:20,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:20,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:20,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:20,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:20,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:20,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:20,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:20,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:21,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:21,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511452664] [2020-10-15 02:19:21,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:21,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:19:21,019 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055078661] [2020-10-15 02:19:21,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:19:21,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:21,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:19:21,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:19:21,021 INFO L87 Difference]: Start difference. First operand 155 states and 224 transitions. Second operand 9 states. [2020-10-15 02:19:21,175 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:19:23,174 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:19:23,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:23,448 INFO L93 Difference]: Finished difference Result 371 states and 556 transitions. [2020-10-15 02:19:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:19:23,449 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-15 02:19:23,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:23,454 INFO L225 Difference]: With dead ends: 371 [2020-10-15 02:19:23,454 INFO L226 Difference]: Without dead ends: 281 [2020-10-15 02:19:23,456 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:19:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-15 02:19:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 245. [2020-10-15 02:19:23,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-10-15 02:19:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 365 transitions. [2020-10-15 02:19:23,491 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 365 transitions. Word has length 84 [2020-10-15 02:19:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:23,492 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 365 transitions. [2020-10-15 02:19:23,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:19:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 365 transitions. [2020-10-15 02:19:23,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-15 02:19:23,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:23,498 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] [2020-10-15 02:19:23,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:19:23,498 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:23,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:23,498 INFO L82 PathProgramCache]: Analyzing trace with hash 675000657, now seen corresponding path program 1 times [2020-10-15 02:19:23,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:23,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1379618900] [2020-10-15 02:19:23,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:23,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:23,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:23,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:24,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:28,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:28,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 02:19:28,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:19:28,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-15 02:19:28,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:28,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:19:28,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:19:28,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:28,743 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:28,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:28,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:28,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:28,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:28,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:28,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:19:28,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:28,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:28,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:28,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:28,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:28,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:28,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:28,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:19:28,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:28,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-15 02:19:28,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:28,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:28,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-15 02:19:28,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:28,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:28,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:28,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:28,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:28,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:19:28,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:28,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:28,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:28,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:28,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:28,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:28,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:28,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:28,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:19:28,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:28,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:19:28,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:28,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:28,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:19:28,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:19:28,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-15 02:19:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:29,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:29,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:29,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:29,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:29,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:19:29,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:29,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:29,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:29,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-15 02:19:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:29,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:29,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:29,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:29,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:19:29,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:29,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:29,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:29,059 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1379618900] [2020-10-15 02:19:29,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:29,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:19:29,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252170089] [2020-10-15 02:19:29,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:19:29,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:29,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:19:29,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:19:29,063 INFO L87 Difference]: Start difference. First operand 245 states and 365 transitions. Second operand 9 states. [2020-10-15 02:19:29,228 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:19:29,377 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:19:29,576 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:19:29,739 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:19:30,355 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:19:32,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:32,198 INFO L93 Difference]: Finished difference Result 749 states and 1121 transitions. [2020-10-15 02:19:32,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:19:32,199 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2020-10-15 02:19:32,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:32,203 INFO L225 Difference]: With dead ends: 749 [2020-10-15 02:19:32,203 INFO L226 Difference]: Without dead ends: 522 [2020-10-15 02:19:32,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:19:32,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-10-15 02:19:32,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 469. [2020-10-15 02:19:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2020-10-15 02:19:32,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 688 transitions. [2020-10-15 02:19:32,251 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 688 transitions. Word has length 86 [2020-10-15 02:19:32,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:32,251 INFO L479 AbstractCegarLoop]: Abstraction has 469 states and 688 transitions. [2020-10-15 02:19:32,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:19:32,252 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 688 transitions. [2020-10-15 02:19:32,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-15 02:19:32,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:32,256 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] [2020-10-15 02:19:32,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:19:32,256 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:32,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:32,257 INFO L82 PathProgramCache]: Analyzing trace with hash 423078837, now seen corresponding path program 1 times [2020-10-15 02:19:32,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:32,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1425756204] [2020-10-15 02:19:32,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:32,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:32,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:32,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:32,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:33,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:37,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:19:37,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:19:37,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-15 02:19:37,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:37,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:19:37,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:19:37,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:37,452 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:37,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:37,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:37,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:37,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:37,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:19:37,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:37,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:37,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:37,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:37,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:37,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:37,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:19:37,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:19:37,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-15 02:19:37,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:37,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 02:19:37,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 02:19:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:37,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:19:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:37,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:37,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:37,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:37,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:19:37,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:37,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:37,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:37,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:37,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:37,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:19:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:37,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:37,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:19:37,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:37,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:19:37,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:37,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:37,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:37,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:19:37,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:19:37,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:37,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-15 02:19:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:37,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:37,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:37,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:37,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:37,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:37,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:37,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-15 02:19:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:37,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:37,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:37,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:37,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:37,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:19:37,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:37,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:37,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:37,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:37,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:37,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1425756204] [2020-10-15 02:19:37,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:37,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:19:37,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684916788] [2020-10-15 02:19:37,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:19:37,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:37,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:19:37,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:19:37,851 INFO L87 Difference]: Start difference. First operand 469 states and 688 transitions. Second operand 10 states. [2020-10-15 02:19:38,014 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:19:38,303 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:19:38,497 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:19:38,711 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:19:38,953 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:19:39,163 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:19:42,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:42,642 INFO L93 Difference]: Finished difference Result 1721 states and 2536 transitions. [2020-10-15 02:19:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-15 02:19:42,643 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-10-15 02:19:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:42,651 INFO L225 Difference]: With dead ends: 1721 [2020-10-15 02:19:42,651 INFO L226 Difference]: Without dead ends: 1291 [2020-10-15 02:19:42,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:19:42,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2020-10-15 02:19:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1174. [2020-10-15 02:19:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-10-15 02:19:42,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1708 transitions. [2020-10-15 02:19:42,738 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1708 transitions. Word has length 87 [2020-10-15 02:19:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:42,738 INFO L479 AbstractCegarLoop]: Abstraction has 1174 states and 1708 transitions. [2020-10-15 02:19:42,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:19:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1708 transitions. [2020-10-15 02:19:42,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:19:42,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:42,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:19:42,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:19:42,743 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:42,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:42,744 INFO L82 PathProgramCache]: Analyzing trace with hash -901948958, now seen corresponding path program 1 times [2020-10-15 02:19:42,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:42,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657614570] [2020-10-15 02:19:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:42,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:42,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:42,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:42,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:43,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:45,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:19:47,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:19:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-15 02:19:47,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:19:47,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-15 02:19:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,960 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:47,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:47,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:47,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:47,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:47,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:19:47,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:47,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:47,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:47,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:47,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:47,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:47,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:47,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:48,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:48,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:19:48,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:48,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:19:48,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:48,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:48,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:48,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:48,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:19:48,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:48,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:48,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:48,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:48,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:48,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:19:48,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:48,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:48,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:48,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:48,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:48,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:48,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:48,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:19:48,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:48,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:19:48,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:48,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-15 02:19:48,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:19:48,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:48,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:19:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:48,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:48,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:48,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:48,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:48,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:19:48,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:48,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:48,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:48,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:48,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:48,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:19:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:48,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:48,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:48,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:48,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:48,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:48,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:48,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:48,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:48,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:48,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:48,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657614570] [2020-10-15 02:19:48,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:48,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:19:48,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90115857] [2020-10-15 02:19:48,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:19:48,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:48,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:19:48,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:19:48,248 INFO L87 Difference]: Start difference. First operand 1174 states and 1708 transitions. Second operand 9 states. [2020-10-15 02:19:48,464 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:19:48,698 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:19:48,896 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-10-15 02:19:49,208 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 153 [2020-10-15 02:19:50,103 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:19:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:19:52,412 INFO L93 Difference]: Finished difference Result 3994 states and 5917 transitions. [2020-10-15 02:19:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:19:52,413 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:19:52,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:19:52,430 INFO L225 Difference]: With dead ends: 3994 [2020-10-15 02:19:52,430 INFO L226 Difference]: Without dead ends: 2867 [2020-10-15 02:19:52,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:19:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2020-10-15 02:19:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 2619. [2020-10-15 02:19:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2619 states. [2020-10-15 02:19:52,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 3834 transitions. [2020-10-15 02:19:52,606 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 3834 transitions. Word has length 88 [2020-10-15 02:19:52,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:19:52,608 INFO L479 AbstractCegarLoop]: Abstraction has 2619 states and 3834 transitions. [2020-10-15 02:19:52,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:19:52,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 3834 transitions. [2020-10-15 02:19:52,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-15 02:19:52,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:19:52,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:19:52,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:19:52,616 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:19:52,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:19:52,616 INFO L82 PathProgramCache]: Analyzing trace with hash 244600310, now seen corresponding path program 1 times [2020-10-15 02:19:52,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:19:52,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379389407] [2020-10-15 02:19:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:19:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:52,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:52,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:52,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:57,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:57,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-15 02:19:57,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:19:57,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-15 02:19:57,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:57,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:19:57,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:19:57,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:57,826 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:19:57,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:19:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:57,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:57,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:57,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:19:57,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:57,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:19:57,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:57,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:57,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:57,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:57,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:19:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:57,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:57,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:57,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:19:57,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:57,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:19:57,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:57,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:19:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:57,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:57,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:57,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:19:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:57,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:57,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:57,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:57,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:57,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:19:57,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:57,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:19:57,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:19:57,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:58,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:19:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:58,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:58,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:58,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:19:58,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:58,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:19:58,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:58,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:19:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:19:58,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:19:58,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:58,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-15 02:19:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:58,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:58,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:58,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:58,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:58,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:19:58,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:58,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:58,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:58,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:58,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:19:58,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-15 02:19:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:19:58,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:19:58,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:19:58,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:19:58,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:19:58,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:19:58,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:19:58,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:19:58,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:19:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:19:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:19:58,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:19:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:19:58,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379389407] [2020-10-15 02:19:58,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:19:58,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:19:58,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001833138] [2020-10-15 02:19:58,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:19:58,117 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:19:58,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:19:58,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:19:58,118 INFO L87 Difference]: Start difference. First operand 2619 states and 3834 transitions. Second operand 9 states. [2020-10-15 02:19:58,331 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:19:58,496 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:19:58,716 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:19:58,897 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:19:59,500 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:01,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:01,454 INFO L93 Difference]: Finished difference Result 4975 states and 7239 transitions. [2020-10-15 02:20:01,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:20:01,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-10-15 02:20:01,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:01,469 INFO L225 Difference]: With dead ends: 4975 [2020-10-15 02:20:01,469 INFO L226 Difference]: Without dead ends: 2779 [2020-10-15 02:20:01,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:01,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2020-10-15 02:20:01,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 1717. [2020-10-15 02:20:01,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1717 states. [2020-10-15 02:20:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2431 transitions. [2020-10-15 02:20:01,610 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2431 transitions. Word has length 88 [2020-10-15 02:20:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:01,611 INFO L479 AbstractCegarLoop]: Abstraction has 1717 states and 2431 transitions. [2020-10-15 02:20:01,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2431 transitions. [2020-10-15 02:20:01,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 02:20:01,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:01,617 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] [2020-10-15 02:20:01,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:20:01,617 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:01,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:01,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1210315595, now seen corresponding path program 1 times [2020-10-15 02:20:01,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:01,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012117739] [2020-10-15 02:20:01,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:01,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:01,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:01,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:01,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:01,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:02,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:06,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:06,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 02:20:06,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:20:06,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-15 02:20:06,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:06,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:06,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:20:06,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:06,841 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:06,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:06,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:06,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:06,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:06,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:06,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:20:06,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:06,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:06,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:06,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:06,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:06,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:06,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:06,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:06,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:06,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:06,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:06,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:20:06,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:06,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:06,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-15 02:20:06,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:07,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:07,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:07,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:07,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:07,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:07,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:07,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:07,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:07,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:07,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:07,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:07,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:07,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:20:07,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:07,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:20:07,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:07,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:07,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:07,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:20:07,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:20:07,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:07,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 02:20:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:07,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:07,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:07,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:07,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:07,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 02:20:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:07,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:07,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:07,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:07,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:07,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:20:07,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:07,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:07,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:07,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:07,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012117739] [2020-10-15 02:20:07,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:07,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:07,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184231408] [2020-10-15 02:20:07,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:07,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:07,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:07,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:07,130 INFO L87 Difference]: Start difference. First operand 1717 states and 2431 transitions. Second operand 9 states. [2020-10-15 02:20:07,314 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:07,534 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:20:07,729 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:20:08,339 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 153 [2020-10-15 02:20:08,864 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:11,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:11,214 INFO L93 Difference]: Finished difference Result 6101 states and 8600 transitions. [2020-10-15 02:20:11,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:20:11,215 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2020-10-15 02:20:11,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:11,236 INFO L225 Difference]: With dead ends: 6101 [2020-10-15 02:20:11,237 INFO L226 Difference]: Without dead ends: 4527 [2020-10-15 02:20:11,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:20:11,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2020-10-15 02:20:11,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4304. [2020-10-15 02:20:11,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4304 states. [2020-10-15 02:20:11,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 5983 transitions. [2020-10-15 02:20:11,496 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 5983 transitions. Word has length 89 [2020-10-15 02:20:11,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:11,496 INFO L479 AbstractCegarLoop]: Abstraction has 4304 states and 5983 transitions. [2020-10-15 02:20:11,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:11,496 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 5983 transitions. [2020-10-15 02:20:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 02:20:11,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:11,509 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] [2020-10-15 02:20:11,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:20:11,509 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:11,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:11,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1097137316, now seen corresponding path program 1 times [2020-10-15 02:20:11,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:11,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [855280363] [2020-10-15 02:20:11,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:11,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:11,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:15,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:16,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:16,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:16,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:20:16,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-15 02:20:16,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-15 02:20:16,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:16,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:20:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:20:16,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-15 02:20:16,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:16,735 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:16,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:16,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:16,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:16,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:16,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:16,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:16,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:16,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:16,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:16,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:20:16,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:16,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:16,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:16,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:16,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:16,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:16,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:20:16,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:16,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:16,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:16,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:20:16,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:16,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:16,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:16,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:16,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:16,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:16,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:16,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:16,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:16,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:16,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:16,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:16,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:16,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:20:16,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:20:16,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:17,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:20:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:17,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:17,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:17,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:17,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:20:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:17,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:17,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:17,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:17,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:17,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:20:17,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:17,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:17,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:17,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:17,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [855280363] [2020-10-15 02:20:17,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:17,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:20:17,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106440123] [2020-10-15 02:20:17,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:20:17,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:17,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:20:17,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:20:17,037 INFO L87 Difference]: Start difference. First operand 4304 states and 5983 transitions. Second operand 14 states. [2020-10-15 02:20:17,243 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:17,412 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:17,863 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:20:18,200 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:20,323 INFO L93 Difference]: Finished difference Result 7194 states and 10177 transitions. [2020-10-15 02:20:20,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:20:20,324 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 90 [2020-10-15 02:20:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:20,354 INFO L225 Difference]: With dead ends: 7194 [2020-10-15 02:20:20,354 INFO L226 Difference]: Without dead ends: 6625 [2020-10-15 02:20:20,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:20:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2020-10-15 02:20:20,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 5312. [2020-10-15 02:20:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5312 states. [2020-10-15 02:20:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5312 states to 5312 states and 7450 transitions. [2020-10-15 02:20:20,767 INFO L78 Accepts]: Start accepts. Automaton has 5312 states and 7450 transitions. Word has length 90 [2020-10-15 02:20:20,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:20,768 INFO L479 AbstractCegarLoop]: Abstraction has 5312 states and 7450 transitions. [2020-10-15 02:20:20,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:20:20,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5312 states and 7450 transitions. [2020-10-15 02:20:20,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 02:20:20,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:20,782 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] [2020-10-15 02:20:20,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:20:20,783 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:20,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:20,784 INFO L82 PathProgramCache]: Analyzing trace with hash -956588706, now seen corresponding path program 1 times [2020-10-15 02:20:20,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:20,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711337817] [2020-10-15 02:20:20,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:20,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:20,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:20,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:21,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:21,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:22,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:25,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:25,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:20:25,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:20:25,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-15 02:20:25,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:25,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:25,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:20:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:20:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 02:20:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:26,009 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:26,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:26,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:26,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:26,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 02:20:26,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:26,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:26,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:26,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:26,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:26,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-15 02:20:26,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:26,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:26,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:20:26,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:26,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:26,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:26,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:26,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:26,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:26,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:26,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:26,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:26,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:26,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:26,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:26,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:26,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:26,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:20:26,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:20:26,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:26,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:26,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:20:26,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:20:26,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:20:26,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:26,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:20:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:26,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:26,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:26,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:26,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:26,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:20:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:26,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:26,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:26,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:26,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:26,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:20:26,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:26,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:26,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:26,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:26,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711337817] [2020-10-15 02:20:26,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:26,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-15 02:20:26,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451029192] [2020-10-15 02:20:26,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-15 02:20:26,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:26,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-15 02:20:26,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-15 02:20:26,327 INFO L87 Difference]: Start difference. First operand 5312 states and 7450 transitions. Second operand 14 states. [2020-10-15 02:20:26,535 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:26,706 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:27,095 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:20:27,436 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:29,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:29,702 INFO L93 Difference]: Finished difference Result 7242 states and 10222 transitions. [2020-10-15 02:20:29,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:20:29,703 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 90 [2020-10-15 02:20:29,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:29,747 INFO L225 Difference]: With dead ends: 7242 [2020-10-15 02:20:29,747 INFO L226 Difference]: Without dead ends: 6640 [2020-10-15 02:20:29,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:20:29,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6640 states. [2020-10-15 02:20:30,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6640 to 5288. [2020-10-15 02:20:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5288 states. [2020-10-15 02:20:30,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7384 transitions. [2020-10-15 02:20:30,055 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7384 transitions. Word has length 90 [2020-10-15 02:20:30,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:30,056 INFO L479 AbstractCegarLoop]: Abstraction has 5288 states and 7384 transitions. [2020-10-15 02:20:30,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-15 02:20:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7384 transitions. [2020-10-15 02:20:30,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-15 02:20:30,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:30,067 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] [2020-10-15 02:20:30,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:20:30,067 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:30,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:30,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1532940256, now seen corresponding path program 1 times [2020-10-15 02:20:30,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:30,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623458620] [2020-10-15 02:20:30,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:30,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:30,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:30,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:30,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:33,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:33,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-15 02:20:33,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:20:33,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3227 [2020-10-15 02:20:33,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:33,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:33,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:33,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-15 02:20:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:20:33,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:33,488 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:33,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:33,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:33,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:33,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:33,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:33,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:33,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:33,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:33,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:33,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:33,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:33,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:33,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:33,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:33,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:33,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:20:33,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:33,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:20:33,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:33,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:33,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:20:33,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:33,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:20:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:33,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:33,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:33,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:33,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:33,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:33,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:33,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:20:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:33,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:33,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:33,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:20:33,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:33,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:20:33,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:33,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:33,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:20:33,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:33,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:20:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:33,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:33,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:33,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:33,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:20:33,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:33,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:20:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:20:33,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:20:33,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:33,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-15 02:20:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:33,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:33,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:33,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:33,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:33,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:33,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623458620] [2020-10-15 02:20:33,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:33,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:33,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226153705] [2020-10-15 02:20:33,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:33,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:33,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:33,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:33,691 INFO L87 Difference]: Start difference. First operand 5288 states and 7384 transitions. Second operand 9 states. [2020-10-15 02:20:33,887 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:36,121 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2020-10-15 02:20:36,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:36,470 INFO L93 Difference]: Finished difference Result 11688 states and 16801 transitions. [2020-10-15 02:20:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:20:36,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 90 [2020-10-15 02:20:36,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:36,503 INFO L225 Difference]: With dead ends: 11688 [2020-10-15 02:20:36,503 INFO L226 Difference]: Without dead ends: 8536 [2020-10-15 02:20:36,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:36,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8536 states. [2020-10-15 02:20:37,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8536 to 8021. [2020-10-15 02:20:37,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8021 states. [2020-10-15 02:20:37,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8021 states to 8021 states and 11391 transitions. [2020-10-15 02:20:37,054 INFO L78 Accepts]: Start accepts. Automaton has 8021 states and 11391 transitions. Word has length 90 [2020-10-15 02:20:37,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:37,055 INFO L479 AbstractCegarLoop]: Abstraction has 8021 states and 11391 transitions. [2020-10-15 02:20:37,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:37,055 INFO L276 IsEmpty]: Start isEmpty. Operand 8021 states and 11391 transitions. [2020-10-15 02:20:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-15 02:20:37,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:37,066 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] [2020-10-15 02:20:37,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:20:37,067 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:37,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:37,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1520206478, now seen corresponding path program 1 times [2020-10-15 02:20:37,067 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:37,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281164047] [2020-10-15 02:20:37,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:37,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:37,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:37,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:37,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:38,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:39,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:42,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-15 02:20:42,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 02:20:42,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-15 02:20:42,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:42,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:42,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-15 02:20:42,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:42,254 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:42,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:42,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:42,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:42,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:42,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:42,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:42,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:42,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:20:42,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:20:42,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-15 02:20:42,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:42,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 02:20:42,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:20:42,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:42,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-15 02:20:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:42,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:42,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:42,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:42,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:42,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:42,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:42,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:42,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-15 02:20:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:42,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:42,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:20:42,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:42,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:42,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:42,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:42,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:20:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:42,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:20:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:42,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:42,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:42,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:42,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-15 02:20:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:42,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:42,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:42,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:42,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:42,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:20:42,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:42,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:42,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:42,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:42,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281164047] [2020-10-15 02:20:42,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:42,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:20:42,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078817884] [2020-10-15 02:20:42,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:20:42,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:42,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:20:42,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:20:42,505 INFO L87 Difference]: Start difference. First operand 8021 states and 11391 transitions. Second operand 10 states. [2020-10-15 02:20:42,683 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:42,982 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:43,260 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:20:43,484 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:43,748 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:20:43,933 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-15 02:20:44,145 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-15 02:20:44,345 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-15 02:20:47,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:47,970 INFO L93 Difference]: Finished difference Result 19203 states and 27571 transitions. [2020-10-15 02:20:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-15 02:20:47,970 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 92 [2020-10-15 02:20:47,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:48,012 INFO L225 Difference]: With dead ends: 19203 [2020-10-15 02:20:48,013 INFO L226 Difference]: Without dead ends: 11272 [2020-10-15 02:20:48,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:20:48,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11272 states. [2020-10-15 02:20:48,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11272 to 10917. [2020-10-15 02:20:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10917 states. [2020-10-15 02:20:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10917 states to 10917 states and 15576 transitions. [2020-10-15 02:20:48,838 INFO L78 Accepts]: Start accepts. Automaton has 10917 states and 15576 transitions. Word has length 92 [2020-10-15 02:20:48,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:48,839 INFO L479 AbstractCegarLoop]: Abstraction has 10917 states and 15576 transitions. [2020-10-15 02:20:48,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:20:48,839 INFO L276 IsEmpty]: Start isEmpty. Operand 10917 states and 15576 transitions. [2020-10-15 02:20:48,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-15 02:20:48,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:48,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:20:48,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:20:48,851 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:48,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:48,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1579065917, now seen corresponding path program 1 times [2020-10-15 02:20:48,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:48,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1413900345] [2020-10-15 02:20:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:48,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:48,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:49,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:49,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-15 02:20:53,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:20:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4647 [2020-10-15 02:20:53,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:20:53,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 02:20:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,699 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:20:53,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:20:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:20:53,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:20:53,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:53,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:53,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:20:53,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:20:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:20:53,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:20:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:53,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:20:53,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:53,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:20:53,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:20:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:20:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:20:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-15 02:20:53,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:20:53,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:20:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:20:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 02:20:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-15 02:20:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:53,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:20:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:20:53,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:20:53,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:20:53,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:20:53,920 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1413900345] [2020-10-15 02:20:53,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:20:53,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:20:53,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902459091] [2020-10-15 02:20:53,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:20:53,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:20:53,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:20:53,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:20:53,921 INFO L87 Difference]: Start difference. First operand 10917 states and 15576 transitions. Second operand 9 states. [2020-10-15 02:20:54,099 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:20:54,262 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:20:54,514 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:54,685 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2020-10-15 02:20:55,206 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:20:58,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:20:58,054 INFO L93 Difference]: Finished difference Result 20952 states and 29814 transitions. [2020-10-15 02:20:58,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:20:58,055 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2020-10-15 02:20:58,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:20:58,121 INFO L225 Difference]: With dead ends: 20952 [2020-10-15 02:20:58,121 INFO L226 Difference]: Without dead ends: 10904 [2020-10-15 02:20:58,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:20:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10904 states. [2020-10-15 02:20:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10904 to 8230. [2020-10-15 02:20:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8230 states. [2020-10-15 02:20:58,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8230 states to 8230 states and 11483 transitions. [2020-10-15 02:20:58,742 INFO L78 Accepts]: Start accepts. Automaton has 8230 states and 11483 transitions. Word has length 93 [2020-10-15 02:20:58,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:20:58,742 INFO L479 AbstractCegarLoop]: Abstraction has 8230 states and 11483 transitions. [2020-10-15 02:20:58,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:20:58,743 INFO L276 IsEmpty]: Start isEmpty. Operand 8230 states and 11483 transitions. [2020-10-15 02:20:58,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-15 02:20:58,753 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:20:58,754 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] [2020-10-15 02:20:58,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:20:58,754 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:20:58,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:20:58,754 INFO L82 PathProgramCache]: Analyzing trace with hash -383080089, now seen corresponding path program 1 times [2020-10-15 02:20:58,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:20:58,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28242412] [2020-10-15 02:20:58,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:20:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:20:58,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:20:58,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:02,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:02,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4038 [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-15 02:21:02,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:02,984 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:02,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:02,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:02,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:02,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:02,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:02,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:02,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:02,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:02,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:02,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:02,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:03,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:03,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:21:03,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 02:21:03,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 02:21:03,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:03,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:03,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:21:03,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:21:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:03,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:03,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:03,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:03,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:03,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:03,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:03,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:21:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:03,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:03,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:03,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:21:03,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:03,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:21:03,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:03,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:21:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:03,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:03,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:03,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:03,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:03,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:03,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:03,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:03,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:03,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:03,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-15 02:21:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:03,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:03,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:03,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:03,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:03,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:03,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:03,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:03,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:03,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:03,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:03,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:21:03,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:03,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28242412] [2020-10-15 02:21:03,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:03,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-15 02:21:03,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789031352] [2020-10-15 02:21:03,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-15 02:21:03,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:03,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-15 02:21:03,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-15 02:21:03,258 INFO L87 Difference]: Start difference. First operand 8230 states and 11483 transitions. Second operand 8 states. [2020-10-15 02:21:03,452 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:03,734 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:21:07,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:07,174 INFO L93 Difference]: Finished difference Result 20242 states and 28907 transitions. [2020-10-15 02:21:07,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-15 02:21:07,175 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-10-15 02:21:07,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:07,228 INFO L225 Difference]: With dead ends: 20242 [2020-10-15 02:21:07,228 INFO L226 Difference]: Without dead ends: 14211 [2020-10-15 02:21:07,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:21:07,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14211 states. [2020-10-15 02:21:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14211 to 13708. [2020-10-15 02:21:08,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13708 states. [2020-10-15 02:21:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13708 states to 13708 states and 19107 transitions. [2020-10-15 02:21:08,146 INFO L78 Accepts]: Start accepts. Automaton has 13708 states and 19107 transitions. Word has length 94 [2020-10-15 02:21:08,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:08,146 INFO L479 AbstractCegarLoop]: Abstraction has 13708 states and 19107 transitions. [2020-10-15 02:21:08,147 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-15 02:21:08,147 INFO L276 IsEmpty]: Start isEmpty. Operand 13708 states and 19107 transitions. [2020-10-15 02:21:08,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 02:21:08,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:08,164 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] [2020-10-15 02:21:08,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:21:08,164 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:08,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:08,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1120606557, now seen corresponding path program 1 times [2020-10-15 02:21:08,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:08,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418439711] [2020-10-15 02:21:08,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:08,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:08,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:09,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:21:13,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 02:21:13,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:21:13,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:21:13,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-15 02:21:13,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,368 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:13,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:13,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:13,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:13,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:13,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:21:13,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-15 02:21:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:13,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:21:13,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:13,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:13,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:13,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-15 02:21:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:21:13,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:13,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:13,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:13,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:21:13,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-15 02:21:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:21:13,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:21:13,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 02:21:13,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:21:13,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:21:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:13,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:13,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:13,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:13,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:13,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:13,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:13,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:13,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:13,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418439711] [2020-10-15 02:21:13,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:13,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-15 02:21:13,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713799842] [2020-10-15 02:21:13,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:21:13,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:13,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:21:13,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:21:13,636 INFO L87 Difference]: Start difference. First operand 13708 states and 19107 transitions. Second operand 9 states. [2020-10-15 02:21:13,827 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:14,034 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-15 02:21:14,258 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-15 02:21:15,009 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:18,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:18,274 INFO L93 Difference]: Finished difference Result 20544 states and 28511 transitions. [2020-10-15 02:21:18,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-15 02:21:18,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-10-15 02:21:18,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:18,324 INFO L225 Difference]: With dead ends: 20544 [2020-10-15 02:21:18,325 INFO L226 Difference]: Without dead ends: 16431 [2020-10-15 02:21:18,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-15 02:21:18,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16431 states. [2020-10-15 02:21:19,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16431 to 15903. [2020-10-15 02:21:19,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15903 states. [2020-10-15 02:21:19,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15903 states to 15903 states and 22097 transitions. [2020-10-15 02:21:19,521 INFO L78 Accepts]: Start accepts. Automaton has 15903 states and 22097 transitions. Word has length 95 [2020-10-15 02:21:19,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:19,521 INFO L479 AbstractCegarLoop]: Abstraction has 15903 states and 22097 transitions. [2020-10-15 02:21:19,521 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:21:19,522 INFO L276 IsEmpty]: Start isEmpty. Operand 15903 states and 22097 transitions. [2020-10-15 02:21:19,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-15 02:21:19,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:19,540 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] [2020-10-15 02:21:19,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:21:19,540 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:19,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:19,541 INFO L82 PathProgramCache]: Analyzing trace with hash -573613026, now seen corresponding path program 1 times [2020-10-15 02:21:19,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:19,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747264439] [2020-10-15 02:21:19,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:19,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:19,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:21:21,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 02:21:21,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1563 [2020-10-15 02:21:21,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:21:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-15 02:21:21,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 02:21:21,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,290 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:21:21,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-15 02:21:21,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:21,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:21,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:21:21,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:21:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:21:21,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:21,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:21,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:21:21,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:21:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:21:21,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:21:21,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:21,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:21,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-15 02:21:21,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:21:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:21,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:21:21,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:21:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:21,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:21:21,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:21:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:21,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:21,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:21,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:21,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:21,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:21:21,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:21,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:21,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:21,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-15 02:21:21,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:21:21,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:21,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:21,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747264439] [2020-10-15 02:21:21,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:21,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-15 02:21:21,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054886012] [2020-10-15 02:21:21,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:21:21,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:21,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:21:21,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:21:21,574 INFO L87 Difference]: Start difference. First operand 15903 states and 22097 transitions. Second operand 13 states. [2020-10-15 02:21:21,791 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-15 02:21:22,275 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:21:22,453 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:24,642 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:21:24,832 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2020-10-15 02:21:25,356 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:25,550 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:26,389 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:21:28,383 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-15 02:21:33,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:33,150 INFO L93 Difference]: Finished difference Result 100467 states and 143759 transitions. [2020-10-15 02:21:33,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-15 02:21:33,151 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 95 [2020-10-15 02:21:33,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:35,025 INFO L225 Difference]: With dead ends: 100467 [2020-10-15 02:21:35,026 INFO L226 Difference]: Without dead ends: 87675 [2020-10-15 02:21:35,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=724, Invalid=2816, Unknown=0, NotChecked=0, Total=3540 [2020-10-15 02:21:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87675 states. [2020-10-15 02:21:39,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87675 to 83627. [2020-10-15 02:21:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83627 states. [2020-10-15 02:21:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83627 states to 83627 states and 119075 transitions. [2020-10-15 02:21:39,453 INFO L78 Accepts]: Start accepts. Automaton has 83627 states and 119075 transitions. Word has length 95 [2020-10-15 02:21:39,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:39,454 INFO L479 AbstractCegarLoop]: Abstraction has 83627 states and 119075 transitions. [2020-10-15 02:21:39,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:21:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 83627 states and 119075 transitions. [2020-10-15 02:21:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:21:39,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:39,479 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] [2020-10-15 02:21:39,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:21:39,480 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:39,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:39,480 INFO L82 PathProgramCache]: Analyzing trace with hash -268774071, now seen corresponding path program 1 times [2020-10-15 02:21:39,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:39,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383831822] [2020-10-15 02:21:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:39,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:39,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:44,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:21:44,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:21:44,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-15 02:21:44,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:44,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:21:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-15 02:21:44,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:21:44,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:44,698 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:21:44,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:21:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:44,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:44,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:21:44,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:21:44,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:44,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:44,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:44,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:44,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:21:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:44,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:44,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:21:44,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 02:21:44,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:44,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 02:21:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:44,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:21:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:44,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:21:44,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-15 02:21:44,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:44,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:21:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:44,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:44,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 02:21:44,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:21:44,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:44,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:21:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:21:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 02:21:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-15 02:21:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:44,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:44,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:21:44,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:44,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:21:44,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:44,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 02:21:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:44,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:44,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-15 02:21:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:44,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:44,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:21:44,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:21:44,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:21:44,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:21:44,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:21:44,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:21:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:21:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 02:21:44,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:21:44,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:21:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:21:44,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383831822] [2020-10-15 02:21:44,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:21:44,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:21:44,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237518896] [2020-10-15 02:21:44,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:21:44,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:21:44,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:21:44,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:21:44,924 INFO L87 Difference]: Start difference. First operand 83627 states and 119075 transitions. Second operand 10 states. [2020-10-15 02:21:45,115 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:21:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:21:51,142 INFO L93 Difference]: Finished difference Result 137827 states and 194533 transitions. [2020-10-15 02:21:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-15 02:21:51,143 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-15 02:21:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:21:51,506 INFO L225 Difference]: With dead ends: 137827 [2020-10-15 02:21:51,507 INFO L226 Difference]: Without dead ends: 89588 [2020-10-15 02:21:51,628 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2020-10-15 02:21:51,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89588 states. [2020-10-15 02:21:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89588 to 81308. [2020-10-15 02:21:58,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81308 states. [2020-10-15 02:21:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81308 states to 81308 states and 114574 transitions. [2020-10-15 02:21:58,626 INFO L78 Accepts]: Start accepts. Automaton has 81308 states and 114574 transitions. Word has length 96 [2020-10-15 02:21:58,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:21:58,627 INFO L479 AbstractCegarLoop]: Abstraction has 81308 states and 114574 transitions. [2020-10-15 02:21:58,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:21:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 81308 states and 114574 transitions. [2020-10-15 02:21:58,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:21:58,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:21:58,643 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] [2020-10-15 02:21:58,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:21:58,643 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:21:58,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:21:58,644 INFO L82 PathProgramCache]: Analyzing trace with hash 2094445666, now seen corresponding path program 1 times [2020-10-15 02:21:58,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:21:58,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313478365] [2020-10-15 02:21:58,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:21:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:21:59,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:59,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:21:59,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:00,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:00,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1722 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 02:22:00,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:00,991 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-15 02:22:00,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:22:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:00,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 02:22:01,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:22:01,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:22:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:01,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:22:01,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:01,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 02:22:01,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-15 02:22:01,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-15 02:22:01,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:22:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:01,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 02:22:01,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:01,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-15 02:22:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-15 02:22:01,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:01,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-15 02:22:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 02:22:01,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:01,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:01,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-15 02:22:01,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:01,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-15 02:22:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-15 02:22:01,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:22:01,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:01,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:22:01,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:22:01,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:01,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-15 02:22:01,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:01,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-15 02:22:01,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:22:01,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:22:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:22:01,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [313478365] [2020-10-15 02:22:01,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:22:01,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 02:22:01,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890167637] [2020-10-15 02:22:01,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 02:22:01,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:22:01,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 02:22:01,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-15 02:22:01,231 INFO L87 Difference]: Start difference. First operand 81308 states and 114574 transitions. Second operand 10 states. [2020-10-15 02:22:01,432 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2020-10-15 02:22:01,852 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2020-10-15 02:22:04,248 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-15 02:22:04,427 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-15 02:22:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:22:17,313 INFO L93 Difference]: Finished difference Result 280169 states and 392588 transitions. [2020-10-15 02:22:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:22:17,313 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-15 02:22:17,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:22:17,982 INFO L225 Difference]: With dead ends: 280169 [2020-10-15 02:22:17,982 INFO L226 Difference]: Without dead ends: 202602 [2020-10-15 02:22:18,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2020-10-15 02:22:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202602 states. [2020-10-15 02:22:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202602 to 194270. [2020-10-15 02:22:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194270 states. [2020-10-15 02:22:31,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194270 states to 194270 states and 270717 transitions. [2020-10-15 02:22:31,814 INFO L78 Accepts]: Start accepts. Automaton has 194270 states and 270717 transitions. Word has length 96 [2020-10-15 02:22:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:22:31,814 INFO L479 AbstractCegarLoop]: Abstraction has 194270 states and 270717 transitions. [2020-10-15 02:22:31,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 02:22:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 194270 states and 270717 transitions. [2020-10-15 02:22:31,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 02:22:31,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:22:31,831 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] [2020-10-15 02:22:31,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:22:31,831 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:22:31,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:22:31,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1897779335, now seen corresponding path program 1 times [2020-10-15 02:22:31,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:22:31,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1725023842] [2020-10-15 02:22:31,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:22:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:22:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:31,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:31,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:32,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:32,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:32,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:22:32,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking...