/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:47:40,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:47:40,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:47:40,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:47:40,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:47:40,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:47:40,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:47:40,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:47:40,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:47:40,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:47:40,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:47:40,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:47:40,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:47:40,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:47:40,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:47:40,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:47:40,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:47:40,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:47:40,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:47:40,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:47:40,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:47:40,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:47:40,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:47:40,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:47:40,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:47:40,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:47:40,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:47:40,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:47:40,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:47:40,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:47:40,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:47:40,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:47:40,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:47:40,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:47:40,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:47:40,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:47:40,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:47:40,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:47:40,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:47:40,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:47:40,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:47:40,997 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:47:41,021 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:47:41,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:47:41,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:47:41,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:47:41,023 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:47:41,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:47:41,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:47:41,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:47:41,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:47:41,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:47:41,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:47:41,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:47:41,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:47:41,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:47:41,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:47:41,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:47:41,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:47:41,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:47:41,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:47:41,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:47:41,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:47:41,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:41,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:47:41,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:47:41,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:47:41,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:47:41,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:47:41,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:47:41,028 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:47:41,028 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:47:41,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:47:41,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:47:41,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:47:41,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:47:41,489 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:47:41,490 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-09-25 07:47:41,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/149efdaca/ffd385296cc1491bb1cbbd9f7ea4b004/FLAGccfe75abc [2020-09-25 07:47:42,081 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:47:42,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-09-25 07:47:42,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/149efdaca/ffd385296cc1491bb1cbbd9f7ea4b004/FLAGccfe75abc [2020-09-25 07:47:42,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/149efdaca/ffd385296cc1491bb1cbbd9f7ea4b004 [2020-09-25 07:47:42,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:47:42,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:47:42,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:42,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:47:42,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:47:42,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:42" (1/1) ... [2020-09-25 07:47:42,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5781f29b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:42, skipping insertion in model container [2020-09-25 07:47:42,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:42" (1/1) ... [2020-09-25 07:47:42,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:47:42,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:47:42,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:42,984 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:47:43,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:43,115 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:47:43,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43 WrapperNode [2020-09-25 07:47:43,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:43,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:47:43,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:47:43,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:47:43,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (1/1) ... [2020-09-25 07:47:43,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (1/1) ... [2020-09-25 07:47:43,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (1/1) ... [2020-09-25 07:47:43,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (1/1) ... [2020-09-25 07:47:43,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (1/1) ... [2020-09-25 07:47:43,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (1/1) ... [2020-09-25 07:47:43,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (1/1) ... [2020-09-25 07:47:43,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:47:43,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:47:43,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:47:43,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:47:43,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (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 [2020-09-25 07:47:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:47:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:47:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 07:47:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 07:47:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 07:47:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:47:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 07:47:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 07:47:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 07:47:43,270 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 07:47:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 07:47:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 07:47:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-09-25 07:47:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-09-25 07:47:43,271 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-09-25 07:47:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-09-25 07:47:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-09-25 07:47:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 07:47:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:47:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 07:47:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:47:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 07:47:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 07:47:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 07:47:43,275 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 07:47:43,275 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 07:47:43,275 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 07:47:43,275 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-09-25 07:47:43,275 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-09-25 07:47:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-09-25 07:47:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-09-25 07:47:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-09-25 07:47:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 07:47:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 07:47:43,276 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 07:47:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 07:47:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:47:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 07:47:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:47:43,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:47:43,557 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:43,630 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-25 07:47:43,630 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-25 07:47:43,671 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:43,903 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-09-25 07:47:43,903 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-09-25 07:47:43,905 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:43,962 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 07:47:43,963 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 07:47:43,970 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:44,024 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 07:47:44,024 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 07:47:44,186 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:44,208 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 07:47:44,209 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 07:47:44,256 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:47:44,362 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 07:47:44,363 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 07:47:44,387 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:47:44,387 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 07:47:44,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:44 BoogieIcfgContainer [2020-09-25 07:47:44,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:47:44,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:47:44,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:47:44,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:47:44,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:47:42" (1/3) ... [2020-09-25 07:47:44,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a392e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:44, skipping insertion in model container [2020-09-25 07:47:44,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:43" (2/3) ... [2020-09-25 07:47:44,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a392e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:47:44, skipping insertion in model container [2020-09-25 07:47:44,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:47:44" (3/3) ... [2020-09-25 07:47:44,407 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-09-25 07:47:44,419 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:47:44,431 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:47:44,454 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:47:44,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:47:44,491 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:47:44,492 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:47:44,492 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:47:44,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:47:44,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:47:44,492 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:47:44,492 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:47:44,530 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states. [2020-09-25 07:47:44,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 07:47:44,541 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:44,542 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] [2020-09-25 07:47:44,543 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:44,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:44,551 INFO L82 PathProgramCache]: Analyzing trace with hash 738723625, now seen corresponding path program 1 times [2020-09-25 07:47:44,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:44,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961701078] [2020-09-25 07:47:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:44,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:45,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:45,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:45,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:45,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:45,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:46,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:46,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 07:47:46,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:47:46,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1581 [2020-09-25 07:47:46,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:46,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:46,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 07:47:46,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:47:46,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:47:46,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:46,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:46,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:46,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:47:46,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:46,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:47:46,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:46,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:46,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:46,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:46,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:46,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:47:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:46,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:46,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:46,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:46,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:46,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:47:46,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:46,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:46,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:46,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:46,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 07:47:46,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:46,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:46,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961701078] [2020-09-25 07:47:46,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:46,723 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:47:46,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834457201] [2020-09-25 07:47:46,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:47:46,731 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:46,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:47:46,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:47:46,762 INFO L87 Difference]: Start difference. First operand 667 states. Second operand 5 states. [2020-09-25 07:47:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:48,939 INFO L93 Difference]: Finished difference Result 1037 states and 1248 transitions. [2020-09-25 07:47:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 07:47:48,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-09-25 07:47:48,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:48,965 INFO L225 Difference]: With dead ends: 1037 [2020-09-25 07:47:48,965 INFO L226 Difference]: Without dead ends: 709 [2020-09-25 07:47:48,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:47:48,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-09-25 07:47:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 655. [2020-09-25 07:47:49,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-09-25 07:47:49,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 750 transitions. [2020-09-25 07:47:49,089 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 750 transitions. Word has length 85 [2020-09-25 07:47:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:49,090 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 750 transitions. [2020-09-25 07:47:49,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:47:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 750 transitions. [2020-09-25 07:47:49,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 07:47:49,097 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:49,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:49,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:47:49,098 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:49,099 INFO L82 PathProgramCache]: Analyzing trace with hash -242240865, now seen corresponding path program 1 times [2020-09-25 07:47:49,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:49,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717297840] [2020-09-25 07:47:49,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:49,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:49,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:49,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 07:47:49,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:49,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 494 [2020-09-25 07:47:49,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:49,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:47:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-25 07:47:49,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 07:47:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:49,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:49,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:49,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:49,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:47:49,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:49,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:47:49,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:49,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:49,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:49,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:49,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:49,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:49,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:47:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:49,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:49,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:49,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:47:49,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:49,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:49,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:49,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:47:49,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:49,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:49,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:49,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:49,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:49,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:47:49,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:49,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:49,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:47:49,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:49,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:49,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717297840] [2020-09-25 07:47:49,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:49,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:47:49,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635482054] [2020-09-25 07:47:49,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:47:49,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:49,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:47:49,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:47:49,890 INFO L87 Difference]: Start difference. First operand 655 states and 750 transitions. Second operand 6 states. [2020-09-25 07:47:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:51,844 INFO L93 Difference]: Finished difference Result 976 states and 1131 transitions. [2020-09-25 07:47:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:47:51,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-09-25 07:47:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:51,859 INFO L225 Difference]: With dead ends: 976 [2020-09-25 07:47:51,859 INFO L226 Difference]: Without dead ends: 885 [2020-09-25 07:47:51,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:47:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-09-25 07:47:51,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 806. [2020-09-25 07:47:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2020-09-25 07:47:51,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 917 transitions. [2020-09-25 07:47:51,942 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 917 transitions. Word has length 136 [2020-09-25 07:47:51,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:51,943 INFO L479 AbstractCegarLoop]: Abstraction has 806 states and 917 transitions. [2020-09-25 07:47:51,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:47:51,943 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 917 transitions. [2020-09-25 07:47:51,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 07:47:51,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:51,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:51,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:47:51,958 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:51,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:51,959 INFO L82 PathProgramCache]: Analyzing trace with hash 864276638, now seen corresponding path program 1 times [2020-09-25 07:47:51,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:51,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117394302] [2020-09-25 07:47:51,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:52,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:52,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 07:47:52,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:52,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-25 07:47:52,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:52,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:52,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:47:52,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-25 07:47:52,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 07:47:52,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:47:52,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:52,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:52,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:47:52,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:52,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:47:52,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:52,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:52,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:52,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:52,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:47:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:52,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:52,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:52,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:52,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:47:52,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:52,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:52,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:52,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:52,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:47:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:52,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:52,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:52,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:52,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:47:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:52,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:52,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:47:52,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:52,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:52,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117394302] [2020-09-25 07:47:52,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:52,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:47:52,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519549502] [2020-09-25 07:47:52,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:47:52,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:52,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:47:52,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:47:52,684 INFO L87 Difference]: Start difference. First operand 806 states and 917 transitions. Second operand 6 states. [2020-09-25 07:47:54,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:54,216 INFO L93 Difference]: Finished difference Result 1133 states and 1293 transitions. [2020-09-25 07:47:54,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 07:47:54,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-25 07:47:54,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:54,224 INFO L225 Difference]: With dead ends: 1133 [2020-09-25 07:47:54,224 INFO L226 Difference]: Without dead ends: 907 [2020-09-25 07:47:54,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:47:54,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-09-25 07:47:54,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 881. [2020-09-25 07:47:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-09-25 07:47:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1003 transitions. [2020-09-25 07:47:54,264 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1003 transitions. Word has length 158 [2020-09-25 07:47:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:54,265 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 1003 transitions. [2020-09-25 07:47:54,265 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:47:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1003 transitions. [2020-09-25 07:47:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:47:54,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:54,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:54,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:47:54,268 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:54,268 INFO L82 PathProgramCache]: Analyzing trace with hash 153469469, now seen corresponding path program 1 times [2020-09-25 07:47:54,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:54,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214540182] [2020-09-25 07:47:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:54,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:47:54,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:54,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-25 07:47:54,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:54,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:47:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 07:47:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 07:47:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:54,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:54,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:54,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:47:54,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:54,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:47:54,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:54,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:54,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:54,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:54,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:47:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:54,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:54,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:54,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:54,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:47:54,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:54,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:54,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:54,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:54,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:54,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:47:54,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:47:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:54,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:54,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:54,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:54,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:54,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:47:54,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:54,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:54,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:54,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:54,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:54,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:54,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:47:54,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214540182] [2020-09-25 07:47:54,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:47:54,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:47:54,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011313605] [2020-09-25 07:47:54,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:47:54,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:47:54,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:47:54,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:47:54,892 INFO L87 Difference]: Start difference. First operand 881 states and 1003 transitions. Second operand 6 states. [2020-09-25 07:47:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:47:56,592 INFO L93 Difference]: Finished difference Result 885 states and 1006 transitions. [2020-09-25 07:47:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:47:56,598 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 07:47:56,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:47:56,603 INFO L225 Difference]: With dead ends: 885 [2020-09-25 07:47:56,603 INFO L226 Difference]: Without dead ends: 881 [2020-09-25 07:47:56,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:47:56,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-09-25 07:47:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2020-09-25 07:47:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-09-25 07:47:56,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1000 transitions. [2020-09-25 07:47:56,639 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1000 transitions. Word has length 162 [2020-09-25 07:47:56,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:47:56,640 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1000 transitions. [2020-09-25 07:47:56,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:47:56,640 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1000 transitions. [2020-09-25 07:47:56,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 07:47:56,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:47:56,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:47:56,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:47:56,644 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:47:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:47:56,644 INFO L82 PathProgramCache]: Analyzing trace with hash 198218449, now seen corresponding path program 1 times [2020-09-25 07:47:56,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:47:56,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1304325611] [2020-09-25 07:47:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:47:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:56,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:56,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:57,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:58,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:59,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 07:47:59,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:47:59,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3039 [2020-09-25 07:47:59,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:59,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 07:47:59,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 07:47:59,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:59,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:47:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:59,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:59,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:47:59,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:47:59,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:59,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:59,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:59,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:59,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:47:59,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:59,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:59,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:47:59,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:59,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:47:59,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:59,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:47:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:59,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:47:59,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:47:59,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:47:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:59,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:47:59,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:47:59,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:47:59,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:47:59,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:47:59,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:47:59,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:47:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:47:59,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:47:59,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:47:59,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:47:59,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 07:47:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:47:59,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:00,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 07:48:00,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:00,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 07:48:00,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:00,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:00,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:00,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:00,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 07:48:00,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:00,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:48:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:00,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:00,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 07:48:00,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:00,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:48:00,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:00,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:00,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:00,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:00,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 07:48:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:00,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:00,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:00,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:00,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:00,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:00,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:00,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:00,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:00,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1304325611] [2020-09-25 07:48:00,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:00,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:48:00,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638756705] [2020-09-25 07:48:00,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:48:00,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:00,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:48:00,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:00,232 INFO L87 Difference]: Start difference. First operand 880 states and 1000 transitions. Second operand 8 states. [2020-09-25 07:48:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:01,643 INFO L93 Difference]: Finished difference Result 892 states and 1015 transitions. [2020-09-25 07:48:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:48:01,643 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2020-09-25 07:48:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:01,649 INFO L225 Difference]: With dead ends: 892 [2020-09-25 07:48:01,649 INFO L226 Difference]: Without dead ends: 876 [2020-09-25 07:48:01,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:48:01,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2020-09-25 07:48:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 821. [2020-09-25 07:48:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-09-25 07:48:01,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 936 transitions. [2020-09-25 07:48:01,682 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 936 transitions. Word has length 192 [2020-09-25 07:48:01,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:01,683 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 936 transitions. [2020-09-25 07:48:01,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:48:01,683 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 936 transitions. [2020-09-25 07:48:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:48:01,686 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:01,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:01,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:48:01,687 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:01,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:01,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1857862353, now seen corresponding path program 1 times [2020-09-25 07:48:01,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:01,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089618792] [2020-09-25 07:48:01,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:01,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:02,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 07:48:06,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:48:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 07:48:06,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 07:48:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 07:48:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:48:06,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:06,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:06,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:06,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:48:06,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:06,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:06,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:06,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:06,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:48:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:06,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:06,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:06,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 07:48:06,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:06,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 07:48:06,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:48:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:07,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:07,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:07,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:48:07,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:07,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:07,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:07,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:07,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:48:07,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:07,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 07:48:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:07,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 07:48:07,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:07,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 07:48:07,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:07,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 07:48:07,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:07,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:48:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:07,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 07:48:07,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:07,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:48:07,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:07,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:07,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:07,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 07:48:07,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:07,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 07:48:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:07,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:07,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:48:07,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:07,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:07,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 07:48:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:07,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:07,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089618792] [2020-09-25 07:48:07,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:07,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 07:48:07,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912100502] [2020-09-25 07:48:07,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 07:48:07,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:07,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 07:48:07,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 07:48:07,350 INFO L87 Difference]: Start difference. First operand 821 states and 936 transitions. Second operand 12 states. [2020-09-25 07:48:10,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:10,925 INFO L93 Difference]: Finished difference Result 944 states and 1075 transitions. [2020-09-25 07:48:10,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:48:10,925 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2020-09-25 07:48:10,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:10,930 INFO L225 Difference]: With dead ends: 944 [2020-09-25 07:48:10,930 INFO L226 Difference]: Without dead ends: 937 [2020-09-25 07:48:10,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:48:10,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2020-09-25 07:48:10,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 881. [2020-09-25 07:48:10,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-09-25 07:48:10,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 998 transitions. [2020-09-25 07:48:10,966 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 998 transitions. Word has length 193 [2020-09-25 07:48:10,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:10,967 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 998 transitions. [2020-09-25 07:48:10,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 07:48:10,967 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 998 transitions. [2020-09-25 07:48:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 07:48:10,970 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:10,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:10,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:48:10,971 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:10,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:10,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1657532014, now seen corresponding path program 1 times [2020-09-25 07:48:10,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:10,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [321118711] [2020-09-25 07:48:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:11,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 07:48:14,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:14,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3193 [2020-09-25 07:48:14,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:48:14,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 07:48:14,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 07:48:14,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:14,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:14,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:14,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:14,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:14,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:14,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:48:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:14,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:14,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:48:14,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 07:48:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:14,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:48:14,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:14,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:48:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:14,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:14,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:48:14,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:14,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 07:48:14,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:14,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 07:48:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 07:48:14,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 07:48:14,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 07:48:14,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 07:48:14,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:14,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:48:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 07:48:14,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 07:48:14,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:14,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:48:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:14,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 07:48:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:14,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:14,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:14,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:48:14,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:14,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:14,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:48:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:48:14,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:14,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:14,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [321118711] [2020-09-25 07:48:14,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:14,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 07:48:14,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971945128] [2020-09-25 07:48:14,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:48:14,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:14,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:48:14,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:48:14,875 INFO L87 Difference]: Start difference. First operand 881 states and 998 transitions. Second operand 14 states. [2020-09-25 07:48:17,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:17,764 INFO L93 Difference]: Finished difference Result 931 states and 1049 transitions. [2020-09-25 07:48:17,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:48:17,765 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 194 [2020-09-25 07:48:17,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:17,771 INFO L225 Difference]: With dead ends: 931 [2020-09-25 07:48:17,771 INFO L226 Difference]: Without dead ends: 858 [2020-09-25 07:48:17,772 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2020-09-25 07:48:17,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-09-25 07:48:17,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 823. [2020-09-25 07:48:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-09-25 07:48:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 931 transitions. [2020-09-25 07:48:17,805 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 931 transitions. Word has length 194 [2020-09-25 07:48:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:17,805 INFO L479 AbstractCegarLoop]: Abstraction has 823 states and 931 transitions. [2020-09-25 07:48:17,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:48:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 931 transitions. [2020-09-25 07:48:17,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 07:48:17,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:17,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:17,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:48:17,809 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:17,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:17,809 INFO L82 PathProgramCache]: Analyzing trace with hash -853263794, now seen corresponding path program 1 times [2020-09-25 07:48:17,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:17,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191748894] [2020-09-25 07:48:17,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:17,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 07:48:18,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 814 [2020-09-25 07:48:18,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:48:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 07:48:18,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:48:18,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:18,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:18,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:48:18,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:18,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:18,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:18,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:48:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:18,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:48:18,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:18,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:18,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:48:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:18,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:18,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:18,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:18,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:18,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:18,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:18,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:18,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:18,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 07:48:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:18,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:48:19,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 07:48:19,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:48:19,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 07:48:19,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:19,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:48:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:48:19,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 07:48:19,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:48:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 07:48:19,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 07:48:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:19,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:19,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:19,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:19,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:19,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:48:19,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:19,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:19,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:48:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:19,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191748894] [2020-09-25 07:48:19,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:19,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 07:48:19,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616796764] [2020-09-25 07:48:19,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 07:48:19,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:19,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 07:48:19,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:48:19,414 INFO L87 Difference]: Start difference. First operand 823 states and 931 transitions. Second operand 17 states. [2020-09-25 07:48:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:23,536 INFO L93 Difference]: Finished difference Result 845 states and 955 transitions. [2020-09-25 07:48:23,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 07:48:23,537 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 190 [2020-09-25 07:48:23,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:23,541 INFO L225 Difference]: With dead ends: 845 [2020-09-25 07:48:23,541 INFO L226 Difference]: Without dead ends: 828 [2020-09-25 07:48:23,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-09-25 07:48:23,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-09-25 07:48:23,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 819. [2020-09-25 07:48:23,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-09-25 07:48:23,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 925 transitions. [2020-09-25 07:48:23,571 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 925 transitions. Word has length 190 [2020-09-25 07:48:23,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:23,572 INFO L479 AbstractCegarLoop]: Abstraction has 819 states and 925 transitions. [2020-09-25 07:48:23,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 07:48:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 925 transitions. [2020-09-25 07:48:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 07:48:23,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:23,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:23,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:48:23,576 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:23,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:23,576 INFO L82 PathProgramCache]: Analyzing trace with hash -443732248, now seen corresponding path program 1 times [2020-09-25 07:48:23,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:23,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664003129] [2020-09-25 07:48:23,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:23,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 07:48:24,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:24,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-09-25 07:48:24,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:48:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 07:48:24,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:48:24,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:24,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:24,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:24,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:24,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:24,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:24,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:48:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:24,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:24,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:48:24,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:24,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:24,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:24,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:48:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:24,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:24,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:24,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:24,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:24,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:24,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 07:48:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:24,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 07:48:24,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:24,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 07:48:24,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:48:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:48:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:24,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-25 07:48:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:24,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:24,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:24,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 07:48:24,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:24,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 07:48:24,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:24,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 07:48:24,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:24,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664003129] [2020-09-25 07:48:24,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:24,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 07:48:24,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83095634] [2020-09-25 07:48:24,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 07:48:24,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:24,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 07:48:24,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:48:24,671 INFO L87 Difference]: Start difference. First operand 819 states and 925 transitions. Second operand 13 states. [2020-09-25 07:48:28,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:28,139 INFO L93 Difference]: Finished difference Result 841 states and 949 transitions. [2020-09-25 07:48:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:48:28,139 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-09-25 07:48:28,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:28,142 INFO L225 Difference]: With dead ends: 841 [2020-09-25 07:48:28,143 INFO L226 Difference]: Without dead ends: 744 [2020-09-25 07:48:28,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:48:28,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2020-09-25 07:48:28,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 735. [2020-09-25 07:48:28,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 07:48:28,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 831 transitions. [2020-09-25 07:48:28,169 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 831 transitions. Word has length 193 [2020-09-25 07:48:28,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:28,170 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 831 transitions. [2020-09-25 07:48:28,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 07:48:28,170 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 831 transitions. [2020-09-25 07:48:28,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 07:48:28,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:28,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:28,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:48:28,173 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:28,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:28,174 INFO L82 PathProgramCache]: Analyzing trace with hash -132300136, now seen corresponding path program 1 times [2020-09-25 07:48:28,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:28,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15747985] [2020-09-25 07:48:28,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:28,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:28,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:28,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 07:48:28,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:28,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 753 [2020-09-25 07:48:28,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:28,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:28,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 07:48:28,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 07:48:28,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:48:28,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:29,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:29,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:29,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:29,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:48:29,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:29,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:29,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:29,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:29,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:29,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:29,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:29,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 07:48:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:29,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:29,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 07:48:29,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:29,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:48:29,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:29,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:29,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:29,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:29,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:29,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 07:48:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:29,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:29,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:29,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:48:29,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:29,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:29,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:29,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:29,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:29,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 07:48:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:29,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:29,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:29,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 07:48:29,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:29,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195 [2020-09-25 07:48:29,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:29,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:29,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 07:48:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:29,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 07:48:29,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 07:48:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:29,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:29,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:29,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 07:48:29,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:29,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 07:48:29,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:29,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:48:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:29,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 07:48:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:29,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 07:48:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:29,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:29,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:29,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 07:48:29,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:29,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 07:48:29,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:29,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:48:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:29,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 07:48:29,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:48:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:29,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15747985] [2020-09-25 07:48:29,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:29,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 07:48:29,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928142539] [2020-09-25 07:48:29,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 07:48:29,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:29,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 07:48:29,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-25 07:48:29,719 INFO L87 Difference]: Start difference. First operand 735 states and 831 transitions. Second operand 17 states.