/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=0.6 --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 06:38:41,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:38:41,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:38:41,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:38:41,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:38:41,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:38:41,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:38:41,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:38:41,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:38:41,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:38:41,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:38:41,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:38:41,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:38:41,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:38:41,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:38:41,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:38:41,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:38:41,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:38:41,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:38:41,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:38:41,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:38:41,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:38:41,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:38:41,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:38:41,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:38:41,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:38:41,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:38:41,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:38:41,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:38:41,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:38:41,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:38:41,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:38:41,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:38:41,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:38:41,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:38:41,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:38:41,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:38:41,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:38:41,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:38:41,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:38:41,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:38:41,970 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 06:38:41,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:38:41,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:38:41,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:38:41,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:38:41,997 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:38:41,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:38:41,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:38:41,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:38:41,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:38:41,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:38:41,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:38:41,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:38:41,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:38:41,999 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:38:41,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:38:41,999 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:38:41,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:38:42,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:38:42,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:38:42,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:38:42,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:38:42,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:38:42,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:38:42,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:38:42,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:38:42,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:38:42,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:38:42,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:38:42,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:38:42,002 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:38:42,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:38:42,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:38:42,473 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:38:42,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:38:42,477 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:38:42,478 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-25 06:38:42,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d144b0061/ee30b324303944abbc881e3f23fda5c4/FLAG22b125403 [2020-09-25 06:38:43,145 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:38:43,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-25 06:38:43,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d144b0061/ee30b324303944abbc881e3f23fda5c4/FLAG22b125403 [2020-09-25 06:38:43,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d144b0061/ee30b324303944abbc881e3f23fda5c4 [2020-09-25 06:38:43,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:38:43,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:38:43,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:43,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:38:43,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:38:43,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:43" (1/1) ... [2020-09-25 06:38:43,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440c5c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:43, skipping insertion in model container [2020-09-25 06:38:43,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:43" (1/1) ... [2020-09-25 06:38:43,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:38:43,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:38:43,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:43,897 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:38:44,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:44,119 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:38:44,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44 WrapperNode [2020-09-25 06:38:44,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:44,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:38:44,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:38:44,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:38:44,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (1/1) ... [2020-09-25 06:38:44,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (1/1) ... [2020-09-25 06:38:44,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (1/1) ... [2020-09-25 06:38:44,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (1/1) ... [2020-09-25 06:38:44,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (1/1) ... [2020-09-25 06:38:44,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (1/1) ... [2020-09-25 06:38:44,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (1/1) ... [2020-09-25 06:38:44,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:38:44,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:38:44,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:38:44,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:38:44,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (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 06:38:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:38:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:38:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 06:38:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 06:38:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 06:38:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:38:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 06:38:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 06:38:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 06:38:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 06:38:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 06:38:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 06:38:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-09-25 06:38:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-09-25 06:38:44,277 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-09-25 06:38:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-09-25 06:38:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-09-25 06:38:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 06:38:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:38:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 06:38:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:38:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 06:38:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-09-25 06:38:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 06:38:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 06:38:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 06:38:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 06:38:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 06:38:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-09-25 06:38:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-09-25 06:38:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-09-25 06:38:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-09-25 06:38:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 06:38:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 06:38:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 06:38:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 06:38:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:38:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 06:38:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:38:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:38:44,593 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:44,663 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-25 06:38:44,663 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-25 06:38:44,706 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:44,859 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-09-25 06:38:44,860 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-09-25 06:38:44,862 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:44,913 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 06:38:44,913 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 06:38:44,919 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:45,023 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 06:38:45,024 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 06:38:45,207 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:45,231 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 06:38:45,231 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 06:38:45,279 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:45,424 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 06:38:45,424 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 06:38:45,463 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:38:45,464 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 06:38:45,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:45 BoogieIcfgContainer [2020-09-25 06:38:45,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:38:45,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:38:45,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:38:45,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:38:45,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:38:43" (1/3) ... [2020-09-25 06:38:45,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4724d0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:45, skipping insertion in model container [2020-09-25 06:38:45,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:44" (2/3) ... [2020-09-25 06:38:45,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4724d0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:45, skipping insertion in model container [2020-09-25 06:38:45,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:45" (3/3) ... [2020-09-25 06:38:45,484 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2020-09-25 06:38:45,496 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:38:45,507 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:38:45,530 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:38:45,568 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:38:45,568 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:38:45,568 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:38:45,568 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:38:45,569 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:38:45,569 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:38:45,569 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:38:45,569 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:38:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states. [2020-09-25 06:38:45,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 06:38:45,629 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:45,631 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 06:38:45,631 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:45,638 INFO L82 PathProgramCache]: Analyzing trace with hash 337662663, now seen corresponding path program 1 times [2020-09-25 06:38:45,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:45,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484366911] [2020-09-25 06:38:45,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:45,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:46,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:46,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:46,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:46,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:46,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:47,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:47,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 06:38:47,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:38:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1545 [2020-09-25 06:38:47,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:47,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:47,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:47,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 06:38:47,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:38:47,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:38:47,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:47,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:47,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:47,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:38:47,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:38:47,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:47,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:47,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:47,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:47,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:38:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:47,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:47,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:47,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:38:47,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:47,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:38:47,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:47,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:47,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:47,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:47,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 06:38:47,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:47,723 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 06:38:47,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484366911] [2020-09-25 06:38:47,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:47,728 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:38:47,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100281705] [2020-09-25 06:38:47,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:38:47,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:47,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:38:47,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:38:47,770 INFO L87 Difference]: Start difference. First operand 666 states. Second operand 5 states. [2020-09-25 06:38:49,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:49,726 INFO L93 Difference]: Finished difference Result 1035 states and 1244 transitions. [2020-09-25 06:38:49,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:38:49,728 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-09-25 06:38:49,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:49,752 INFO L225 Difference]: With dead ends: 1035 [2020-09-25 06:38:49,752 INFO L226 Difference]: Without dead ends: 706 [2020-09-25 06:38:49,762 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 06:38:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-25 06:38:49,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 652. [2020-09-25 06:38:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-09-25 06:38:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 746 transitions. [2020-09-25 06:38:49,883 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 746 transitions. Word has length 85 [2020-09-25 06:38:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:49,886 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 746 transitions. [2020-09-25 06:38:49,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:38:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 746 transitions. [2020-09-25 06:38:49,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 06:38:49,895 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:49,896 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 06:38:49,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:38:49,896 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:49,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:49,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1711200696, now seen corresponding path program 1 times [2020-09-25 06:38:49,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:49,897 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024961231] [2020-09-25 06:38:49,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:49,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:50,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 06:38:50,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:50,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-09-25 06:38:50,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:50,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:38:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-25 06:38:50,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 06:38:50,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:50,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:50,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:50,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:38:50,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:38:50,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:50,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:50,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:50,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:50,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:50,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:50,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:38:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:50,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:50,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:38:50,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:38:50,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:50,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:50,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:50,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:50,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:38:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:50,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:50,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:38:50,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:50,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:38:50,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:50,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:50,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:38:50,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:50,697 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 06:38:50,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024961231] [2020-09-25 06:38:50,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:50,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:38:50,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814525518] [2020-09-25 06:38:50,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:38:50,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:50,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:38:50,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:38:50,703 INFO L87 Difference]: Start difference. First operand 652 states and 746 transitions. Second operand 6 states. [2020-09-25 06:38:52,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:52,766 INFO L93 Difference]: Finished difference Result 967 states and 1119 transitions. [2020-09-25 06:38:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:38:52,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-09-25 06:38:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:52,780 INFO L225 Difference]: With dead ends: 967 [2020-09-25 06:38:52,780 INFO L226 Difference]: Without dead ends: 879 [2020-09-25 06:38:52,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:38:52,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-09-25 06:38:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 803. [2020-09-25 06:38:52,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-09-25 06:38:52,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 913 transitions. [2020-09-25 06:38:52,855 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 913 transitions. Word has length 136 [2020-09-25 06:38:52,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:52,856 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 913 transitions. [2020-09-25 06:38:52,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:38:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 913 transitions. [2020-09-25 06:38:52,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 06:38:52,861 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:52,861 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 06:38:52,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:38:52,862 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:52,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:52,862 INFO L82 PathProgramCache]: Analyzing trace with hash -472111805, now seen corresponding path program 1 times [2020-09-25 06:38:52,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:52,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518482698] [2020-09-25 06:38:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:53,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:53,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:38:53,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:53,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-09-25 06:38:53,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:53,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:53,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:38:53,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-25 06:38:53,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 06:38:53,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:53,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:53,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:53,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:38:53,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:53,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:38:53,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:53,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:53,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:53,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:53,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:53,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:53,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:38:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:53,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:53,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:53,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:38:53,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:53,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:38:53,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:53,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:53,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:53,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:53,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:38:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:53,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:53,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:53,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:38:53,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:53,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:38:53,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:53,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:53,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:38:53,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:53,502 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 06:38:53,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518482698] [2020-09-25 06:38:53,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:53,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:38:53,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498992070] [2020-09-25 06:38:53,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:38:53,505 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:53,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:38:53,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:38:53,505 INFO L87 Difference]: Start difference. First operand 803 states and 913 transitions. Second operand 6 states. [2020-09-25 06:38:54,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:54,987 INFO L93 Difference]: Finished difference Result 1124 states and 1281 transitions. [2020-09-25 06:38:54,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 06:38:54,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-25 06:38:54,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:54,993 INFO L225 Difference]: With dead ends: 1124 [2020-09-25 06:38:54,993 INFO L226 Difference]: Without dead ends: 901 [2020-09-25 06:38:54,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:38:54,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-09-25 06:38:55,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 878. [2020-09-25 06:38:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-25 06:38:55,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 999 transitions. [2020-09-25 06:38:55,036 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 999 transitions. Word has length 158 [2020-09-25 06:38:55,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:55,037 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 999 transitions. [2020-09-25 06:38:55,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:38:55,037 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 999 transitions. [2020-09-25 06:38:55,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:38:55,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:55,040 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 06:38:55,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:38:55,041 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:55,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:55,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1225477396, now seen corresponding path program 1 times [2020-09-25 06:38:55,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:55,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349519757] [2020-09-25 06:38:55,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:55,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:55,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:38:55,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:55,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-09-25 06:38:55,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:55,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:38:55,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 06:38:55,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 06:38:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:55,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:55,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:55,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:38:55,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:38:55,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:55,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:55,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:38:55,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:38:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:55,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:38:55,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:55,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:38:55,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:55,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:55,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:55,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:55,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:55,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:38:55,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:38:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:55,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:55,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:38:55,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:55,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:38:55,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:55,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:55,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:55,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:55,684 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 06:38:55,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349519757] [2020-09-25 06:38:55,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:55,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:38:55,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026442980] [2020-09-25 06:38:55,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:38:55,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:55,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:38:55,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:38:55,690 INFO L87 Difference]: Start difference. First operand 878 states and 999 transitions. Second operand 6 states. [2020-09-25 06:38:57,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:57,349 INFO L93 Difference]: Finished difference Result 882 states and 1002 transitions. [2020-09-25 06:38:57,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:38:57,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 06:38:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:57,356 INFO L225 Difference]: With dead ends: 882 [2020-09-25 06:38:57,357 INFO L226 Difference]: Without dead ends: 878 [2020-09-25 06:38:57,357 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 06:38:57,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-09-25 06:38:57,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 877. [2020-09-25 06:38:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-09-25 06:38:57,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 996 transitions. [2020-09-25 06:38:57,392 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 996 transitions. Word has length 162 [2020-09-25 06:38:57,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:57,392 INFO L479 AbstractCegarLoop]: Abstraction has 877 states and 996 transitions. [2020-09-25 06:38:57,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:38:57,393 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 996 transitions. [2020-09-25 06:38:57,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 06:38:57,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:57,396 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 06:38:57,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:38:57,397 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:57,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:57,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1858696707, now seen corresponding path program 1 times [2020-09-25 06:38:57,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:57,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343181396] [2020-09-25 06:38:57,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:57,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:57,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:58,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:58,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:58,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 06:39:00,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:39:00,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3090 [2020-09-25 06:39:00,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:00,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 06:39:00,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-25 06:39:00,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:00,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:00,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:00,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:00,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:00,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:00,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:00,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:00,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:00,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:00,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:00,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:39:00,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:00,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:00,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:00,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:39:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:00,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:00,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:00,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:00,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:00,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:00,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:39:00,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:00,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 06:39:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:00,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 06:39:00,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 06:39:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 06:39:00,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:00,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 06:39:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:00,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:39:00,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:39:00,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:00,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:00,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:00,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 06:39:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:00,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:00,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:00,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:00,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:00,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:00,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:00,900 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 06:39:00,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343181396] [2020-09-25 06:39:00,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:00,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:39:00,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137381078] [2020-09-25 06:39:00,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:39:00,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:00,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:39:00,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:00,903 INFO L87 Difference]: Start difference. First operand 877 states and 996 transitions. Second operand 8 states. [2020-09-25 06:39:02,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:02,408 INFO L93 Difference]: Finished difference Result 886 states and 1007 transitions. [2020-09-25 06:39:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:39:02,408 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-09-25 06:39:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:02,414 INFO L225 Difference]: With dead ends: 886 [2020-09-25 06:39:02,414 INFO L226 Difference]: Without dead ends: 364 [2020-09-25 06:39:02,416 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 06:39:02,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-09-25 06:39:02,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 307. [2020-09-25 06:39:02,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-25 06:39:02,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 324 transitions. [2020-09-25 06:39:02,433 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 324 transitions. Word has length 187 [2020-09-25 06:39:02,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:02,433 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 324 transitions. [2020-09-25 06:39:02,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:39:02,433 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 324 transitions. [2020-09-25 06:39:02,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-25 06:39:02,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:02,436 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 06:39:02,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:02,436 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:02,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:02,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1820316512, now seen corresponding path program 1 times [2020-09-25 06:39:02,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:02,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304768924] [2020-09-25 06:39:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:02,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:03,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 06:39:03,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 830 [2020-09-25 06:39:03,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:03,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 06:39:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:39:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:03,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:03,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:03,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:03,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:03,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:03,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:03,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:03,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:03,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:03,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:03,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:03,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:03,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:03,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:03,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:03,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:39:03,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:03,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:03,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:03,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:03,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:03,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:03,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:39:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:03,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:03,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:03,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:03,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:03,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:03,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:03,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:03,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:03,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:39:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:03,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:03,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:03,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:39:03,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:03,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 06:39:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:39:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:03,560 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 06:39:03,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304768924] [2020-09-25 06:39:03,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:03,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:39:03,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285270461] [2020-09-25 06:39:03,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:39:03,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:03,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:39:03,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:03,565 INFO L87 Difference]: Start difference. First operand 307 states and 324 transitions. Second operand 8 states. [2020-09-25 06:39:04,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:04,768 INFO L93 Difference]: Finished difference Result 368 states and 392 transitions. [2020-09-25 06:39:04,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:39:04,769 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 197 [2020-09-25 06:39:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:04,772 INFO L225 Difference]: With dead ends: 368 [2020-09-25 06:39:04,772 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 06:39:04,774 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 06:39:04,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 06:39:04,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2020-09-25 06:39:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-25 06:39:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 323 transitions. [2020-09-25 06:39:04,795 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 323 transitions. Word has length 197 [2020-09-25 06:39:04,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:04,796 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 323 transitions. [2020-09-25 06:39:04,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:39:04,797 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 323 transitions. [2020-09-25 06:39:04,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 06:39:04,802 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:04,802 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 06:39:04,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:04,803 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:04,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:04,804 INFO L82 PathProgramCache]: Analyzing trace with hash 667967814, now seen corresponding path program 1 times [2020-09-25 06:39:04,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:04,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635600854] [2020-09-25 06:39:04,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:04,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:04,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 06:39:05,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-09-25 06:39:05,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:05,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-25 06:39:05,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:39:05,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:05,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:05,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:39:05,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:05,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:05,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:05,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:39:05,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:05,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:05,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:39:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:05,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:05,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:05,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:05,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-25 06:39:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:39:05,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:39:05,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:05,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:05,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:39:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:39:05,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:05,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:05,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:05,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:05,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 06:39:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:05,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:05,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:39:05,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:05,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:05,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:05,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:39:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:05,458 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 06:39:05,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635600854] [2020-09-25 06:39:05,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:05,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:39:05,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059915588] [2020-09-25 06:39:05,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:39:05,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:05,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:39:05,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:05,462 INFO L87 Difference]: Start difference. First operand 307 states and 323 transitions. Second operand 8 states. [2020-09-25 06:39:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:05,891 INFO L93 Difference]: Finished difference Result 353 states and 374 transitions. [2020-09-25 06:39:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:39:05,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-09-25 06:39:05,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:05,893 INFO L225 Difference]: With dead ends: 353 [2020-09-25 06:39:05,893 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 06:39:05,894 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 06:39:05,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 06:39:05,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 303. [2020-09-25 06:39:05,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-09-25 06:39:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 317 transitions. [2020-09-25 06:39:05,927 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 317 transitions. Word has length 213 [2020-09-25 06:39:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:05,928 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 317 transitions. [2020-09-25 06:39:05,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:39:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 317 transitions. [2020-09-25 06:39:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 06:39:05,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:05,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:05,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:05,932 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:05,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:05,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1190108144, now seen corresponding path program 1 times [2020-09-25 06:39:05,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:05,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016808959] [2020-09-25 06:39:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:05,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:06,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:06,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 06:39:08,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2375 [2020-09-25 06:39:08,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-09-25 06:39:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:39:08,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:08,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:08,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:39:08,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:08,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:08,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:08,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:08,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:39:08,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:08,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:08,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:39:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:08,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:08,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:08,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:39:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:39:08,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 06:39:08,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:39:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 06:39:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:39:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:39:08,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:08,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:39:08,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:08,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:08,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:39:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:39:08,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:08,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:39:08,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:08,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:08,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,964 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 06:39:08,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016808959] [2020-09-25 06:39:08,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:08,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 06:39:08,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235427885] [2020-09-25 06:39:08,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:39:08,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:08,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:39:08,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:39:08,967 INFO L87 Difference]: Start difference. First operand 303 states and 317 transitions. Second operand 11 states. [2020-09-25 06:39:09,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:09,720 INFO L93 Difference]: Finished difference Result 387 states and 412 transitions. [2020-09-25 06:39:09,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:39:09,723 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2020-09-25 06:39:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:09,725 INFO L225 Difference]: With dead ends: 387 [2020-09-25 06:39:09,725 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 06:39:09,726 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 06:39:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 06:39:09,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 321. [2020-09-25 06:39:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 06:39:09,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 338 transitions. [2020-09-25 06:39:09,740 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 338 transitions. Word has length 224 [2020-09-25 06:39:09,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:09,740 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 338 transitions. [2020-09-25 06:39:09,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:39:09,741 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 338 transitions. [2020-09-25 06:39:09,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 06:39:09,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:09,744 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 06:39:09,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:39:09,745 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:09,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:09,745 INFO L82 PathProgramCache]: Analyzing trace with hash 149463484, now seen corresponding path program 1 times [2020-09-25 06:39:09,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:09,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552092663] [2020-09-25 06:39:09,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:09,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:09,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:11,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:11,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 06:39:14,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 06:39:14,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:14,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-09-25 06:39:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:39:14,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:14,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:14,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:39:14,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:14,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:14,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:14,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:14,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:14,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:39:14,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:14,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:15,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:39:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:15,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:15,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:15,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:39:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:39:15,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 06:39:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:15,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:39:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:39:15,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:39:15,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:15,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:39:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:15,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:39:15,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:15,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:15,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:15,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:15,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:15,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:15,241 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 06:39:15,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552092663] [2020-09-25 06:39:15,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:15,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:39:15,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540226138] [2020-09-25 06:39:15,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:39:15,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:15,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:39:15,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:15,244 INFO L87 Difference]: Start difference. First operand 321 states and 338 transitions. Second operand 8 states. [2020-09-25 06:39:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:15,768 INFO L93 Difference]: Finished difference Result 344 states and 362 transitions. [2020-09-25 06:39:15,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:39:15,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-09-25 06:39:15,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:15,772 INFO L225 Difference]: With dead ends: 344 [2020-09-25 06:39:15,772 INFO L226 Difference]: Without dead ends: 339 [2020-09-25 06:39:15,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:39:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-25 06:39:15,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 323. [2020-09-25 06:39:15,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-09-25 06:39:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 339 transitions. [2020-09-25 06:39:15,788 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 339 transitions. Word has length 225 [2020-09-25 06:39:15,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:15,789 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 339 transitions. [2020-09-25 06:39:15,789 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:39:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 339 transitions. [2020-09-25 06:39:15,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 06:39:15,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:15,792 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 06:39:15,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:39:15,793 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:15,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:15,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1227578766, now seen corresponding path program 1 times [2020-09-25 06:39:15,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:15,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441959969] [2020-09-25 06:39:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:15,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:15,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:17,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 06:39:17,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:17,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1781 [2020-09-25 06:39:17,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:17,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:39:17,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-25 06:39:17,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 06:39:17,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:17,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:17,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:17,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:17,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:17,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:17,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:17,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:17,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:17,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:17,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:17,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:17,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:17,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:17,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:17,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:39:17,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:17,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:17,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:17,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:39:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:17,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:17,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:17,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:17,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:17,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:17,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:17,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:39:17,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:17,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:39:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:17,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:17,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:18,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:39:18,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-25 06:39:18,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:18,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 06:39:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:18,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:39:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:18,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:18,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:39:18,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:18,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:39:18,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:18,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:18,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:18,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:39:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:18,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:18,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:18,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:39:18,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:39:18,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:18,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:18,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:18,108 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 06:39:18,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441959969] [2020-09-25 06:39:18,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:18,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 06:39:18,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039244393] [2020-09-25 06:39:18,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:39:18,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:18,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:39:18,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:18,110 INFO L87 Difference]: Start difference. First operand 323 states and 339 transitions. Second operand 8 states. [2020-09-25 06:39:18,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:18,699 INFO L93 Difference]: Finished difference Result 560 states and 590 transitions. [2020-09-25 06:39:18,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:39:18,700 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-09-25 06:39:18,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:18,703 INFO L225 Difference]: With dead ends: 560 [2020-09-25 06:39:18,703 INFO L226 Difference]: Without dead ends: 550 [2020-09-25 06:39:18,704 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 06:39:18,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-09-25 06:39:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 530. [2020-09-25 06:39:18,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2020-09-25 06:39:18,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 561 transitions. [2020-09-25 06:39:18,735 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 561 transitions. Word has length 225 [2020-09-25 06:39:18,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:18,735 INFO L479 AbstractCegarLoop]: Abstraction has 530 states and 561 transitions. [2020-09-25 06:39:18,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:39:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 561 transitions. [2020-09-25 06:39:18,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-25 06:39:18,740 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:18,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:18,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 06:39:18,740 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:18,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:18,741 INFO L82 PathProgramCache]: Analyzing trace with hash 41536610, now seen corresponding path program 1 times [2020-09-25 06:39:18,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:18,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567095126] [2020-09-25 06:39:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:18,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:18,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:20,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:20,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:21,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-25 06:39:23,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:39:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:39:23,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:39:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 06:39:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-25 06:39:23,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:23,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:23,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:39:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:23,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:39:23,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:24,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:24,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:39:24,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 06:39:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:24,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:39:24,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:39:24,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:39:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:39:24,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-09-25 06:39:24,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 06:39:24,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:39:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:39:24,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:39:24,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:39:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:24,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:24,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:24,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:39:24,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:39:24,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:24,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:24,486 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 06:39:24,487 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567095126] [2020-09-25 06:39:24,487 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:24,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 06:39:24,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709473295] [2020-09-25 06:39:24,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:39:24,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:24,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:39:24,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:39:24,489 INFO L87 Difference]: Start difference. First operand 530 states and 561 transitions. Second operand 11 states. [2020-09-25 06:39:25,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:25,695 INFO L93 Difference]: Finished difference Result 672 states and 721 transitions. [2020-09-25 06:39:25,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 06:39:25,696 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 226 [2020-09-25 06:39:25,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:25,700 INFO L225 Difference]: With dead ends: 672 [2020-09-25 06:39:25,700 INFO L226 Difference]: Without dead ends: 620 [2020-09-25 06:39:25,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-09-25 06:39:25,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2020-09-25 06:39:25,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 582. [2020-09-25 06:39:25,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-09-25 06:39:25,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 617 transitions. [2020-09-25 06:39:25,756 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 617 transitions. Word has length 226 [2020-09-25 06:39:25,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:25,757 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 617 transitions. [2020-09-25 06:39:25,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:39:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 617 transitions. [2020-09-25 06:39:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 06:39:25,761 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:25,762 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 06:39:25,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 06:39:25,762 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:25,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1031480085, now seen corresponding path program 1 times [2020-09-25 06:39:25,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:25,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197948055] [2020-09-25 06:39:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:25,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 06:39:26,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-09-25 06:39:26,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:26,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-25 06:39:26,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:26,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:26,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:26,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:26,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:26,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:39:26,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:39:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:26,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:39:26,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 06:39:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 06:39:26,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 06:39:26,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 06:39:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:39:26,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:26,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:39:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:39:26,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 06:39:26,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:26,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:39:26,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:39:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:26,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:26,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:26,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:39:26,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:26,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:26,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:26,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:26,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:26,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:26,781 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 06:39:26,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197948055] [2020-09-25 06:39:26,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:26,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 06:39:26,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152165560] [2020-09-25 06:39:26,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:39:26,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:26,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:39:26,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:39:26,783 INFO L87 Difference]: Start difference. First operand 582 states and 617 transitions. Second operand 11 states. [2020-09-25 06:39:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:27,484 INFO L93 Difference]: Finished difference Result 687 states and 732 transitions. [2020-09-25 06:39:27,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:39:27,491 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 227 [2020-09-25 06:39:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:27,495 INFO L225 Difference]: With dead ends: 687 [2020-09-25 06:39:27,495 INFO L226 Difference]: Without dead ends: 552 [2020-09-25 06:39:27,497 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 06:39:27,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-09-25 06:39:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2020-09-25 06:39:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-09-25 06:39:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 581 transitions. [2020-09-25 06:39:27,527 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 581 transitions. Word has length 227 [2020-09-25 06:39:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:27,528 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 581 transitions. [2020-09-25 06:39:27,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:39:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 581 transitions. [2020-09-25 06:39:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 06:39:27,530 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:27,531 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 06:39:27,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 06:39:27,531 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:27,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:27,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1776023437, now seen corresponding path program 1 times [2020-09-25 06:39:27,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:27,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086053455] [2020-09-25 06:39:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:27,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 06:39:28,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-09-25 06:39:28,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:39:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 06:39:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-25 06:39:28,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:39:28,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:28,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 06:39:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 06:39:28,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 06:39:28,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:39:28,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:39:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:39:28,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 06:39:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 06:39:28,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:39:28,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 06:39:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:39:28,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:39:28,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:39:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 06:39:28,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:39:28,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:28,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:39:28,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 06:39:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:28,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:28,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:28,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:39:28,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:28,539 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 06:39:28,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086053455] [2020-09-25 06:39:28,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:28,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 06:39:28,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223642511] [2020-09-25 06:39:28,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 06:39:28,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:28,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 06:39:28,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:39:28,541 INFO L87 Difference]: Start difference. First operand 552 states and 581 transitions. Second operand 13 states. [2020-09-25 06:39:29,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:29,563 INFO L93 Difference]: Finished difference Result 573 states and 604 transitions. [2020-09-25 06:39:29,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 06:39:29,563 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 232 [2020-09-25 06:39:29,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:29,566 INFO L225 Difference]: With dead ends: 573 [2020-09-25 06:39:29,566 INFO L226 Difference]: Without dead ends: 468 [2020-09-25 06:39:29,567 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-25 06:39:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-09-25 06:39:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2020-09-25 06:39:29,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-09-25 06:39:29,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 485 transitions. [2020-09-25 06:39:29,585 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 485 transitions. Word has length 232 [2020-09-25 06:39:29,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:29,586 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 485 transitions. [2020-09-25 06:39:29,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 06:39:29,586 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 485 transitions. [2020-09-25 06:39:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-25 06:39:29,588 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:29,588 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, 1] [2020-09-25 06:39:29,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 06:39:29,588 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:29,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:29,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1909428757, now seen corresponding path program 1 times [2020-09-25 06:39:29,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:29,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457813321] [2020-09-25 06:39:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:29,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:29,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:30,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:30,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking...