/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=0.2 --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-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:21:30,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:30,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:30,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:30,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:30,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:30,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:30,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:30,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:30,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:30,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:30,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:30,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:30,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:30,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:30,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:30,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:30,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:30,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:30,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:30,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:30,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:30,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:30,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:30,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:30,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:30,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:30,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:30,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:30,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:30,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:30,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:30,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:31,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:31,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:31,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:31,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:31,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:31,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:31,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:31,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:31,006 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 04:21:31,061 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:31,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:31,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:31,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:31,064 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:31,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:31,065 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:31,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:31,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:31,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:31,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:31,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:31,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:31,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:31,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:31,068 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:31,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:31,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:31,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:31,069 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:31,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:31,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:31,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:31,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:31,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:31,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:31,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:31,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:31,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:31,071 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:21:31,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:31,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:31,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:31,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:31,590 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:31,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-25 04:21:31,674 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92f305bf4/aeaeed03783e4549893f4d8383ef711f/FLAGe85c20e16 [2020-09-25 04:21:32,329 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:21:32,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-25 04:21:32,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92f305bf4/aeaeed03783e4549893f4d8383ef711f/FLAGe85c20e16 [2020-09-25 04:21:32,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/92f305bf4/aeaeed03783e4549893f4d8383ef711f [2020-09-25 04:21:32,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:21:32,587 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:21:32,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:32,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:21:32,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:21:32,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224796be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:32, skipping insertion in model container [2020-09-25 04:21:32,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:32" (1/1) ... [2020-09-25 04:21:32,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:21:32,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:21:33,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:33,050 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:21:33,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:33,236 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:21:33,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33 WrapperNode [2020-09-25 04:21:33,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:33,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:21:33,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:21:33,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:21:33,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (1/1) ... [2020-09-25 04:21:33,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (1/1) ... [2020-09-25 04:21:33,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (1/1) ... [2020-09-25 04:21:33,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (1/1) ... [2020-09-25 04:21:33,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (1/1) ... [2020-09-25 04:21:33,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (1/1) ... [2020-09-25 04:21:33,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (1/1) ... [2020-09-25 04:21:33,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:21:33,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:21:33,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:21:33,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:21:33,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (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 04:21:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:21:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:21:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 04:21:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 04:21:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 04:21:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:21:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 04:21:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 04:21:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 04:21:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 04:21:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 04:21:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 04:21:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-09-25 04:21:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-09-25 04:21:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-09-25 04:21:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-09-25 04:21:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-09-25 04:21:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 04:21:33,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:21:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:21:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:21:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 04:21:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-09-25 04:21:33,398 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 04:21:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 04:21:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 04:21:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 04:21:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 04:21:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-09-25 04:21:33,399 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-09-25 04:21:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-09-25 04:21:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-09-25 04:21:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 04:21:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 04:21:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 04:21:33,400 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 04:21:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:21:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 04:21:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:21:33,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:21:33,679 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:33,772 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-25 04:21:33,772 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-25 04:21:33,819 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:33,983 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-09-25 04:21:33,983 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-09-25 04:21:33,985 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:34,042 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 04:21:34,043 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 04:21:34,063 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:34,141 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 04:21:34,142 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 04:21:34,409 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:34,435 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 04:21:34,436 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 04:21:34,493 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:34,611 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 04:21:34,612 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 04:21:34,637 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:21:34,638 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:21:34,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:34 BoogieIcfgContainer [2020-09-25 04:21:34,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:21:34,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:21:34,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:21:34,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:21:34,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:21:32" (1/3) ... [2020-09-25 04:21:34,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8ed05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:34, skipping insertion in model container [2020-09-25 04:21:34,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:33" (2/3) ... [2020-09-25 04:21:34,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8ed05d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:34, skipping insertion in model container [2020-09-25 04:21:34,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:34" (3/3) ... [2020-09-25 04:21:34,663 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2020-09-25 04:21:34,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:21:34,690 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:21:34,716 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:21:34,755 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:21:34,755 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:21:34,755 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:21:34,755 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:21:34,755 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:21:34,756 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:21:34,756 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:21:34,756 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:21:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states. [2020-09-25 04:21:34,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 04:21:34,805 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:34,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:34,807 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:34,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:34,815 INFO L82 PathProgramCache]: Analyzing trace with hash 337662663, now seen corresponding path program 1 times [2020-09-25 04:21:34,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:34,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331748203] [2020-09-25 04:21:34,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:35,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:35,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:36,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:36,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 04:21:36,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:21:36,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1523 [2020-09-25 04:21:36,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:36,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 04:21:36,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 04:21:36,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:21:36,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:36,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:36,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:36,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:36,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:36,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:21:36,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:36,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:36,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:36,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:21:36,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:36,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:36,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:36,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:36,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:36,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 04:21:36,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:36,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:36,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:36,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 04:21:36,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:37,026 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 04:21:37,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331748203] [2020-09-25 04:21:37,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:37,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:21:37,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709081069] [2020-09-25 04:21:37,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:21:37,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:37,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:21:37,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:21:37,087 INFO L87 Difference]: Start difference. First operand 666 states. Second operand 5 states. [2020-09-25 04:21:39,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:39,530 INFO L93 Difference]: Finished difference Result 1035 states and 1244 transitions. [2020-09-25 04:21:39,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:21:39,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-09-25 04:21:39,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:39,557 INFO L225 Difference]: With dead ends: 1035 [2020-09-25 04:21:39,557 INFO L226 Difference]: Without dead ends: 706 [2020-09-25 04:21:39,567 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 04:21:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-25 04:21:39,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 652. [2020-09-25 04:21:39,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-09-25 04:21:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 746 transitions. [2020-09-25 04:21:39,681 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 746 transitions. Word has length 85 [2020-09-25 04:21:39,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:39,682 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 746 transitions. [2020-09-25 04:21:39,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:21:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 746 transitions. [2020-09-25 04:21:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 04:21:39,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:39,690 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 04:21:39,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:21:39,691 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:39,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1711200696, now seen corresponding path program 1 times [2020-09-25 04:21:39,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:39,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95611269] [2020-09-25 04:21:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:39,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 04:21:40,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 503 [2020-09-25 04:21:40,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:21:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-25 04:21:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 04:21:40,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:40,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:40,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:40,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:21:40,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:40,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:40,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:40,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:21:40,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:21:40,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:21:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:40,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:40,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:40,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:40,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:40,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:21:40,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:40,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:40,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:21:40,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:40,626 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 04:21:40,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95611269] [2020-09-25 04:21:40,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:40,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:40,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652166848] [2020-09-25 04:21:40,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:40,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:40,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:40,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:40,634 INFO L87 Difference]: Start difference. First operand 652 states and 746 transitions. Second operand 6 states. [2020-09-25 04:21:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:42,816 INFO L93 Difference]: Finished difference Result 967 states and 1119 transitions. [2020-09-25 04:21:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:21:42,817 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-09-25 04:21:42,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:42,824 INFO L225 Difference]: With dead ends: 967 [2020-09-25 04:21:42,825 INFO L226 Difference]: Without dead ends: 879 [2020-09-25 04:21:42,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-09-25 04:21:42,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 803. [2020-09-25 04:21:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-09-25 04:21:42,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 913 transitions. [2020-09-25 04:21:42,909 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 913 transitions. Word has length 136 [2020-09-25 04:21:42,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:42,911 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 913 transitions. [2020-09-25 04:21:42,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:42,912 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 913 transitions. [2020-09-25 04:21:42,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 04:21:42,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:42,931 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 04:21:42,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:21:42,932 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:42,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:42,932 INFO L82 PathProgramCache]: Analyzing trace with hash -472111805, now seen corresponding path program 1 times [2020-09-25 04:21:42,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:42,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390433354] [2020-09-25 04:21:42,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:21:43,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 04:21:43,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:43,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-25 04:21:43,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:21:43,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:21:43,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:43,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:43,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:43,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:43,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:43,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:21:43,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:43,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:43,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:43,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:43,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:21:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:43,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:43,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:43,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:43,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:43,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:43,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 04:21:43,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:43,661 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 04:21:43,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390433354] [2020-09-25 04:21:43,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:43,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:43,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128419035] [2020-09-25 04:21:43,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:43,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:43,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:43,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:43,664 INFO L87 Difference]: Start difference. First operand 803 states and 913 transitions. Second operand 6 states. [2020-09-25 04:21:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:45,225 INFO L93 Difference]: Finished difference Result 1124 states and 1281 transitions. [2020-09-25 04:21:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:21:45,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-25 04:21:45,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:45,234 INFO L225 Difference]: With dead ends: 1124 [2020-09-25 04:21:45,234 INFO L226 Difference]: Without dead ends: 901 [2020-09-25 04:21:45,236 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 04:21:45,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-09-25 04:21:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 878. [2020-09-25 04:21:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-25 04:21:45,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 999 transitions. [2020-09-25 04:21:45,276 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 999 transitions. Word has length 158 [2020-09-25 04:21:45,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:45,277 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 999 transitions. [2020-09-25 04:21:45,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:45,277 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 999 transitions. [2020-09-25 04:21:45,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 04:21:45,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:45,280 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 04:21:45,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:21:45,280 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:45,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:45,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1225477396, now seen corresponding path program 1 times [2020-09-25 04:21:45,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:45,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1708774162] [2020-09-25 04:21:45,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:45,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 04:21:45,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:45,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 336 [2020-09-25 04:21:45,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:45,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 04:21:45,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:21:45,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:45,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:45,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:45,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:21:45,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:45,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:45,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:45,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:45,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:45,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 37 [2020-09-25 04:21:45,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:45,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:45,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:45,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:21:45,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:45,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:21:45,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:21:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:45,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:45,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:45,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:45,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:45,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:45,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:45,939 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 04:21:45,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1708774162] [2020-09-25 04:21:45,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:45,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:45,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113988376] [2020-09-25 04:21:45,942 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:45,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:45,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:45,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:45,944 INFO L87 Difference]: Start difference. First operand 878 states and 999 transitions. Second operand 6 states. [2020-09-25 04:21:47,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:47,828 INFO L93 Difference]: Finished difference Result 882 states and 1002 transitions. [2020-09-25 04:21:47,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:21:47,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 04:21:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:47,834 INFO L225 Difference]: With dead ends: 882 [2020-09-25 04:21:47,834 INFO L226 Difference]: Without dead ends: 878 [2020-09-25 04:21:47,835 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 04:21:47,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-09-25 04:21:47,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 877. [2020-09-25 04:21:47,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-09-25 04:21:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 996 transitions. [2020-09-25 04:21:47,868 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 996 transitions. Word has length 162 [2020-09-25 04:21:47,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:47,869 INFO L479 AbstractCegarLoop]: Abstraction has 877 states and 996 transitions. [2020-09-25 04:21:47,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:47,869 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 996 transitions. [2020-09-25 04:21:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 04:21:47,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:47,873 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] [2020-09-25 04:21:47,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:21:47,874 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:47,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:47,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1858696707, now seen corresponding path program 1 times [2020-09-25 04:21:47,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:47,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28491835] [2020-09-25 04:21:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:47,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:48,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 04:21:51,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:21:51,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3148 [2020-09-25 04:21:51,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 04:21:51,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 04:21:51,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:51,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:21:51,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:51,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:51,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:51,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:21:51,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:51,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:21:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:21:51,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:21:51,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 04:21:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:21:51,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 04:21:51,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 04:21:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:51,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 04:21:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 04:21:51,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 04:21:51,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:51,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:51,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 04:21:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:51,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:51,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,475 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 04:21:51,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28491835] [2020-09-25 04:21:51,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:51,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:21:51,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410007151] [2020-09-25 04:21:51,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:21:51,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:51,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:21:51,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:51,477 INFO L87 Difference]: Start difference. First operand 877 states and 996 transitions. Second operand 8 states. [2020-09-25 04:21:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:53,108 INFO L93 Difference]: Finished difference Result 886 states and 1007 transitions. [2020-09-25 04:21:53,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:21:53,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-09-25 04:21:53,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:53,112 INFO L225 Difference]: With dead ends: 886 [2020-09-25 04:21:53,113 INFO L226 Difference]: Without dead ends: 364 [2020-09-25 04:21:53,115 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 04:21:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-09-25 04:21:53,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 307. [2020-09-25 04:21:53,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-25 04:21:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 324 transitions. [2020-09-25 04:21:53,129 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 324 transitions. Word has length 187 [2020-09-25 04:21:53,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:53,129 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 324 transitions. [2020-09-25 04:21:53,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:21:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 324 transitions. [2020-09-25 04:21:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-25 04:21:53,132 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:53,132 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, 1, 1] [2020-09-25 04:21:53,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:21:53,133 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:53,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:53,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1820316512, now seen corresponding path program 1 times [2020-09-25 04:21:53,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:53,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332356785] [2020-09-25 04:21:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:53,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:53,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 04:21:54,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:54,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 873 [2020-09-25 04:21:54,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 04:21:54,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:21:54,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:54,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:54,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:54,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:54,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:54,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:54,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:54,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:54,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:21:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:54,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:54,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:54,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:21:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:54,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:21:54,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 04:21:54,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:21:54,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:54,370 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 04:21:54,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332356785] [2020-09-25 04:21:54,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:54,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:21:54,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126638768] [2020-09-25 04:21:54,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:21:54,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:54,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:21:54,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:54,374 INFO L87 Difference]: Start difference. First operand 307 states and 324 transitions. Second operand 8 states. [2020-09-25 04:21:55,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:55,335 INFO L93 Difference]: Finished difference Result 368 states and 392 transitions. [2020-09-25 04:21:55,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 04:21:55,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 197 [2020-09-25 04:21:55,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:55,339 INFO L225 Difference]: With dead ends: 368 [2020-09-25 04:21:55,339 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 04:21:55,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:21:55,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 04:21:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2020-09-25 04:21:55,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-25 04:21:55,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 323 transitions. [2020-09-25 04:21:55,352 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 323 transitions. Word has length 197 [2020-09-25 04:21:55,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:55,353 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 323 transitions. [2020-09-25 04:21:55,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:21:55,353 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 323 transitions. [2020-09-25 04:21:55,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 04:21:55,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:55,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:55,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:21:55,356 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:55,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:55,357 INFO L82 PathProgramCache]: Analyzing trace with hash 667967814, now seen corresponding path program 1 times [2020-09-25 04:21:55,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:55,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071598881] [2020-09-25 04:21:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 04:21:55,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-25 04:21:55,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-25 04:21:55,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:21:55,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:55,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:21:55,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:55,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:21:55,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:55,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:21:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:55,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:55,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-25 04:21:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:21:55,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:21:55,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:21:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:21:55,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:55,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:55,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:55,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 04:21:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:55,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:21:55,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:55,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:55,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:21:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:21:56,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071598881] [2020-09-25 04:21:56,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:56,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:21:56,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448670607] [2020-09-25 04:21:56,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:21:56,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:56,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:21:56,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:56,014 INFO L87 Difference]: Start difference. First operand 307 states and 323 transitions. Second operand 8 states. [2020-09-25 04:21:56,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:56,488 INFO L93 Difference]: Finished difference Result 353 states and 374 transitions. [2020-09-25 04:21:56,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:21:56,489 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-09-25 04:21:56,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:56,492 INFO L225 Difference]: With dead ends: 353 [2020-09-25 04:21:56,492 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 04:21:56,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:21:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 04:21:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 303. [2020-09-25 04:21:56,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-09-25 04:21:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 317 transitions. [2020-09-25 04:21:56,515 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 317 transitions. Word has length 213 [2020-09-25 04:21:56,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:56,515 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 317 transitions. [2020-09-25 04:21:56,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:21:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 317 transitions. [2020-09-25 04:21:56,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 04:21:56,522 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:56,522 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, 1, 1, 1, 1, 1, 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 04:21:56,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:21:56,523 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:56,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1190108144, now seen corresponding path program 1 times [2020-09-25 04:21:56,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:56,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [736553508] [2020-09-25 04:21:56,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:59,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 04:21:59,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:59,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2682 [2020-09-25 04:21:59,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:59,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:59,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-09-25 04:21:59,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 04:21:59,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:59,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:59,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:59,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:21:59,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:59,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:21:59,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:59,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:59,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:59,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:59,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:21:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:59,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:59,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:21:59,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:59,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:21:59,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:59,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:59,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:59,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:59,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:59,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:59,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:21:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:59,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:59,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:21:59,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:59,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:21:59,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:59,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:59,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:21:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:59,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:59,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 04:21:59,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 04:21:59,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:59,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:21:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 04:21:59,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:59,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:21:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:59,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:59,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:21:59,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:59,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 04:21:59,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:59,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:59,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:59,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:59,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:21:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:59,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:59,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:21:59,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:59,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:21:59,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:59,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:59,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:59,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:59,935 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 04:21:59,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [736553508] [2020-09-25 04:21:59,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:59,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:21:59,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606442882] [2020-09-25 04:21:59,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:21:59,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:59,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:21:59,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:21:59,939 INFO L87 Difference]: Start difference. First operand 303 states and 317 transitions. Second operand 11 states. [2020-09-25 04:22:00,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:00,697 INFO L93 Difference]: Finished difference Result 387 states and 412 transitions. [2020-09-25 04:22:00,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:22:00,697 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2020-09-25 04:22:00,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:00,699 INFO L225 Difference]: With dead ends: 387 [2020-09-25 04:22:00,699 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 04:22:00,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:22:00,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 04:22:00,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 321. [2020-09-25 04:22:00,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 04:22:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 338 transitions. [2020-09-25 04:22:00,720 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 338 transitions. Word has length 224 [2020-09-25 04:22:00,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:00,721 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 338 transitions. [2020-09-25 04:22:00,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:22:00,721 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 338 transitions. [2020-09-25 04:22:00,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 04:22:00,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:00,725 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, 1, 1, 1, 1, 1, 1, 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 04:22:00,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:22:00,725 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:00,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:00,725 INFO L82 PathProgramCache]: Analyzing trace with hash 149463484, now seen corresponding path program 1 times [2020-09-25 04:22:00,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:00,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1733924173] [2020-09-25 04:22:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 04:22:05,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:05,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 04:22:05,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:05,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-09-25 04:22:05,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:22:05,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:05,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:05,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:22:05,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:05,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:22:05,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:05,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:05,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:05,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:22:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:05,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:05,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:05,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 04:22:05,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:05,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:05,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:05,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:22:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:05,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:05,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:05,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:05,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:05,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:05,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:05,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:05,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:22:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:05,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 04:22:06,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:06,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 04:22:06,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:06,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:06,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:22:06,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:06,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:06,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:06,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:06,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:22:06,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:06,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:06,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:06,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:06,227 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 04:22:06,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1733924173] [2020-09-25 04:22:06,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:06,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:22:06,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970782643] [2020-09-25 04:22:06,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:22:06,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:06,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:22:06,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:22:06,238 INFO L87 Difference]: Start difference. First operand 321 states and 338 transitions. Second operand 8 states. [2020-09-25 04:22:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:06,784 INFO L93 Difference]: Finished difference Result 344 states and 362 transitions. [2020-09-25 04:22:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:22:06,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-09-25 04:22:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:06,786 INFO L225 Difference]: With dead ends: 344 [2020-09-25 04:22:06,786 INFO L226 Difference]: Without dead ends: 339 [2020-09-25 04:22:06,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:22:06,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-25 04:22:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 323. [2020-09-25 04:22:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 04:22:06,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 339 transitions. [2020-09-25 04:22:06,803 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 339 transitions. Word has length 225 [2020-09-25 04:22:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:06,803 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 339 transitions. [2020-09-25 04:22:06,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:22:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 339 transitions. [2020-09-25 04:22:06,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 04:22:06,806 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:06,807 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, 1, 1, 1, 1, 1, 1, 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 04:22:06,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:22:06,808 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:06,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1227578766, now seen corresponding path program 1 times [2020-09-25 04:22:06,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:06,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357172247] [2020-09-25 04:22:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:08,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 04:22:08,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:08,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2005 [2020-09-25 04:22:08,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:08,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-25 04:22:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 04:22:08,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:08,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:08,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:08,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:22:08,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:08,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:08,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:08,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:08,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:08,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:08,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:22:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:08,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:22:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:09,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:09,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:22:09,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:22:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:09,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 04:22:09,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:09,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:22:09,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:09,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:09,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:09,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:09,316 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 04:22:09,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357172247] [2020-09-25 04:22:09,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:09,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:22:09,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428972675] [2020-09-25 04:22:09,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:22:09,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:09,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:22:09,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:22:09,319 INFO L87 Difference]: Start difference. First operand 323 states and 339 transitions. Second operand 8 states. [2020-09-25 04:22:09,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:09,863 INFO L93 Difference]: Finished difference Result 560 states and 590 transitions. [2020-09-25 04:22:09,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:22:09,864 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-09-25 04:22:09,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:09,867 INFO L225 Difference]: With dead ends: 560 [2020-09-25 04:22:09,867 INFO L226 Difference]: Without dead ends: 550 [2020-09-25 04:22:09,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:22:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-09-25 04:22:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 530. [2020-09-25 04:22:09,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-09-25 04:22:09,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 561 transitions. [2020-09-25 04:22:09,906 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 561 transitions. Word has length 225 [2020-09-25 04:22:09,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:09,907 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 561 transitions. [2020-09-25 04:22:09,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:22:09,908 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 561 transitions. [2020-09-25 04:22:09,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 04:22:09,912 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:09,913 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, 1, 1, 1, 1, 1, 1, 1, 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 04:22:09,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:22:09,913 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:09,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:09,914 INFO L82 PathProgramCache]: Analyzing trace with hash 41536610, now seen corresponding path program 1 times [2020-09-25 04:22:09,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:09,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2114137064] [2020-09-25 04:22:09,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:10,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 04:22:14,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:14,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 04:22:14,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-25 04:22:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 04:22:14,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:22:15,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:15,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:15,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:22:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:15,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:15,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 04:22:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:15,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:15,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:15,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:15,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:22:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 04:22:15,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:15,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 04:22:15,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:22:15,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:15,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:22:15,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:22:15,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:15,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:15,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:15,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:15,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:15,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:15,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:15,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:15,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:15,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:15,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:15,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 04:22:15,445 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 04:22:15,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2114137064] [2020-09-25 04:22:15,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:15,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 04:22:15,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265281136] [2020-09-25 04:22:15,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 04:22:15,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:15,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 04:22:15,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:22:15,448 INFO L87 Difference]: Start difference. First operand 530 states and 561 transitions. Second operand 8 states. [2020-09-25 04:22:15,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:15,969 INFO L93 Difference]: Finished difference Result 575 states and 612 transitions. [2020-09-25 04:22:15,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:22:15,969 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2020-09-25 04:22:15,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:15,974 INFO L225 Difference]: With dead ends: 575 [2020-09-25 04:22:15,976 INFO L226 Difference]: Without dead ends: 494 [2020-09-25 04:22:15,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:22:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-25 04:22:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 490. [2020-09-25 04:22:16,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-09-25 04:22:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 513 transitions. [2020-09-25 04:22:16,003 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 513 transitions. Word has length 226 [2020-09-25 04:22:16,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:16,003 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 513 transitions. [2020-09-25 04:22:16,003 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 04:22:16,003 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 513 transitions. [2020-09-25 04:22:16,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 04:22:16,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:16,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:16,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:22:16,006 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:16,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:16,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1031480085, now seen corresponding path program 1 times [2020-09-25 04:22:16,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:16,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112439770] [2020-09-25 04:22:16,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 04:22:16,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-25 04:22:16,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-25 04:22:16,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:16,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:22:16,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:22:16,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:22:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:16,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 04:22:16,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:22:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:16,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:16,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:22:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 04:22:16,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 04:22:16,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:16,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 04:22:16,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:16,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:16,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:22:16,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:22:16,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:22:16,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:16,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:16,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:16,926 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 04:22:16,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112439770] [2020-09-25 04:22:16,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 04:22:16,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582736847] [2020-09-25 04:22:16,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:22:16,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:22:16,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:22:16,929 INFO L87 Difference]: Start difference. First operand 490 states and 513 transitions. Second operand 11 states. [2020-09-25 04:22:17,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:17,907 INFO L93 Difference]: Finished difference Result 599 states and 632 transitions. [2020-09-25 04:22:17,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:22:17,914 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 227 [2020-09-25 04:22:17,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:17,917 INFO L225 Difference]: With dead ends: 599 [2020-09-25 04:22:17,917 INFO L226 Difference]: Without dead ends: 464 [2020-09-25 04:22:17,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:22:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-09-25 04:22:17,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-09-25 04:22:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-09-25 04:22:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 481 transitions. [2020-09-25 04:22:17,942 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 481 transitions. Word has length 227 [2020-09-25 04:22:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:17,942 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 481 transitions. [2020-09-25 04:22:17,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:22:17,943 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 481 transitions. [2020-09-25 04:22:17,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 04:22:17,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:17,946 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:22:17,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:22:17,946 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:17,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:17,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1776023437, now seen corresponding path program 1 times [2020-09-25 04:22:17,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:17,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384913615] [2020-09-25 04:22:17,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 04:22:18,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-25 04:22:18,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 04:22:18,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-25 04:22:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:18,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:22:18,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:22:18,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:18,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:18,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:18,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:18,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 04:22:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 04:22:18,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 04:22:18,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:22:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:18,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:22:18,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:18,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 04:22:18,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:22:18,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 04:22:18,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 04:22:18,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:18,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 04:22:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:22:18,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 04:22:18,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:22:18,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 04:22:18,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:22:18,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:18,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 04:22:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:22:18,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:22:18,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:18,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:18,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:18,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 04:22:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 04:22:18,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:22:18,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:18,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:18,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:18,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:18,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 04:22:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:18,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:18,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:22:18,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:18,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:18,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:18,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:22:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:18,911 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 04:22:18,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384913615] [2020-09-25 04:22:18,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:18,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 04:22:18,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507276715] [2020-09-25 04:22:18,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 04:22:18,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:18,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 04:22:18,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:22:18,914 INFO L87 Difference]: Start difference. First operand 464 states and 481 transitions. Second operand 13 states.