/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:18:00,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:18:00,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:18:00,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:18:00,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:18:00,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:18:00,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:18:00,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:18:00,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:18:00,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:18:00,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:18:00,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:18:00,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:18:00,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:18:00,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:18:00,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:18:00,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:18:00,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:18:00,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:18:00,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:18:00,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:18:00,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:18:00,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:18:00,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:18:00,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:18:00,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:18:00,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:18:00,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:18:00,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:18:00,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:18:00,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:18:00,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:18:00,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:18:00,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:18:00,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:18:00,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:18:00,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:18:00,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:18:00,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:18:00,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:18:00,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:18:00,146 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:18:00,187 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:18:00,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:18:00,190 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:18:00,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:18:00,190 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:18:00,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:18:00,191 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:18:00,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:18:00,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:18:00,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:18:00,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:18:00,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:18:00,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:18:00,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:18:00,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:18:00,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:18:00,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:18:00,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:18:00,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:18:00,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:18:00,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:18:00,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:00,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:18:00,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:18:00,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:18:00,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:18:00,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:18:00,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:18:00,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:18:00,196 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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:18:00,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:18:00,694 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:18:00,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:18:00,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:18:00,700 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:18:00,701 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-09-25 12:18:00,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7929a1c5a/4eb9339ad37743f794ccb8db42a9da61/FLAG463869e46 [2020-09-25 12:18:01,339 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:18:01,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-09-25 12:18:01,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7929a1c5a/4eb9339ad37743f794ccb8db42a9da61/FLAG463869e46 [2020-09-25 12:18:01,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7929a1c5a/4eb9339ad37743f794ccb8db42a9da61 [2020-09-25 12:18:01,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:18:01,637 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:18:01,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:01,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:18:01,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:18:01,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:01" (1/1) ... [2020-09-25 12:18:01,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afef70d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:01, skipping insertion in model container [2020-09-25 12:18:01,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:18:01" (1/1) ... [2020-09-25 12:18:01,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:18:01,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:18:02,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:02,128 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:18:02,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:18:02,316 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:18:02,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02 WrapperNode [2020-09-25 12:18:02,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:18:02,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:18:02,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:18:02,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:18:02,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... [2020-09-25 12:18:02,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... [2020-09-25 12:18:02,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... [2020-09-25 12:18:02,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... [2020-09-25 12:18:02,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... [2020-09-25 12:18:02,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... [2020-09-25 12:18:02,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... [2020-09-25 12:18:02,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:18:02,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:18:02,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:18:02,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:18:02,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:18:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:18:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:18:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 12:18:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 12:18:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 12:18:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:18:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 12:18:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 12:18:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 12:18:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 12:18:02,472 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 12:18:02,473 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 12:18:02,473 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-09-25 12:18:02,473 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-09-25 12:18:02,473 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-09-25 12:18:02,474 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-09-25 12:18:02,474 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-09-25 12:18:02,474 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 12:18:02,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:18:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 12:18:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:18:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 12:18:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 12:18:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 12:18:02,475 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 12:18:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 12:18:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 12:18:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-09-25 12:18:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-09-25 12:18:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-09-25 12:18:02,476 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-09-25 12:18:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-09-25 12:18:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 12:18:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 12:18:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 12:18:02,477 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 12:18:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:18:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 12:18:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:18:02,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:18:02,758 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 12:18:02,858 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-25 12:18:02,858 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-25 12:18:02,896 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 12:18:03,058 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-09-25 12:18:03,059 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-09-25 12:18:03,063 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 12:18:03,153 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 12:18:03,154 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 12:18:03,163 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 12:18:03,245 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 12:18:03,246 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 12:18:03,404 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 12:18:03,427 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 12:18:03,427 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 12:18:03,475 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 12:18:03,612 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 12:18:03,613 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 12:18:03,638 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:18:03,638 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:18:03,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:03 BoogieIcfgContainer [2020-09-25 12:18:03,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:18:03,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:18:03,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:18:03,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:18:03,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:18:01" (1/3) ... [2020-09-25 12:18:03,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c67fcb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:03, skipping insertion in model container [2020-09-25 12:18:03,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:18:02" (2/3) ... [2020-09-25 12:18:03,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c67fcb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:18:03, skipping insertion in model container [2020-09-25 12:18:03,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:18:03" (3/3) ... [2020-09-25 12:18:03,665 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-09-25 12:18:03,679 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:18:03,696 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:18:03,719 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:18:03,767 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:18:03,768 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:18:03,768 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:18:03,768 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:18:03,768 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:18:03,769 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:18:03,769 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:18:03,769 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:18:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states. [2020-09-25 12:18:03,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:18:03,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:03,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:03,834 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:03,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:03,843 INFO L82 PathProgramCache]: Analyzing trace with hash 738723625, now seen corresponding path program 1 times [2020-09-25 12:18:03,855 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:03,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265125359] [2020-09-25 12:18:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:04,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:04,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:04,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:04,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:04,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:04,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:05,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:05,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 12:18:05,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:18:05,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1469 [2020-09-25 12:18:05,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:05,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:05,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 12:18:05,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 12:18:05,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:18:05,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:05,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:05,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:05,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:05,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:05,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:18:05,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:05,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:05,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:05,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:05,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:18:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:05,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:05,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:05,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:05,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:05,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:18:05,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:05,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 12:18:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:05,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265125359] [2020-09-25 12:18:05,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:05,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:18:05,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656783313] [2020-09-25 12:18:05,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:18:05,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:05,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:18:05,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:18:05,997 INFO L87 Difference]: Start difference. First operand 667 states. Second operand 5 states. [2020-09-25 12:18:08,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:08,044 INFO L93 Difference]: Finished difference Result 1037 states and 1248 transitions. [2020-09-25 12:18:08,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:18:08,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-09-25 12:18:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:08,070 INFO L225 Difference]: With dead ends: 1037 [2020-09-25 12:18:08,071 INFO L226 Difference]: Without dead ends: 709 [2020-09-25 12:18:08,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:18:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-09-25 12:18:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 655. [2020-09-25 12:18:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2020-09-25 12:18:08,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 750 transitions. [2020-09-25 12:18:08,187 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 750 transitions. Word has length 85 [2020-09-25 12:18:08,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:08,188 INFO L479 AbstractCegarLoop]: Abstraction has 655 states and 750 transitions. [2020-09-25 12:18:08,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:18:08,188 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 750 transitions. [2020-09-25 12:18:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 12:18:08,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:08,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:08,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:18:08,196 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:08,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:08,196 INFO L82 PathProgramCache]: Analyzing trace with hash -242240865, now seen corresponding path program 1 times [2020-09-25 12:18:08,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:08,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620888665] [2020-09-25 12:18:08,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:08,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:08,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:08,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 12:18:08,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:08,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 521 [2020-09-25 12:18:08,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:08,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:08,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:18:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-25 12:18:08,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:18:08,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:18:08,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:08,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:08,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:08,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:08,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:08,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:18:08,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:08,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:08,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:08,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:08,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:09,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:09,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:09,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:09,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:09,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:09,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:18:09,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:09,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:09,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:09,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:09,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:09,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:18:09,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:09,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 12:18:09,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:09,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620888665] [2020-09-25 12:18:09,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:09,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:18:09,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094400333] [2020-09-25 12:18:09,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:18:09,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:09,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:18:09,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:18:09,102 INFO L87 Difference]: Start difference. First operand 655 states and 750 transitions. Second operand 6 states. [2020-09-25 12:18:11,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:11,004 INFO L93 Difference]: Finished difference Result 976 states and 1131 transitions. [2020-09-25 12:18:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:18:11,004 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-09-25 12:18:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:11,018 INFO L225 Difference]: With dead ends: 976 [2020-09-25 12:18:11,018 INFO L226 Difference]: Without dead ends: 885 [2020-09-25 12:18:11,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:18:11,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2020-09-25 12:18:11,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 806. [2020-09-25 12:18:11,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2020-09-25 12:18:11,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 917 transitions. [2020-09-25 12:18:11,089 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 917 transitions. Word has length 136 [2020-09-25 12:18:11,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:11,091 INFO L479 AbstractCegarLoop]: Abstraction has 806 states and 917 transitions. [2020-09-25 12:18:11,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:18:11,091 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 917 transitions. [2020-09-25 12:18:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 12:18:11,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:11,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:11,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:18:11,125 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:11,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:11,126 INFO L82 PathProgramCache]: Analyzing trace with hash 864276638, now seen corresponding path program 1 times [2020-09-25 12:18:11,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:11,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076871448] [2020-09-25 12:18:11,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:11,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:11,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:11,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 12:18:11,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:11,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-09-25 12:18:11,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:11,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:11,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:11,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-25 12:18:11,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 12:18:11,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:11,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:11,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:11,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:11,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:11,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:11,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:18:11,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:11,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:11,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:11,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:11,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:11,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:11,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:11,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:11,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:11,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:18:11,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:11,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:11,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:11,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:11,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:11,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:11,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:11,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:11,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:18:11,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:11,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:18:11,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:11,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:11,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076871448] [2020-09-25 12:18:11,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:11,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:18:11,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054273403] [2020-09-25 12:18:11,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:18:11,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:11,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:18:11,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:18:11,798 INFO L87 Difference]: Start difference. First operand 806 states and 917 transitions. Second operand 6 states. [2020-09-25 12:18:13,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:13,248 INFO L93 Difference]: Finished difference Result 1133 states and 1293 transitions. [2020-09-25 12:18:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:18:13,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-25 12:18:13,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:13,255 INFO L225 Difference]: With dead ends: 1133 [2020-09-25 12:18:13,255 INFO L226 Difference]: Without dead ends: 907 [2020-09-25 12:18:13,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:18:13,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2020-09-25 12:18:13,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 881. [2020-09-25 12:18:13,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-09-25 12:18:13,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1003 transitions. [2020-09-25 12:18:13,295 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1003 transitions. Word has length 158 [2020-09-25 12:18:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:13,295 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 1003 transitions. [2020-09-25 12:18:13,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:18:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1003 transitions. [2020-09-25 12:18:13,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 12:18:13,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:13,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:13,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:18:13,300 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:13,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:13,300 INFO L82 PathProgramCache]: Analyzing trace with hash 153469469, now seen corresponding path program 1 times [2020-09-25 12:18:13,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:13,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889920425] [2020-09-25 12:18:13,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:13,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:13,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:13,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 12:18:13,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:13,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 12:18:13,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:13,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 12:18:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:18:13,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:13,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:13,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:13,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:13,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:13,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:13,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:18:13,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:13,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:13,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:13,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:13,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:13,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:13,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:13,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:13,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:13,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:13,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:18:13,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:13,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:13,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:13,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:13,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:13,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:13,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:13,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:13,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:13,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:13,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:13,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:13,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:13,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:13,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889920425] [2020-09-25 12:18:13,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:13,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:18:13,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005811366] [2020-09-25 12:18:13,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:18:13,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:13,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:18:13,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:18:13,930 INFO L87 Difference]: Start difference. First operand 881 states and 1003 transitions. Second operand 6 states. [2020-09-25 12:18:15,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:15,706 INFO L93 Difference]: Finished difference Result 885 states and 1006 transitions. [2020-09-25 12:18:15,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:18:15,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 12:18:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:15,715 INFO L225 Difference]: With dead ends: 885 [2020-09-25 12:18:15,715 INFO L226 Difference]: Without dead ends: 881 [2020-09-25 12:18:15,716 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:18:15,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-09-25 12:18:15,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 880. [2020-09-25 12:18:15,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-09-25 12:18:15,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1000 transitions. [2020-09-25 12:18:15,752 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1000 transitions. Word has length 162 [2020-09-25 12:18:15,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:15,753 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1000 transitions. [2020-09-25 12:18:15,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:18:15,753 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1000 transitions. [2020-09-25 12:18:15,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 12:18:15,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:15,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:15,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:18:15,758 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:15,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:15,758 INFO L82 PathProgramCache]: Analyzing trace with hash 198218449, now seen corresponding path program 1 times [2020-09-25 12:18:15,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:15,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [793274302] [2020-09-25 12:18:15,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:15,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:15,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:16,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:17,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:17,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:18,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 12:18:18,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:18:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3105 [2020-09-25 12:18:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:18,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 12:18:18,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 12:18:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:19,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:19,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:19,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:18:19,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:19,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:19,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:19,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:19,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:19,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:19,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:19,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:19,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:19,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:19,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:18:19,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:19,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:19,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:19,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:19,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:19,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:19,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:19,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:19,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:18:19,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:19,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 12:18:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:19,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 12:18:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:19,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:19,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:19,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 12:18:19,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:19,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 12:18:19,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:19,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:19,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 12:18:19,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:19,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:18:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:19,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:19,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:19,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 12:18:19,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:19,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:18:19,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:19,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:19,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:19,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:19,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:18:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:19,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:19,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:19,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:19,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:18:19,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:19,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:19,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:19,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [793274302] [2020-09-25 12:18:19,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:19,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 12:18:19,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775462848] [2020-09-25 12:18:19,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:18:19,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:19,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:18:19,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:18:19,382 INFO L87 Difference]: Start difference. First operand 880 states and 1000 transitions. Second operand 8 states. [2020-09-25 12:18:20,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:20,769 INFO L93 Difference]: Finished difference Result 892 states and 1015 transitions. [2020-09-25 12:18:20,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:18:20,769 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2020-09-25 12:18:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:20,775 INFO L225 Difference]: With dead ends: 892 [2020-09-25 12:18:20,775 INFO L226 Difference]: Without dead ends: 876 [2020-09-25 12:18:20,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:18:20,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2020-09-25 12:18:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 821. [2020-09-25 12:18:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2020-09-25 12:18:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 936 transitions. [2020-09-25 12:18:20,807 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 936 transitions. Word has length 192 [2020-09-25 12:18:20,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:20,808 INFO L479 AbstractCegarLoop]: Abstraction has 821 states and 936 transitions. [2020-09-25 12:18:20,808 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:18:20,808 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 936 transitions. [2020-09-25 12:18:20,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 12:18:20,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:20,811 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:20,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:18:20,812 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:20,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:20,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1857862353, now seen corresponding path program 1 times [2020-09-25 12:18:20,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:20,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135312063] [2020-09-25 12:18:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:20,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:20,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:22,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:25,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:25,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 12:18:25,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:18:25,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 12:18:25,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:25,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 12:18:25,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-25 12:18:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:25,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:25,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:25,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:25,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:25,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:25,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:25,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:25,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:25,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:25,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:25,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:26,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:26,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:26,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:26,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 12:18:26,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:26,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:26,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:18:26,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:26,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:26,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:26,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:26,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:26,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:18:26,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:26,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:26,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:26,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:18:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:26,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 12:18:26,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:26,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:26,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 12:18:26,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:26,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 12:18:26,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:26,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:26,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:26,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 12:18:26,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:26,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:18:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:26,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:26,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 12:18:26,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:26,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 12:18:26,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:26,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:26,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:26,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:26,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 12:18:26,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:26,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:18:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:26,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:26,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:26,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:26,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:26,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:18:26,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:26,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:26,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:26,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:26,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:18:26,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:26,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135312063] [2020-09-25 12:18:26,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:26,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 12:18:26,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89747891] [2020-09-25 12:18:26,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 12:18:26,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:26,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 12:18:26,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 12:18:26,571 INFO L87 Difference]: Start difference. First operand 821 states and 936 transitions. Second operand 12 states. [2020-09-25 12:18:29,073 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2020-09-25 12:18:30,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:30,100 INFO L93 Difference]: Finished difference Result 944 states and 1075 transitions. [2020-09-25 12:18:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:18:30,100 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2020-09-25 12:18:30,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:30,106 INFO L225 Difference]: With dead ends: 944 [2020-09-25 12:18:30,106 INFO L226 Difference]: Without dead ends: 937 [2020-09-25 12:18:30,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-09-25 12:18:30,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2020-09-25 12:18:30,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 881. [2020-09-25 12:18:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-09-25 12:18:30,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 998 transitions. [2020-09-25 12:18:30,143 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 998 transitions. Word has length 193 [2020-09-25 12:18:30,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:30,143 INFO L479 AbstractCegarLoop]: Abstraction has 881 states and 998 transitions. [2020-09-25 12:18:30,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 12:18:30,144 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 998 transitions. [2020-09-25 12:18:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 12:18:30,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:30,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:30,148 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:18:30,148 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:30,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1657532014, now seen corresponding path program 1 times [2020-09-25 12:18:30,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:30,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [67781633] [2020-09-25 12:18:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:30,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:30,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 12:18:33,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:18:33,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3122 [2020-09-25 12:18:33,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:18:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 12:18:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 12:18:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:33,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:33,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:33,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:33,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:18:33,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:33,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:33,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:33,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:33,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:33,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 12:18:33,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:18:33,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:18:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:18:33,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:33,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:33,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:33,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:18:33,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:18:33,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:33,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:18:33,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 12:18:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:33,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 12:18:33,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:33,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-25 12:18:33,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:18:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:18:33,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 12:18:33,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:33,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:18:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:33,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:33,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:33,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 12:18:33,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:33,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 12:18:33,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:33,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:18:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:33,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 12:18:33,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:34,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:18:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:34,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:34,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:34,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:34,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:18:34,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:34,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:18:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:18:34,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 12:18:34,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:34,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [67781633] [2020-09-25 12:18:34,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:34,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-25 12:18:34,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684129918] [2020-09-25 12:18:34,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 12:18:34,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:34,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 12:18:34,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2020-09-25 12:18:34,118 INFO L87 Difference]: Start difference. First operand 881 states and 998 transitions. Second operand 14 states. [2020-09-25 12:18:36,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:36,930 INFO L93 Difference]: Finished difference Result 931 states and 1049 transitions. [2020-09-25 12:18:36,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 12:18:36,931 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 194 [2020-09-25 12:18:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:36,935 INFO L225 Difference]: With dead ends: 931 [2020-09-25 12:18:36,936 INFO L226 Difference]: Without dead ends: 858 [2020-09-25 12:18:36,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2020-09-25 12:18:36,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2020-09-25 12:18:36,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 823. [2020-09-25 12:18:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2020-09-25 12:18:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 931 transitions. [2020-09-25 12:18:36,983 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 931 transitions. Word has length 194 [2020-09-25 12:18:36,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:36,984 INFO L479 AbstractCegarLoop]: Abstraction has 823 states and 931 transitions. [2020-09-25 12:18:36,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 12:18:36,984 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 931 transitions. [2020-09-25 12:18:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 12:18:36,988 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:36,988 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:36,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:18:36,989 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:36,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:36,989 INFO L82 PathProgramCache]: Analyzing trace with hash -853263794, now seen corresponding path program 1 times [2020-09-25 12:18:36,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:36,990 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136718778] [2020-09-25 12:18:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:37,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:37,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:37,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 12:18:37,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:37,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-09-25 12:18:37,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:37,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:37,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:18:37,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 12:18:37,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:18:37,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:37,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:38,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:38,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:38,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:38,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:18:38,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:38,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:38,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:38,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:38,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:38,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:38,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:38,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:38,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:18:38,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:38,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:38,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:38,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:38,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:38,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:38,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:38,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:18:38,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:38,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:38,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:38,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:38,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 12:18:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:38,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:38,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:18:38,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:38,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-09-25 12:18:38,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:38,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:18:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 12:18:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:38,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:18:38,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:38,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 12:18:38,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:38,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 12:18:38,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:38,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:18:38,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:38,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 12:18:38,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:38,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:18:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:38,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:38,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:38,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 12:18:38,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:38,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 12:18:38,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:38,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:38,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:18:38,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:38,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136718778] [2020-09-25 12:18:38,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:38,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 12:18:38,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121232029] [2020-09-25 12:18:38,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 12:18:38,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:38,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 12:18:38,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:18:38,670 INFO L87 Difference]: Start difference. First operand 823 states and 931 transitions. Second operand 17 states. [2020-09-25 12:18:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:42,905 INFO L93 Difference]: Finished difference Result 845 states and 955 transitions. [2020-09-25 12:18:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 12:18:42,905 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 190 [2020-09-25 12:18:42,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:42,910 INFO L225 Difference]: With dead ends: 845 [2020-09-25 12:18:42,910 INFO L226 Difference]: Without dead ends: 828 [2020-09-25 12:18:42,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-09-25 12:18:42,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2020-09-25 12:18:42,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 819. [2020-09-25 12:18:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 819 states. [2020-09-25 12:18:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 925 transitions. [2020-09-25 12:18:42,940 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 925 transitions. Word has length 190 [2020-09-25 12:18:42,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:42,940 INFO L479 AbstractCegarLoop]: Abstraction has 819 states and 925 transitions. [2020-09-25 12:18:42,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 12:18:42,941 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 925 transitions. [2020-09-25 12:18:42,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 12:18:42,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:42,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:42,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:18:42,944 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:42,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:42,945 INFO L82 PathProgramCache]: Analyzing trace with hash -443732248, now seen corresponding path program 1 times [2020-09-25 12:18:42,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:42,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180388034] [2020-09-25 12:18:42,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 12:18:43,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-09-25 12:18:43,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:18:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 12:18:43,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:18:43,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:43,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:18:43,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:43,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:18:43,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:43,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:43,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:43,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 12:18:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:18:43,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 12:18:43,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:18:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:18:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:43,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-25 12:18:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:43,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:43,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:43,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 12:18:43,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:43,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 12:18:43,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:43,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:43,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:43,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:43,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 12:18:43,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:44,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180388034] [2020-09-25 12:18:44,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:44,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 12:18:44,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852757646] [2020-09-25 12:18:44,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:18:44,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:44,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:18:44,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:18:44,091 INFO L87 Difference]: Start difference. First operand 819 states and 925 transitions. Second operand 13 states. [2020-09-25 12:18:47,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:18:47,504 INFO L93 Difference]: Finished difference Result 841 states and 949 transitions. [2020-09-25 12:18:47,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:18:47,505 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-09-25 12:18:47,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:18:47,510 INFO L225 Difference]: With dead ends: 841 [2020-09-25 12:18:47,510 INFO L226 Difference]: Without dead ends: 744 [2020-09-25 12:18:47,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:18:47,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2020-09-25 12:18:47,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 735. [2020-09-25 12:18:47,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 12:18:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 831 transitions. [2020-09-25 12:18:47,536 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 831 transitions. Word has length 193 [2020-09-25 12:18:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:18:47,537 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 831 transitions. [2020-09-25 12:18:47,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 12:18:47,537 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 831 transitions. [2020-09-25 12:18:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 12:18:47,540 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:18:47,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:18:47,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:18:47,540 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:18:47,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:18:47,541 INFO L82 PathProgramCache]: Analyzing trace with hash -132300136, now seen corresponding path program 1 times [2020-09-25 12:18:47,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:18:47,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042036347] [2020-09-25 12:18:47,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:18:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:47,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 12:18:48,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 735 [2020-09-25 12:18:48,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:18:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-25 12:18:48,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:18:48,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:48,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:18:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:48,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:18:48,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:18:48,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:48,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:48,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:48,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 12:18:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:48,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 12:18:48,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:18:48,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:48,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:48,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 12:18:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:48,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 12:18:48,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:18:48,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:18:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:48,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:18:48,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:48,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-09-25 12:18:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:48,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:18:48,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 12:18:48,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:18:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:48,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 12:18:48,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:48,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:18:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:48,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-25 12:18:48,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 12:18:48,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:18:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:48,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 12:18:48,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:18:48,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 12:18:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:18:48,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:18:48,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:18:48,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 12:18:48,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:18:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:18:48,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:18:48,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:18:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:18:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:18:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 12:18:48,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:18:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:18:49,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042036347] [2020-09-25 12:18:49,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:18:49,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-09-25 12:18:49,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282871390] [2020-09-25 12:18:49,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 12:18:49,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:18:49,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 12:18:49,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:18:49,034 INFO L87 Difference]: Start difference. First operand 735 states and 831 transitions. Second operand 17 states.