/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=SHALLOWEST --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_simpl1.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:49:41,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:49:41,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:49:41,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:49:41,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:49:41,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:49:41,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:49:41,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:49:41,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:49:41,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:49:41,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:49:41,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:49:41,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:49:41,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:49:41,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:49:41,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:49:41,833 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:49:41,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:49:41,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:49:41,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:49:41,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:49:41,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:49:41,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:49:41,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:49:41,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:49:41,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:49:41,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:49:41,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:49:41,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:49:41,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:49:41,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:49:41,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:49:41,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:49:41,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:49:41,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:49:41,882 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:49:41,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:49:41,883 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:49:41,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:49:41,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:49:41,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:49:41,888 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 [2020-09-24 23:49:41,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:49:41,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:49:41,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:49:41,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:49:41,935 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:49:41,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:49:41,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:49:41,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:49:41,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:49:41,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:49:41,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:49:41,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:49:41,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:49:41,939 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:49:41,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:49:41,939 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:49:41,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:49:41,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:49:41,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:49:41,940 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:49:41,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:49:41,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:49:41,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:49:41,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:49:41,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:49:41,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:49:41,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:49:41,944 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:49:41,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:49:41,945 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:49:42,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:49:42,371 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:49:42,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:49:42,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:49:42,379 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:49:42,380 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-24 23:49:42,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02f2d0855/628b94a7358941cb88cc2d08c0892a22/FLAG9d391004e [2020-09-24 23:49:43,048 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:49:43,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl1.cil.c [2020-09-24 23:49:43,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02f2d0855/628b94a7358941cb88cc2d08c0892a22/FLAG9d391004e [2020-09-24 23:49:43,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02f2d0855/628b94a7358941cb88cc2d08c0892a22 [2020-09-24 23:49:43,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:49:43,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:49:43,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:43,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:49:43,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:49:43,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218d3b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43, skipping insertion in model container [2020-09-24 23:49:43,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:49:43,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:49:43,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:43,753 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:49:43,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:49:43,922 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:49:43,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43 WrapperNode [2020-09-24 23:49:43,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:49:43,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:49:43,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:49:43,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:49:43,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... [2020-09-24 23:49:43,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:49:43,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:49:43,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:49:43,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:49:43,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:49:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:49:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:49:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-24 23:49:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-24 23:49:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-24 23:49:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:49:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-24 23:49:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-24 23:49:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-24 23:49:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-24 23:49:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-24 23:49:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-24 23:49:44,088 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-24 23:49:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:49:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 23:49:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:49:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 23:49:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-24 23:49:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-24 23:49:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-24 23:49:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-24 23:49:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-24 23:49:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-24 23:49:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-24 23:49:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-24 23:49:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-24 23:49:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:49:44,095 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-24 23:49:44,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:49:44,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:49:44,395 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:44,553 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2020-09-24 23:49:44,554 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2020-09-24 23:49:44,555 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:44,622 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume false; [2020-09-24 23:49:44,622 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !false; [2020-09-24 23:49:44,648 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:44,676 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-24 23:49:44,677 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-24 23:49:44,693 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 23:49:44,859 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-24 23:49:44,859 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-24 23:49:44,880 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:49:44,880 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:49:44,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:44 BoogieIcfgContainer [2020-09-24 23:49:44,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:49:44,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:49:44,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:49:44,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:49:44,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:49:43" (1/3) ... [2020-09-24 23:49:44,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86a553e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:44, skipping insertion in model container [2020-09-24 23:49:44,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:49:43" (2/3) ... [2020-09-24 23:49:44,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86a553e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:49:44, skipping insertion in model container [2020-09-24 23:49:44,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:49:44" (3/3) ... [2020-09-24 23:49:44,899 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl1.cil.c [2020-09-24 23:49:44,911 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:49:44,923 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:49:44,947 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:49:44,979 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:49:44,979 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:49:44,979 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:49:44,979 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:49:44,979 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:49:44,979 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:49:44,980 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:49:44,980 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:49:45,013 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states. [2020-09-24 23:49:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-24 23:49:45,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:45,028 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] [2020-09-24 23:49:45,028 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:45,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1164793869, now seen corresponding path program 1 times [2020-09-24 23:49:45,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:45,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917257600] [2020-09-24 23:49:45,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:45,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:45,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:45,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:45,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:45,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:46,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:46,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:46,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-24 23:49:46,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:49:46,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1612 [2020-09-24 23:49:46,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-24 23:49:46,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:49:46,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:49:47,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:47,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:47,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:47,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:49:47,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:49:47,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:47,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:47,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:47,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:49:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:47,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:47,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:47,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:47,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:49:47,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:47,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:47,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:47,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:49:47,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:47,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:47,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917257600] [2020-09-24 23:49:47,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:47,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:49:47,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986683466] [2020-09-24 23:49:47,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:49:47,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:47,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:49:47,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:49:47,255 INFO L87 Difference]: Start difference. First operand 366 states. Second operand 5 states. [2020-09-24 23:49:48,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:48,555 INFO L93 Difference]: Finished difference Result 666 states and 826 transitions. [2020-09-24 23:49:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:49:48,559 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2020-09-24 23:49:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:48,602 INFO L225 Difference]: With dead ends: 666 [2020-09-24 23:49:48,603 INFO L226 Difference]: Without dead ends: 382 [2020-09-24 23:49:48,613 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 [2020-09-24 23:49:48,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-09-24 23:49:48,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 351. [2020-09-24 23:49:48,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-09-24 23:49:48,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 401 transitions. [2020-09-24 23:49:48,698 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 401 transitions. Word has length 83 [2020-09-24 23:49:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:48,699 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 401 transitions. [2020-09-24 23:49:48,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:49:48,700 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 401 transitions. [2020-09-24 23:49:48,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-24 23:49:48,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:48,706 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] [2020-09-24 23:49:48,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:49:48,706 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:48,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:48,707 INFO L82 PathProgramCache]: Analyzing trace with hash 192642435, now seen corresponding path program 1 times [2020-09-24 23:49:48,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:48,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1961932418] [2020-09-24 23:49:48,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:48,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:49,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-24 23:49:49,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:49,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-09-24 23:49:49,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-09-24 23:49:49,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:49:49,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:49,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:49,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:49:49,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:49,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:49:49,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:49,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:49,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:49,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:49:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:49,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:49,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:49,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:49,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:49:49,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:49,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:49,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:49,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:49:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:49,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:49,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:49,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:49:49,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:49,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:49:49,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 23:49:49,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:49,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1961932418] [2020-09-24 23:49:49,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:49,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:49:49,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274703852] [2020-09-24 23:49:49,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:49:49,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:49,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:49:49,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:49:49,528 INFO L87 Difference]: Start difference. First operand 351 states and 401 transitions. Second operand 6 states. [2020-09-24 23:49:50,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:50,893 INFO L93 Difference]: Finished difference Result 588 states and 683 transitions. [2020-09-24 23:49:50,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:49:50,893 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-09-24 23:49:50,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:50,899 INFO L225 Difference]: With dead ends: 588 [2020-09-24 23:49:50,899 INFO L226 Difference]: Without dead ends: 502 [2020-09-24 23:49:50,901 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 [2020-09-24 23:49:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-09-24 23:49:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 463. [2020-09-24 23:49:50,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-24 23:49:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 527 transitions. [2020-09-24 23:49:50,969 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 527 transitions. Word has length 146 [2020-09-24 23:49:50,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:50,970 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 527 transitions. [2020-09-24 23:49:50,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:49:50,970 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 527 transitions. [2020-09-24 23:49:50,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 23:49:50,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:50,978 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] [2020-09-24 23:49:50,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:49:50,979 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:50,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:50,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1733953169, now seen corresponding path program 1 times [2020-09-24 23:49:50,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:50,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288134935] [2020-09-24 23:49:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:51,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:51,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:51,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-09-24 23:49:51,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:51,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-09-24 23:49:51,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:51,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:51,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-24 23:49:51,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 23:49:51,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:51,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:51,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:51,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:51,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:49:51,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:49:51,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:51,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:51,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:51,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:51,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 23:49:51,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:49:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:51,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:51,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:51,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:51,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:51,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:49:51,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:51,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:51,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 23:49:51,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:49:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:51,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:51,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:51,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:49:51,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:51,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:49:51,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:51,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:51,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:49:51,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:51,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:51,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288134935] [2020-09-24 23:49:51,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:51,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:49:51,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934831076] [2020-09-24 23:49:51,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:49:51,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:51,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:49:51,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:49:51,801 INFO L87 Difference]: Start difference. First operand 463 states and 527 transitions. Second operand 6 states. [2020-09-24 23:49:52,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:52,854 INFO L93 Difference]: Finished difference Result 665 states and 762 transitions. [2020-09-24 23:49:52,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:49:52,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2020-09-24 23:49:52,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:52,860 INFO L225 Difference]: With dead ends: 665 [2020-09-24 23:49:52,860 INFO L226 Difference]: Without dead ends: 556 [2020-09-24 23:49:52,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:49:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-09-24 23:49:52,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 502. [2020-09-24 23:49:52,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-24 23:49:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 574 transitions. [2020-09-24 23:49:52,893 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 574 transitions. Word has length 148 [2020-09-24 23:49:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:52,893 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 574 transitions. [2020-09-24 23:49:52,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:49:52,893 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 574 transitions. [2020-09-24 23:49:52,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 23:49:52,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:52,898 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] [2020-09-24 23:49:52,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:49:52,898 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:52,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:52,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1023389875, now seen corresponding path program 1 times [2020-09-24 23:49:52,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:52,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114874971] [2020-09-24 23:49:52,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:52,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:53,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:53,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 23:49:53,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:53,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-24 23:49:53,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:49:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-24 23:49:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:49:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:53,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:53,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:53,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:53,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:49:53,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:49:53,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:53,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:53,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:53,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:49:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:53,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:53,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:53,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:53,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:53,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:49:53,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:53,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:53,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:49:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:53,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:53,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:49:53,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:53,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:53,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:53,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:53,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114874971] [2020-09-24 23:49:53,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:53,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:49:53,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864564581] [2020-09-24 23:49:53,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:49:53,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:53,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:49:53,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:49:53,567 INFO L87 Difference]: Start difference. First operand 502 states and 574 transitions. Second operand 6 states. [2020-09-24 23:49:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:54,719 INFO L93 Difference]: Finished difference Result 506 states and 577 transitions. [2020-09-24 23:49:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:49:54,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-24 23:49:54,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:54,727 INFO L225 Difference]: With dead ends: 506 [2020-09-24 23:49:54,728 INFO L226 Difference]: Without dead ends: 503 [2020-09-24 23:49:54,728 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 [2020-09-24 23:49:54,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-09-24 23:49:54,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2020-09-24 23:49:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-24 23:49:54,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 573 transitions. [2020-09-24 23:49:54,775 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 573 transitions. Word has length 172 [2020-09-24 23:49:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:54,776 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 573 transitions. [2020-09-24 23:49:54,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:49:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 573 transitions. [2020-09-24 23:49:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 23:49:54,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:54,783 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] [2020-09-24 23:49:54,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:49:54,785 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:54,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:54,785 INFO L82 PathProgramCache]: Analyzing trace with hash -734364592, now seen corresponding path program 1 times [2020-09-24 23:49:54,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:54,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690654751] [2020-09-24 23:49:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:55,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 23:49:55,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:49:55,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 876 [2020-09-24 23:49:55,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:55,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-24 23:49:55,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:49:55,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:55,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:49:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:55,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:55,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:49:55,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:55,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:49:55,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:55,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:55,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:55,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:49:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:49:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:55,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:49:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:49:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:55,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:49:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:55,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:49:55,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:55,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:49:55,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:49:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:49:55,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:49:55,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:55,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:49:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:55,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:55,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:49:55,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:49:55,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:49:55,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:49:55,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:49:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:49:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:49:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:49:55,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:49:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:49:55,979 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690654751] [2020-09-24 23:49:55,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:49:55,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:49:55,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848422300] [2020-09-24 23:49:55,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:49:55,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:49:55,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:49:55,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:49:55,982 INFO L87 Difference]: Start difference. First operand 502 states and 573 transitions. Second operand 8 states. [2020-09-24 23:49:57,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:49:57,322 INFO L93 Difference]: Finished difference Result 580 states and 662 transitions. [2020-09-24 23:49:57,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:49:57,322 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 186 [2020-09-24 23:49:57,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:49:57,328 INFO L225 Difference]: With dead ends: 580 [2020-09-24 23:49:57,328 INFO L226 Difference]: Without dead ends: 471 [2020-09-24 23:49:57,329 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 [2020-09-24 23:49:57,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-09-24 23:49:57,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 451. [2020-09-24 23:49:57,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-09-24 23:49:57,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 511 transitions. [2020-09-24 23:49:57,374 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 511 transitions. Word has length 186 [2020-09-24 23:49:57,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:49:57,375 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 511 transitions. [2020-09-24 23:49:57,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:49:57,375 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 511 transitions. [2020-09-24 23:49:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-24 23:49:57,378 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:49:57,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:49:57,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:49:57,379 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:49:57,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:49:57,379 INFO L82 PathProgramCache]: Analyzing trace with hash -617767856, now seen corresponding path program 1 times [2020-09-24 23:49:57,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:49:57,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553127761] [2020-09-24 23:49:57,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:49:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:49:57,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:57,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:58,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:58,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:49:59,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:00,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:00,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 23:50:00,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:50:00,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3058 [2020-09-24 23:50:00,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:50:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 23:50:00,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 23:50:00,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:00,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:00,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:00,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:00,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:00,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:00,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:00,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:00,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:00,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:00,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:00,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:00,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:00,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:00,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 23:50:00,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:00,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:50:00,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:00,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:50:00,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:00,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:00,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:00,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:00,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:00,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:00,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:50:00,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:50:00,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:00,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 23:50:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:00,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:00,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:00,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:50:00,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:00,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-24 23:50:00,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:00,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:50:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 23:50:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-24 23:50:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:50:00,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 23:50:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:01,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:01,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:01,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:50:01,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:01,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 23:50:01,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:50:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:50:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-24 23:50:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:01,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553127761] [2020-09-24 23:50:01,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:01,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 23:50:01,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051198300] [2020-09-24 23:50:01,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:50:01,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:01,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:50:01,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:01,230 INFO L87 Difference]: Start difference. First operand 451 states and 511 transitions. Second operand 13 states. [2020-09-24 23:50:03,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:03,957 INFO L93 Difference]: Finished difference Result 522 states and 590 transitions. [2020-09-24 23:50:03,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 23:50:03,958 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 191 [2020-09-24 23:50:03,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:03,963 INFO L225 Difference]: With dead ends: 522 [2020-09-24 23:50:03,964 INFO L226 Difference]: Without dead ends: 488 [2020-09-24 23:50:03,965 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-09-24 23:50:03,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-09-24 23:50:03,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 453. [2020-09-24 23:50:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2020-09-24 23:50:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 511 transitions. [2020-09-24 23:50:03,989 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 511 transitions. Word has length 191 [2020-09-24 23:50:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:03,990 INFO L479 AbstractCegarLoop]: Abstraction has 453 states and 511 transitions. [2020-09-24 23:50:03,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:50:03,991 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 511 transitions. [2020-09-24 23:50:03,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-24 23:50:03,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:03,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:03,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:50:03,994 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:03,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:03,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1244650569, now seen corresponding path program 1 times [2020-09-24 23:50:03,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:03,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319863144] [2020-09-24 23:50:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-24 23:50:04,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:50:04,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-09-24 23:50:04,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-24 23:50:04,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 23:50:04,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:04,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:04,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:04,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:04,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:04,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:04,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:04,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:04,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:50:04,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:04,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:04,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:04,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:04,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:04,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:04,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:04,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:04,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:50:04,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:04,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-24 23:50:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-09-24 23:50:04,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:04,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 23:50:04,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:04,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-24 23:50:04,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:04,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-24 23:50:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:04,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:04,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:04,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:04,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:04,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:50:04,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:04,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:04,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:04,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319863144] [2020-09-24 23:50:04,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:04,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:50:04,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000531372] [2020-09-24 23:50:04,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:50:04,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:04,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:50:04,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:50:04,831 INFO L87 Difference]: Start difference. First operand 453 states and 511 transitions. Second operand 8 states. [2020-09-24 23:50:05,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:05,322 INFO L93 Difference]: Finished difference Result 471 states and 532 transitions. [2020-09-24 23:50:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:50:05,323 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 193 [2020-09-24 23:50:05,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:05,325 INFO L225 Difference]: With dead ends: 471 [2020-09-24 23:50:05,325 INFO L226 Difference]: Without dead ends: 280 [2020-09-24 23:50:05,327 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:05,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-24 23:50:05,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-09-24 23:50:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-24 23:50:05,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 293 transitions. [2020-09-24 23:50:05,348 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 293 transitions. Word has length 193 [2020-09-24 23:50:05,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:05,348 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 293 transitions. [2020-09-24 23:50:05,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:50:05,349 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 293 transitions. [2020-09-24 23:50:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 23:50:05,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:05,351 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] [2020-09-24 23:50:05,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:50:05,352 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:05,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:05,352 INFO L82 PathProgramCache]: Analyzing trace with hash -836248096, now seen corresponding path program 1 times [2020-09-24 23:50:05,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:05,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733141545] [2020-09-24 23:50:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-24 23:50:05,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 23:50:05,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 207 [2020-09-24 23:50:05,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:50:05,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:05,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:05,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:05,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:05,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:05,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:50:05,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:05,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:05,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:05,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:05,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:05,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 23:50:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:05,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:50:05,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:05,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:50:05,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:05,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:05,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:05,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 23:50:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:05,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:05,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:05,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:05,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:05,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:05,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:05,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:50:05,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:05,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733141545] [2020-09-24 23:50:05,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:05,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:50:05,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184583652] [2020-09-24 23:50:05,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:50:05,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:05,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:50:05,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:50:05,916 INFO L87 Difference]: Start difference. First operand 280 states and 293 transitions. Second operand 8 states. [2020-09-24 23:50:06,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:06,435 INFO L93 Difference]: Finished difference Result 325 states and 343 transitions. [2020-09-24 23:50:06,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:50:06,436 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 200 [2020-09-24 23:50:06,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:06,439 INFO L225 Difference]: With dead ends: 325 [2020-09-24 23:50:06,439 INFO L226 Difference]: Without dead ends: 276 [2020-09-24 23:50:06,440 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 [2020-09-24 23:50:06,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-24 23:50:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2020-09-24 23:50:06,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-24 23:50:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 287 transitions. [2020-09-24 23:50:06,451 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 287 transitions. Word has length 200 [2020-09-24 23:50:06,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:06,452 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 287 transitions. [2020-09-24 23:50:06,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:50:06,452 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 287 transitions. [2020-09-24 23:50:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-24 23:50:06,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:06,455 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] [2020-09-24 23:50:06,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 23:50:06,455 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:06,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:06,456 INFO L82 PathProgramCache]: Analyzing trace with hash -602224561, now seen corresponding path program 1 times [2020-09-24 23:50:06,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:06,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224761622] [2020-09-24 23:50:06,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:06,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:06,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:07,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:07,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 23:50:07,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:07,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1359 [2020-09-24 23:50:07,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 23:50:07,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 23:50:07,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:07,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:07,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:07,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:07,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:07,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:07,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:07,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:07,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:07,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:07,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:08,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:08,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:08,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:08,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:08,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:08,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 23:50:08,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:08,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:50:08,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:08,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:50:08,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:08,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:08,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:08,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:08,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:08,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:08,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:50:08,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:08,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:08,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:50:08,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:08,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:50:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:08,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:08,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:08,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-24 23:50:08,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:08,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 23:50:08,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:50:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-24 23:50:08,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 23:50:08,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:08,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:08,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:08,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:08,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:08,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:50:08,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:08,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:08,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:08,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:08,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:08,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:08,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:08,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:50:08,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:08,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:08,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:08,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:08,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:08,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:08,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:08,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:08,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:08,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:08,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:08,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:08,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:08,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:50:08,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:08,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [224761622] [2020-09-24 23:50:08,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:08,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:50:08,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912800640] [2020-09-24 23:50:08,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:50:08,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:08,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:50:08,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:50:08,409 INFO L87 Difference]: Start difference. First operand 276 states and 287 transitions. Second operand 12 states. [2020-09-24 23:50:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:09,414 INFO L93 Difference]: Finished difference Result 321 states and 337 transitions. [2020-09-24 23:50:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 23:50:09,414 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 216 [2020-09-24 23:50:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:09,416 INFO L225 Difference]: With dead ends: 321 [2020-09-24 23:50:09,417 INFO L226 Difference]: Without dead ends: 274 [2020-09-24 23:50:09,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2020-09-24 23:50:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-24 23:50:09,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-09-24 23:50:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-24 23:50:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 284 transitions. [2020-09-24 23:50:09,430 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 284 transitions. Word has length 216 [2020-09-24 23:50:09,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:09,431 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 284 transitions. [2020-09-24 23:50:09,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:50:09,431 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 284 transitions. [2020-09-24 23:50:09,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 23:50:09,434 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:09,434 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] [2020-09-24 23:50:09,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 23:50:09,435 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:09,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:09,435 INFO L82 PathProgramCache]: Analyzing trace with hash -2077149002, now seen corresponding path program 1 times [2020-09-24 23:50:09,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:09,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304596606] [2020-09-24 23:50:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:09,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:09,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:10,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 23:50:11,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:50:11,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1741 [2020-09-24 23:50:11,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-09-24 23:50:11,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:50:11,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:11,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:11,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:11,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:11,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:11,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:11,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:11,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:11,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:11,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:50:11,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:11,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:11,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:11,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:11,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:50:11,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:11,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:11,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:11,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:50:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:50:11,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:11,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 23:50:11,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-24 23:50:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:50:11,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:11,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:11,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:11,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:50:11,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:11,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:11,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:11,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:11,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:11,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:11,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:11,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:50:11,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:11,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:11,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:11,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:11,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:11,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:11,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:11,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:11,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:50:11,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:11,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:11,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:50:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:11,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304596606] [2020-09-24 23:50:11,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:11,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:50:11,607 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723523880] [2020-09-24 23:50:11,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:50:11,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:11,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:50:11,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:50:11,608 INFO L87 Difference]: Start difference. First operand 274 states and 284 transitions. Second operand 9 states. [2020-09-24 23:50:12,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:12,042 INFO L93 Difference]: Finished difference Result 329 states and 345 transitions. [2020-09-24 23:50:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:50:12,043 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 218 [2020-09-24 23:50:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:12,045 INFO L225 Difference]: With dead ends: 329 [2020-09-24 23:50:12,045 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 23:50:12,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:50:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 23:50:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 277. [2020-09-24 23:50:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-24 23:50:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 287 transitions. [2020-09-24 23:50:12,058 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 287 transitions. Word has length 218 [2020-09-24 23:50:12,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:12,059 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 287 transitions. [2020-09-24 23:50:12,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:50:12,060 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 287 transitions. [2020-09-24 23:50:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-24 23:50:12,062 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:12,062 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] [2020-09-24 23:50:12,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 23:50:12,063 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:12,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:12,063 INFO L82 PathProgramCache]: Analyzing trace with hash 666432309, now seen corresponding path program 1 times [2020-09-24 23:50:12,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:12,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898009024] [2020-09-24 23:50:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:12,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:12,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:12,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:12,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 23:50:15,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:50:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3298 [2020-09-24 23:50:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:50:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-09-24 23:50:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-09-24 23:50:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:15,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:15,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:15,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:15,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:15,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:15,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:15,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 23:50:15,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:50:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:15,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:50:15,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:15,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:15,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:50:15,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:15,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:15,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:50:15,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:50:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:15,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-24 23:50:15,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:15,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 23:50:15,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 23:50:15,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:15,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 23:50:15,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:15,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:15,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:15,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:50:15,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:15,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:15,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:15,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:15,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:15,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:15,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:15,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:15,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:15,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:15,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:15,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:15,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:15,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:50:15,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:15,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:15,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:15,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898009024] [2020-09-24 23:50:15,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:15,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 23:50:15,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017633778] [2020-09-24 23:50:15,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:50:15,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:15,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:50:15,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:15,999 INFO L87 Difference]: Start difference. First operand 277 states and 287 transitions. Second operand 13 states. [2020-09-24 23:50:16,481 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-09-24 23:50:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:17,050 INFO L93 Difference]: Finished difference Result 299 states and 310 transitions. [2020-09-24 23:50:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 23:50:17,051 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-09-24 23:50:17,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:17,054 INFO L225 Difference]: With dead ends: 299 [2020-09-24 23:50:17,054 INFO L226 Difference]: Without dead ends: 269 [2020-09-24 23:50:17,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2020-09-24 23:50:17,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-24 23:50:17,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 254. [2020-09-24 23:50:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-24 23:50:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 260 transitions. [2020-09-24 23:50:17,066 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 260 transitions. Word has length 219 [2020-09-24 23:50:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:17,067 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 260 transitions. [2020-09-24 23:50:17,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:50:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 260 transitions. [2020-09-24 23:50:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-09-24 23:50:17,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:17,069 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] [2020-09-24 23:50:17,069 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 23:50:17,069 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:17,070 INFO L82 PathProgramCache]: Analyzing trace with hash -2086033285, now seen corresponding path program 1 times [2020-09-24 23:50:17,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:17,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199458739] [2020-09-24 23:50:17,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:17,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:17,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:17,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 23:50:18,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:50:18,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1077 [2020-09-24 23:50:18,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:50:18,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-24 23:50:18,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:50:18,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:18,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:18,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:18,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:18,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:50:18,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:18,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:50:18,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:50:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 23:50:18,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:18,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:50:18,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:18,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:18,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:18,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:18,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:18,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:18,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:18,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:50:18,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:18,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:18,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:18,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:18,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199458739] [2020-09-24 23:50:18,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:18,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:50:18,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112636627] [2020-09-24 23:50:18,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:50:18,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:18,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:50:18,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:50:18,602 INFO L87 Difference]: Start difference. First operand 254 states and 260 transitions. Second operand 12 states. [2020-09-24 23:50:19,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:19,271 INFO L93 Difference]: Finished difference Result 264 states and 269 transitions. [2020-09-24 23:50:19,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:50:19,271 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2020-09-24 23:50:19,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:19,274 INFO L225 Difference]: With dead ends: 264 [2020-09-24 23:50:19,275 INFO L226 Difference]: Without dead ends: 254 [2020-09-24 23:50:19,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-09-24 23:50:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-24 23:50:19,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-09-24 23:50:19,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-24 23:50:19,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 259 transitions. [2020-09-24 23:50:19,287 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 259 transitions. Word has length 223 [2020-09-24 23:50:19,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:19,288 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 259 transitions. [2020-09-24 23:50:19,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:50:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 259 transitions. [2020-09-24 23:50:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-24 23:50:19,290 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:19,290 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] [2020-09-24 23:50:19,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 23:50:19,290 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:19,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:19,291 INFO L82 PathProgramCache]: Analyzing trace with hash 795376417, now seen corresponding path program 1 times [2020-09-24 23:50:19,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:19,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142740074] [2020-09-24 23:50:19,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:19,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:19,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:20,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:20,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:20,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 23:50:20,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:50:20,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1663 [2020-09-24 23:50:20,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-24 23:50:20,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 23:50:20,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:21,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:21,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:21,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:21,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:21,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:21,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:21,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:21,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:21,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:21,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:21,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:21,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:50:21,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:21,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:21,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:21,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:21,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:21,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:21,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:21,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:21,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:21,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 23:50:21,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:50:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:21,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:21,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:21,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:50:21,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:21,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 23:50:21,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:21,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 23:50:21,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:21,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:21,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:21,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:21,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:21,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:50:21,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:21,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:21,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:21,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:21,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:21,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:21,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:21,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:21,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:21,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:21,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:21,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:21,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:21,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:21,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:21,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:21,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:21,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:21,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:50:21,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:21,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:21,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:21,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:21,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:21,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142740074] [2020-09-24 23:50:21,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:21,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:50:21,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447431447] [2020-09-24 23:50:21,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:50:21,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:21,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:50:21,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:50:21,329 INFO L87 Difference]: Start difference. First operand 254 states and 259 transitions. Second operand 9 states. [2020-09-24 23:50:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:21,990 INFO L93 Difference]: Finished difference Result 427 states and 435 transitions. [2020-09-24 23:50:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:50:21,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 224 [2020-09-24 23:50:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:21,993 INFO L225 Difference]: With dead ends: 427 [2020-09-24 23:50:21,993 INFO L226 Difference]: Without dead ends: 417 [2020-09-24 23:50:21,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=129, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:50:21,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-24 23:50:22,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 409. [2020-09-24 23:50:22,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-24 23:50:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 418 transitions. [2020-09-24 23:50:22,016 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 418 transitions. Word has length 224 [2020-09-24 23:50:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:22,016 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 418 transitions. [2020-09-24 23:50:22,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:50:22,017 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 418 transitions. [2020-09-24 23:50:22,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-24 23:50:22,019 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:22,019 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] [2020-09-24 23:50:22,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 23:50:22,019 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:22,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:22,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1267646381, now seen corresponding path program 1 times [2020-09-24 23:50:22,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:22,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195229920] [2020-09-24 23:50:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 23:50:22,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-09-24 23:50:22,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-24 23:50:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 23:50:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:22,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:22,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:22,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:22,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:22,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:50:22,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:22,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:22,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:50:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:22,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:50:22,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:50:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:50:22,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 23:50:22,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:22,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:22,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:50:22,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:22,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:50:22,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:22,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 23:50:22,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:22,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:22,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:22,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:22,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:50:22,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:22,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:22,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:22,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:22,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:50:22,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:22,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:22,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:50:22,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:22,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195229920] [2020-09-24 23:50:22,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:22,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:50:22,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369668653] [2020-09-24 23:50:22,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:50:22,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:22,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:50:22,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:50:22,856 INFO L87 Difference]: Start difference. First operand 409 states and 418 transitions. Second operand 9 states. [2020-09-24 23:50:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:23,502 INFO L93 Difference]: Finished difference Result 448 states and 459 transitions. [2020-09-24 23:50:23,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:50:23,503 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 225 [2020-09-24 23:50:23,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:23,506 INFO L225 Difference]: With dead ends: 448 [2020-09-24 23:50:23,506 INFO L226 Difference]: Without dead ends: 402 [2020-09-24 23:50:23,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:50:23,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-24 23:50:23,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2020-09-24 23:50:23,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-24 23:50:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 407 transitions. [2020-09-24 23:50:23,525 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 407 transitions. Word has length 225 [2020-09-24 23:50:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:23,525 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 407 transitions. [2020-09-24 23:50:23,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:50:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 407 transitions. [2020-09-24 23:50:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 23:50:23,527 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:23,528 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] [2020-09-24 23:50:23,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 23:50:23,528 INFO L427 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:23,529 INFO L82 PathProgramCache]: Analyzing trace with hash 273790532, now seen corresponding path program 1 times [2020-09-24 23:50:23,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:23,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804343668] [2020-09-24 23:50:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:23,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-24 23:50:24,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:24,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 565 [2020-09-24 23:50:24,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:50:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 23:50:24,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:50:24,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:24,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:50:24,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:24,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:50:24,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:24,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:24,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:24,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:50:24,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:24,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 23:50:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:50:24,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:24,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 23:50:24,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 23:50:24,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:24,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:50:24,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:24,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:50:24,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:24,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:24,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:24,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:24,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:24,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:50:24,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:24,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:24,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:24,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:24,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804343668] [2020-09-24 23:50:24,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:24,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 23:50:24,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570517200] [2020-09-24 23:50:24,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:50:24,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:24,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:50:24,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:24,696 INFO L87 Difference]: Start difference. First operand 402 states and 407 transitions. Second operand 13 states. [2020-09-24 23:50:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:25,488 INFO L93 Difference]: Finished difference Result 419 states and 424 transitions. [2020-09-24 23:50:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:50:25,489 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 226 [2020-09-24 23:50:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:25,492 INFO L225 Difference]: With dead ends: 419 [2020-09-24 23:50:25,492 INFO L226 Difference]: Without dead ends: 402 [2020-09-24 23:50:25,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:50:25,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-24 23:50:25,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2020-09-24 23:50:25,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-24 23:50:25,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 405 transitions. [2020-09-24 23:50:25,510 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 405 transitions. Word has length 226 [2020-09-24 23:50:25,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:25,511 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 405 transitions. [2020-09-24 23:50:25,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:50:25,511 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 405 transitions. [2020-09-24 23:50:25,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-24 23:50:25,513 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:50:25,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:50:25,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 23:50:25,514 INFO L427 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:50:25,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:50:25,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1143051315, now seen corresponding path program 1 times [2020-09-24 23:50:25,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:50:25,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306453041] [2020-09-24 23:50:25,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:50:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:25,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:25,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 593 [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 226 [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:50:26,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:50:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:50:26,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:26,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:26,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:26,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:26,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:26,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-24 23:50:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:26,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-24 23:50:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:50:26,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:26,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:50:26,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:26,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:26,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 23:50:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-24 23:50:26,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:26,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 23:50:26,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:50:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-24 23:50:26,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-24 23:50:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:50:26,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:26,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:50:26,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:26,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:26,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:26,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:50:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:50:26,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:26,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:50:26,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:26,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-24 23:50:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:50:26,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:50:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:50:26,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:50:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:50:26,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:50:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-24 23:50:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:50:26,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:50:26,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:50:26,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:50:26,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:50:26,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:50:26,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:50:26,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:50:26,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:50:26,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:50:26,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:50:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:50:26,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306453041] [2020-09-24 23:50:26,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:50:26,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:50:26,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324900463] [2020-09-24 23:50:26,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:50:26,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:50:26,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:50:26,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:50:26,523 INFO L87 Difference]: Start difference. First operand 402 states and 405 transitions. Second operand 11 states. [2020-09-24 23:50:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:50:27,121 INFO L93 Difference]: Finished difference Result 402 states and 405 transitions. [2020-09-24 23:50:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:50:27,122 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2020-09-24 23:50:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:50:27,123 INFO L225 Difference]: With dead ends: 402 [2020-09-24 23:50:27,123 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 23:50:27,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:50:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 23:50:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 23:50:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 23:50:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 23:50:27,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 245 [2020-09-24 23:50:27,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:50:27,125 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 23:50:27,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:50:27,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 23:50:27,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 23:50:27,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 23:50:27,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 23:50:29,740 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 42 [2020-09-24 23:50:29,962 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2020-09-24 23:50:30,251 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38