/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=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:02:57,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:02:57,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:02:57,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:02:57,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:02:57,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:02:57,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:02:57,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:02:57,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:02:57,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:02:57,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:02:57,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:02:57,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:02:57,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:02:57,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:02:57,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:02:57,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:02:57,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:02:57,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:02:57,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:02:57,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:02:57,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:02:57,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:02:57,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:02:57,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:02:57,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:02:57,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:02:57,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:02:57,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:02:57,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:02:57,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:02:57,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:02:57,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:02:57,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:02:57,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:02:57,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:02:57,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:02:57,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:02:57,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:02:57,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:02:57,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:02:57,399 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 10:02:57,458 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:02:57,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:02:57,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:02:57,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:02:57,461 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:02:57,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:02:57,461 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:02:57,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:02:57,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:02:57,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:02:57,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:02:57,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:02:57,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:02:57,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:02:57,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:02:57,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:02:57,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:02:57,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:02:57,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:02:57,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:02:57,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:02:57,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:02:57,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:02:57,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:02:57,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:02:57,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:02:57,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:02:57,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:02:57,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:02:57,467 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:02:57,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:02:57,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:02:57,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:02:57,935 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:02:57,935 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:02:57,936 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-25 10:02:58,012 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52bd0f12b/1f6231cd45f44e7c9f5197db551bc281/FLAG97d022a60 [2020-09-25 10:02:58,562 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:02:58,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ntdrivers-simplified/kbfiltr_simpl2.cil-1.c [2020-09-25 10:02:58,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52bd0f12b/1f6231cd45f44e7c9f5197db551bc281/FLAG97d022a60 [2020-09-25 10:02:58,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52bd0f12b/1f6231cd45f44e7c9f5197db551bc281 [2020-09-25 10:02:58,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:02:58,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:02:58,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:02:58,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:02:58,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:02:58,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:02:58" (1/1) ... [2020-09-25 10:02:58,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9fc7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:58, skipping insertion in model container [2020-09-25 10:02:58,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:02:58" (1/1) ... [2020-09-25 10:02:58,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:02:58,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:02:59,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:02:59,314 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:02:59,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:02:59,507 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:02:59,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59 WrapperNode [2020-09-25 10:02:59,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:02:59,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:02:59,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:02:59,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:02:59,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (1/1) ... [2020-09-25 10:02:59,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (1/1) ... [2020-09-25 10:02:59,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (1/1) ... [2020-09-25 10:02:59,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (1/1) ... [2020-09-25 10:02:59,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (1/1) ... [2020-09-25 10:02:59,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (1/1) ... [2020-09-25 10:02:59,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (1/1) ... [2020-09-25 10:02:59,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:02:59,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:02:59,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:02:59,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:02:59,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (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 10:02:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:02:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:02:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-09-25 10:02:59,669 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-09-25 10:02:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-09-25 10:02:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:02:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-09-25 10:02:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-09-25 10:02:59,670 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-09-25 10:02:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-09-25 10:02:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-09-25 10:02:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-09-25 10:02:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-09-25 10:02:59,671 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-09-25 10:02:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-09-25 10:02:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-09-25 10:02:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-09-25 10:02:59,672 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-09-25 10:02:59,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:02:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 10:02:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:02:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 10:02:59,673 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-09-25 10:02:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-09-25 10:02:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-09-25 10:02:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-09-25 10:02:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-09-25 10:02:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-09-25 10:02:59,674 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-09-25 10:02:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-09-25 10:02:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-09-25 10:02:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-09-25 10:02:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-09-25 10:02:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-09-25 10:02:59,675 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-09-25 10:02:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-09-25 10:02:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:02:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-09-25 10:02:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:02:59,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:03:00,004 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:00,077 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-09-25 10:03:00,077 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-09-25 10:03:00,129 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:00,367 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-09-25 10:03:00,368 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-09-25 10:03:00,370 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:00,420 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 10:03:00,421 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 10:03:00,427 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:00,486 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-09-25 10:03:00,486 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-09-25 10:03:00,672 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:00,693 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-09-25 10:03:00,694 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-09-25 10:03:00,727 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:00,857 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-09-25 10:03:00,858 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-09-25 10:03:00,881 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:03:00,881 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 10:03:00,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:03:00 BoogieIcfgContainer [2020-09-25 10:03:00,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:03:00,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:03:00,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:03:00,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:03:00,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:02:58" (1/3) ... [2020-09-25 10:03:00,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de617e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:03:00, skipping insertion in model container [2020-09-25 10:03:00,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:02:59" (2/3) ... [2020-09-25 10:03:00,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de617e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:03:00, skipping insertion in model container [2020-09-25 10:03:00,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:03:00" (3/3) ... [2020-09-25 10:03:00,909 INFO L109 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-1.c [2020-09-25 10:03:00,922 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:03:00,935 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:03:00,958 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:03:01,005 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:03:01,005 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:03:01,005 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:03:01,005 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:03:01,006 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:03:01,006 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:03:01,006 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:03:01,006 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:03:01,057 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states. [2020-09-25 10:03:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 10:03:01,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:01,073 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 10:03:01,073 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:01,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:01,082 INFO L82 PathProgramCache]: Analyzing trace with hash 337662663, now seen corresponding path program 1 times [2020-09-25 10:03:01,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:01,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143388047] [2020-09-25 10:03:01,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:01,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:01,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:01,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:01,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:02,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:02,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:02,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:02,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 10:03:02,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:03:02,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1456 [2020-09-25 10:03:02,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:02,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-09-25 10:03:02,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 10:03:02,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:03:02,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:02,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:02,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:02,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:02,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:02,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:02,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:03:02,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:02,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:02,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:02,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:02,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:03,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:03,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:03,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:03,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:03,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 10:03:03,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:03,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:03,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:03,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 10:03:03,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:03,055 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 10:03:03,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [143388047] [2020-09-25 10:03:03,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:03,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:03:03,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981058471] [2020-09-25 10:03:03,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:03:03,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:03,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:03:03,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:03:03,089 INFO L87 Difference]: Start difference. First operand 666 states. Second operand 5 states. [2020-09-25 10:03:05,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:05,100 INFO L93 Difference]: Finished difference Result 1035 states and 1244 transitions. [2020-09-25 10:03:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:05,104 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-09-25 10:03:05,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:05,127 INFO L225 Difference]: With dead ends: 1035 [2020-09-25 10:03:05,128 INFO L226 Difference]: Without dead ends: 706 [2020-09-25 10:03:05,137 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 10:03:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-25 10:03:05,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 652. [2020-09-25 10:03:05,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2020-09-25 10:03:05,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 746 transitions. [2020-09-25 10:03:05,248 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 746 transitions. Word has length 85 [2020-09-25 10:03:05,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:05,251 INFO L479 AbstractCegarLoop]: Abstraction has 652 states and 746 transitions. [2020-09-25 10:03:05,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:03:05,252 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 746 transitions. [2020-09-25 10:03:05,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 10:03:05,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:05,258 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 10:03:05,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:03:05,259 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:05,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1711200696, now seen corresponding path program 1 times [2020-09-25 10:03:05,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:05,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59234864] [2020-09-25 10:03:05,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:05,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:05,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:05,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 10:03:05,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:05,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-09-25 10:03:05,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:05,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:03:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-09-25 10:03:05,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 10:03:05,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:05,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:05,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:05,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:05,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:05,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:05,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:03:05,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:05,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:05,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:05,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:05,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:03:05,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:05,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:06,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:06,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:06,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:06,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:03:06,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:06,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:06,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:06,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:06,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:06,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:03:06,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:06,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:06,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:06,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:06,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:06,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:06,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:06,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:06,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 10:03:06,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:06,158 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 10:03:06,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59234864] [2020-09-25 10:03:06,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:06,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:03:06,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461885298] [2020-09-25 10:03:06,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:03:06,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:06,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:03:06,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:03:06,164 INFO L87 Difference]: Start difference. First operand 652 states and 746 transitions. Second operand 6 states. [2020-09-25 10:03:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:08,143 INFO L93 Difference]: Finished difference Result 967 states and 1119 transitions. [2020-09-25 10:03:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:03:08,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2020-09-25 10:03:08,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:08,151 INFO L225 Difference]: With dead ends: 967 [2020-09-25 10:03:08,151 INFO L226 Difference]: Without dead ends: 879 [2020-09-25 10:03:08,153 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 10:03:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-09-25 10:03:08,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 803. [2020-09-25 10:03:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-09-25 10:03:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 913 transitions. [2020-09-25 10:03:08,210 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 913 transitions. Word has length 136 [2020-09-25 10:03:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:08,211 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 913 transitions. [2020-09-25 10:03:08,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:03:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 913 transitions. [2020-09-25 10:03:08,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 10:03:08,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:08,219 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 10:03:08,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:03:08,220 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:08,220 INFO L82 PathProgramCache]: Analyzing trace with hash -472111805, now seen corresponding path program 1 times [2020-09-25 10:03:08,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:08,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [877868834] [2020-09-25 10:03:08,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:08,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:08,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:03:08,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 10:03:08,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:08,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-09-25 10:03:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 10:03:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:08,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:08,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:08,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:08,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:08,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:08,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:03:08,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:08,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:08,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:08,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:08,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:08,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:08,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:08,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:08,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:03:08,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:08,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:08,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:08,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:08,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:08,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:08,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:03:08,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:08,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:08,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:08,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:03:08,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:08,892 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 10:03:08,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [877868834] [2020-09-25 10:03:08,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:08,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:03:08,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734328088] [2020-09-25 10:03:08,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:03:08,896 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:08,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:03:08,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:03:08,897 INFO L87 Difference]: Start difference. First operand 803 states and 913 transitions. Second operand 6 states. [2020-09-25 10:03:10,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:10,359 INFO L93 Difference]: Finished difference Result 1124 states and 1281 transitions. [2020-09-25 10:03:10,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:03:10,360 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-25 10:03:10,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:10,366 INFO L225 Difference]: With dead ends: 1124 [2020-09-25 10:03:10,366 INFO L226 Difference]: Without dead ends: 901 [2020-09-25 10:03:10,367 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 10:03:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2020-09-25 10:03:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 878. [2020-09-25 10:03:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-25 10:03:10,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 999 transitions. [2020-09-25 10:03:10,408 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 999 transitions. Word has length 158 [2020-09-25 10:03:10,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:10,409 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 999 transitions. [2020-09-25 10:03:10,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:03:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 999 transitions. [2020-09-25 10:03:10,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 10:03:10,413 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:10,413 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 10:03:10,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:03:10,413 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:10,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:10,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1225477396, now seen corresponding path program 1 times [2020-09-25 10:03:10,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:10,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775691944] [2020-09-25 10:03:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:10,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:10,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:10,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:03:10,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:10,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-09-25 10:03:10,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:10,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:10,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:10,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 10:03:10,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:03:10,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:10,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:10,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:10,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:10,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:10,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:10,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:03:10,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:10,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:10,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:10,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:10,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:10,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:11,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:11,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:11,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 10:03:11,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:11,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:11,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:11,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:11,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:03:11,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:11,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:11,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:11,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:11,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:11,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:11,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:11,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:11,097 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 10:03:11,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775691944] [2020-09-25 10:03:11,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:11,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:03:11,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046780010] [2020-09-25 10:03:11,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:03:11,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:11,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:03:11,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:03:11,105 INFO L87 Difference]: Start difference. First operand 878 states and 999 transitions. Second operand 6 states. [2020-09-25 10:03:12,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:12,789 INFO L93 Difference]: Finished difference Result 882 states and 1002 transitions. [2020-09-25 10:03:12,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:03:12,789 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 10:03:12,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:12,795 INFO L225 Difference]: With dead ends: 882 [2020-09-25 10:03:12,796 INFO L226 Difference]: Without dead ends: 878 [2020-09-25 10:03:12,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:03:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-09-25 10:03:12,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 877. [2020-09-25 10:03:12,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-09-25 10:03:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 996 transitions. [2020-09-25 10:03:12,833 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 996 transitions. Word has length 162 [2020-09-25 10:03:12,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:12,833 INFO L479 AbstractCegarLoop]: Abstraction has 877 states and 996 transitions. [2020-09-25 10:03:12,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:03:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 996 transitions. [2020-09-25 10:03:12,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 10:03:12,837 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:12,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:12,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:03:12,838 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:12,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:12,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1858696707, now seen corresponding path program 1 times [2020-09-25 10:03:12,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:12,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [229612189] [2020-09-25 10:03:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:12,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:13,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:13,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:14,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:16,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:16,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 10:03:16,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:16,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3216 [2020-09-25 10:03:16,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:16,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-09-25 10:03:16,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-09-25 10:03:16,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:16,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:16,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:16,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:03:16,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:16,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:16,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:16,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:16,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:16,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:16,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:16,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:16,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:16,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 10:03:16,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:16,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:16,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:16,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:16,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:03:16,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:16,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:16,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:16,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:16,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:16,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:16,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:03:16,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:16,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:16,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:03:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:16,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 10:03:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:16,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:16,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:16,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 10:03:16,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:16,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 10:03:16,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:16,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:16,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:16,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:03:16,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:16,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 10:03:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:16,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:16,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:16,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 10:03:16,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 10:03:16,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:16,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:16,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:16,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 10:03:16,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:16,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 10:03:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:16,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:16,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:16,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:16,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:03:16,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:16,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:16,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 10:03:16,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:16,709 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 10:03:16,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [229612189] [2020-09-25 10:03:16,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:16,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 10:03:16,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746587171] [2020-09-25 10:03:16,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:03:16,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:16,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:03:16,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:03:16,712 INFO L87 Difference]: Start difference. First operand 877 states and 996 transitions. Second operand 12 states. [2020-09-25 10:03:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:19,999 INFO L93 Difference]: Finished difference Result 1005 states and 1141 transitions. [2020-09-25 10:03:19,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 10:03:19,999 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2020-09-25 10:03:20,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:20,006 INFO L225 Difference]: With dead ends: 1005 [2020-09-25 10:03:20,006 INFO L226 Difference]: Without dead ends: 999 [2020-09-25 10:03:20,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:03:20,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2020-09-25 10:03:20,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 942. [2020-09-25 10:03:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 942 states. [2020-09-25 10:03:20,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1068 transitions. [2020-09-25 10:03:20,071 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1068 transitions. Word has length 187 [2020-09-25 10:03:20,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:20,072 INFO L479 AbstractCegarLoop]: Abstraction has 942 states and 1068 transitions. [2020-09-25 10:03:20,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 10:03:20,072 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1068 transitions. [2020-09-25 10:03:20,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 10:03:20,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:20,076 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] [2020-09-25 10:03:20,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:03:20,077 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:20,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:20,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1405511328, now seen corresponding path program 1 times [2020-09-25 10:03:20,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:20,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762514493] [2020-09-25 10:03:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:20,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:20,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:20,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:21,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 10:03:21,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1351 [2020-09-25 10:03:21,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:21,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:21,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:21,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 10:03:21,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-25 10:03:21,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:21,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:21,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:21,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:21,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:21,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:21,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:21,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:21,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:21,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:21,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:21,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:21,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:21,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:21,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:03:21,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:21,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:21,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:21,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:21,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:21,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:21,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:21,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:21,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:21,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:21,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:21,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:21,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:03:21,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:21,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-09-25 10:03:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:21,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:21,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 10:03:21,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:21,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 10:03:21,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:21,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:21,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:21,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:21,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:03:21,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:21,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 10:03:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:21,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:21,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 10:03:21,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:03:21,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:21,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:21,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:21,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 10:03:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:21,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:21,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:21,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:21,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:03:21,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:21,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:21,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:21,932 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 10:03:21,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762514493] [2020-09-25 10:03:21,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:21,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:03:21,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938302369] [2020-09-25 10:03:21,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:03:21,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:21,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:03:21,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:03:21,938 INFO L87 Difference]: Start difference. First operand 942 states and 1068 transitions. Second operand 8 states. [2020-09-25 10:03:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:23,525 INFO L93 Difference]: Finished difference Result 956 states and 1085 transitions. [2020-09-25 10:03:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:03:23,526 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 188 [2020-09-25 10:03:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:23,530 INFO L225 Difference]: With dead ends: 956 [2020-09-25 10:03:23,530 INFO L226 Difference]: Without dead ends: 364 [2020-09-25 10:03:23,532 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 10:03:23,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-09-25 10:03:23,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 307. [2020-09-25 10:03:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-25 10:03:23,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 324 transitions. [2020-09-25 10:03:23,547 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 324 transitions. Word has length 188 [2020-09-25 10:03:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:23,548 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 324 transitions. [2020-09-25 10:03:23,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:03:23,548 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 324 transitions. [2020-09-25 10:03:23,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-25 10:03:23,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:23,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:23,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:03:23,551 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:23,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:23,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1820316512, now seen corresponding path program 1 times [2020-09-25 10:03:23,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:23,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505903014] [2020-09-25 10:03:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:23,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:23,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:24,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:24,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-25 10:03:24,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:24,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 784 [2020-09-25 10:03:24,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:24,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 10:03:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:03:24,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:24,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:24,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:24,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:24,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:24,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:24,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:03:24,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:24,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:24,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:24,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:24,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:24,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:24,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:24,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:24,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:03:24,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:24,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:24,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:24,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:24,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:24,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:24,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:24,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:24,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:03:24,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:24,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:24,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:24,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:24,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 10:03:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:24,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:24,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:24,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:24,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:24,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:03:24,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:24,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:03:24,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:03:24,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:24,639 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 10:03:24,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505903014] [2020-09-25 10:03:24,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:24,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:03:24,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394350897] [2020-09-25 10:03:24,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:03:24,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:24,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:03:24,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:03:24,643 INFO L87 Difference]: Start difference. First operand 307 states and 324 transitions. Second operand 8 states. [2020-09-25 10:03:25,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:25,542 INFO L93 Difference]: Finished difference Result 368 states and 392 transitions. [2020-09-25 10:03:25,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 10:03:25,544 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 197 [2020-09-25 10:03:25,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:25,546 INFO L225 Difference]: With dead ends: 368 [2020-09-25 10:03:25,546 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 10:03:25,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:03:25,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 10:03:25,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2020-09-25 10:03:25,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-09-25 10:03:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 323 transitions. [2020-09-25 10:03:25,564 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 323 transitions. Word has length 197 [2020-09-25 10:03:25,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:25,564 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 323 transitions. [2020-09-25 10:03:25,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:03:25,564 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 323 transitions. [2020-09-25 10:03:25,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 10:03:25,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:25,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:25,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:03:25,567 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:25,568 INFO L82 PathProgramCache]: Analyzing trace with hash 667967814, now seen corresponding path program 1 times [2020-09-25 10:03:25,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:25,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106917087] [2020-09-25 10:03:25,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:25,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:25,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:25,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 10:03:25,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:25,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 10:03:25,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:25,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 220 [2020-09-25 10:03:25,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:03:25,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:25,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:25,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:25,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:25,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:25,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:25,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:25,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:25,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:25,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:25,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:25,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:26,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:26,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:26,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:03:26,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:26,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:26,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:26,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:26,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:26,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:26,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:26,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:26,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:26,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:26,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:26,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:26,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:26,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-09-25 10:03:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:26,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:03:26,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:26,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:03:26,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:26,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:26,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:03:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:26,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:03:26,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:26,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:03:26,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:26,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:26,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:26,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:26,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:26,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 10:03:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:26,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:03:26,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:26,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:03:26,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:26,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:26,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:03:26,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:26,135 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 10:03:26,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1106917087] [2020-09-25 10:03:26,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:26,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:03:26,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415306028] [2020-09-25 10:03:26,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:03:26,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:26,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:03:26,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:03:26,138 INFO L87 Difference]: Start difference. First operand 307 states and 323 transitions. Second operand 8 states. [2020-09-25 10:03:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:26,527 INFO L93 Difference]: Finished difference Result 353 states and 374 transitions. [2020-09-25 10:03:26,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:03:26,528 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-09-25 10:03:26,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:26,530 INFO L225 Difference]: With dead ends: 353 [2020-09-25 10:03:26,530 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 10:03:26,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:03:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 10:03:26,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 303. [2020-09-25 10:03:26,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-09-25 10:03:26,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 317 transitions. [2020-09-25 10:03:26,544 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 317 transitions. Word has length 213 [2020-09-25 10:03:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:26,544 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 317 transitions. [2020-09-25 10:03:26,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:03:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 317 transitions. [2020-09-25 10:03:26,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 10:03:26,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:26,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:26,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:03:26,548 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:26,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:26,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1190108144, now seen corresponding path program 1 times [2020-09-25 10:03:26,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:26,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747761958] [2020-09-25 10:03:26,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:26,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:29,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-25 10:03:29,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:29,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2490 [2020-09-25 10:03:29,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:29,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 221 [2020-09-25 10:03:29,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:03:29,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:29,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:29,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:29,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:29,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:29,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:29,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:29,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:29,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:29,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:29,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:29,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:29,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:29,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:29,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:03:29,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:29,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:29,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:29,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:29,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:29,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:29,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:29,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:29,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:29,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:29,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 10:03:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:29,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 10:03:29,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:29,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-09-25 10:03:29,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:29,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:29,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:29,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 10:03:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:29,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 10:03:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:29,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:29,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:03:29,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:03:29,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:29,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:29,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:29,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:29,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:03:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:29,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:29,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:03:29,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:29,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:29,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:29,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:29,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:29,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:29,622 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 10:03:29,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747761958] [2020-09-25 10:03:29,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:29,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 10:03:29,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645745764] [2020-09-25 10:03:29,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:03:29,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:29,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:03:29,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:03:29,630 INFO L87 Difference]: Start difference. First operand 303 states and 317 transitions. Second operand 11 states. [2020-09-25 10:03:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:30,374 INFO L93 Difference]: Finished difference Result 387 states and 412 transitions. [2020-09-25 10:03:30,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:03:30,375 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 224 [2020-09-25 10:03:30,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:30,377 INFO L225 Difference]: With dead ends: 387 [2020-09-25 10:03:30,377 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 10:03:30,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-09-25 10:03:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 10:03:30,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 321. [2020-09-25 10:03:30,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 10:03:30,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 338 transitions. [2020-09-25 10:03:30,394 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 338 transitions. Word has length 224 [2020-09-25 10:03:30,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:30,394 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 338 transitions. [2020-09-25 10:03:30,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:03:30,395 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 338 transitions. [2020-09-25 10:03:30,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 10:03:30,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:30,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:30,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 10:03:30,400 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:30,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:30,401 INFO L82 PathProgramCache]: Analyzing trace with hash 149463484, now seen corresponding path program 1 times [2020-09-25 10:03:30,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:30,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178172694] [2020-09-25 10:03:30,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:30,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:35,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 10:03:35,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:35,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 10:03:35,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:35,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:03:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 10:03:35,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-09-25 10:03:35,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:35,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:35,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:35,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:35,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:35,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:03:35,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:35,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:35,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:35,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:35,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:35,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:35,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 10:03:35,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:35,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:35,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:35,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:03:35,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:35,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:35,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:35,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:35,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:35,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:35,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:35,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:03:35,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:35,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 10:03:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:35,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 10:03:36,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:36,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 10:03:36,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:36,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 10:03:36,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:36,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 10:03:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:36,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:03:36,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:36,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:03:36,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:36,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:36,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:03:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:36,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:03:36,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:36,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:36,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:36,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:36,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:36,172 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 10:03:36,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178172694] [2020-09-25 10:03:36,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:36,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 10:03:36,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30519486] [2020-09-25 10:03:36,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 10:03:36,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:36,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 10:03:36,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-09-25 10:03:36,174 INFO L87 Difference]: Start difference. First operand 321 states and 338 transitions. Second operand 12 states. [2020-09-25 10:03:36,967 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2020-09-25 10:03:37,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:37,227 INFO L93 Difference]: Finished difference Result 416 states and 444 transitions. [2020-09-25 10:03:37,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 10:03:37,228 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 225 [2020-09-25 10:03:37,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:37,231 INFO L225 Difference]: With dead ends: 416 [2020-09-25 10:03:37,231 INFO L226 Difference]: Without dead ends: 381 [2020-09-25 10:03:37,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2020-09-25 10:03:37,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-09-25 10:03:37,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 349. [2020-09-25 10:03:37,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-25 10:03:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 367 transitions. [2020-09-25 10:03:37,248 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 367 transitions. Word has length 225 [2020-09-25 10:03:37,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:37,249 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 367 transitions. [2020-09-25 10:03:37,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 10:03:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 367 transitions. [2020-09-25 10:03:37,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-25 10:03:37,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:37,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:37,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 10:03:37,252 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:37,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:37,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1227578766, now seen corresponding path program 1 times [2020-09-25 10:03:37,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:37,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024277586] [2020-09-25 10:03:37,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:37,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-25 10:03:39,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:39,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1746 [2020-09-25 10:03:39,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-25 10:03:39,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-09-25 10:03:39,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:39,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:39,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:39,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:39,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:39,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:39,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:03:39,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:39,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:39,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-25 10:03:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:39,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:39,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:39,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:39,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:03:39,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:39,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 10:03:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 10:03:39,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:39,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 10:03:39,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 10:03:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:39,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 10:03:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:03:39,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:39,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:03:39,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:39,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:39,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:03:39,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:03:39,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:39,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:39,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:39,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:39,483 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 10:03:39,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024277586] [2020-09-25 10:03:39,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:39,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:03:39,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472960169] [2020-09-25 10:03:39,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:03:39,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:39,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:03:39,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:03:39,485 INFO L87 Difference]: Start difference. First operand 349 states and 367 transitions. Second operand 8 states. [2020-09-25 10:03:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:40,171 INFO L93 Difference]: Finished difference Result 612 states and 646 transitions. [2020-09-25 10:03:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:03:40,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 225 [2020-09-25 10:03:40,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:40,175 INFO L225 Difference]: With dead ends: 612 [2020-09-25 10:03:40,175 INFO L226 Difference]: Without dead ends: 602 [2020-09-25 10:03:40,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:03:40,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-09-25 10:03:40,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 582. [2020-09-25 10:03:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2020-09-25 10:03:40,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 617 transitions. [2020-09-25 10:03:40,203 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 617 transitions. Word has length 225 [2020-09-25 10:03:40,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:40,204 INFO L479 AbstractCegarLoop]: Abstraction has 582 states and 617 transitions. [2020-09-25 10:03:40,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:03:40,204 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 617 transitions. [2020-09-25 10:03:40,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-09-25 10:03:40,207 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:40,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:40,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 10:03:40,208 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:40,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:40,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1031480085, now seen corresponding path program 1 times [2020-09-25 10:03:40,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:40,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299678254] [2020-09-25 10:03:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:40,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-25 10:03:40,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:40,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 410 [2020-09-25 10:03:40,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:40,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-25 10:03:40,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:03:40,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:40,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:40,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:40,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:40,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:40,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:40,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:40,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:40,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:40,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:40,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:40,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:40,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:40,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:40,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:40,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:40,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:03:40,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:40,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:40,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:40,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:40,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:03:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:40,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:40,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:40,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:40,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:40,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:40,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:40,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:40,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 10:03:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:40,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:40,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:03:40,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:40,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 10:03:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:40,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:40,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:03:40,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:40,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:03:40,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:40,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:40,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 10:03:40,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:41,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:03:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:41,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:41,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:41,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:03:41,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:41,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:41,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:41,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:41,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:41,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:41,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:41,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:41,039 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 10:03:41,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299678254] [2020-09-25 10:03:41,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:41,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 10:03:41,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393272999] [2020-09-25 10:03:41,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:03:41,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:41,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:03:41,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:03:41,041 INFO L87 Difference]: Start difference. First operand 582 states and 617 transitions. Second operand 11 states. [2020-09-25 10:03:41,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:41,726 INFO L93 Difference]: Finished difference Result 687 states and 732 transitions. [2020-09-25 10:03:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:03:41,727 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 227 [2020-09-25 10:03:41,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:41,729 INFO L225 Difference]: With dead ends: 687 [2020-09-25 10:03:41,729 INFO L226 Difference]: Without dead ends: 552 [2020-09-25 10:03:41,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:03:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-09-25 10:03:41,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2020-09-25 10:03:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-09-25 10:03:41,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 581 transitions. [2020-09-25 10:03:41,753 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 581 transitions. Word has length 227 [2020-09-25 10:03:41,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:41,753 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 581 transitions. [2020-09-25 10:03:41,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:03:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 581 transitions. [2020-09-25 10:03:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 10:03:41,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:41,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:41,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 10:03:41,756 INFO L427 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:41,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:41,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1776023437, now seen corresponding path program 1 times [2020-09-25 10:03:41,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:41,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946733481] [2020-09-25 10:03:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:41,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 10:03:42,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-25 10:03:42,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:42,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 10:03:42,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-09-25 10:03:42,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:42,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:42,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:03:42,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:03:42,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:42,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:42,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:42,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:42,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-25 10:03:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:42,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 10:03:42,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 10:03:42,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:42,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:03:42,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:42,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 10:03:42,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:42,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:03:42,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:03:42,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:42,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 10:03:42,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:42,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 10:03:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:42,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 10:03:42,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 10:03:42,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-09-25 10:03:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 10:03:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:42,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 10:03:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:42,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 10:03:42,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:03:42,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:42,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:42,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:42,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:03:42,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:42,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 10:03:42,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:42,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:42,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 10:03:42,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:42,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:42,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:03:42,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:42,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:42,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:42,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:42,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 10:03:42,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:42,586 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 10:03:42,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946733481] [2020-09-25 10:03:42,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:42,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 10:03:42,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831167720] [2020-09-25 10:03:42,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:03:42,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:42,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:03:42,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:03:42,588 INFO L87 Difference]: Start difference. First operand 552 states and 581 transitions. Second operand 13 states. [2020-09-25 10:03:43,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:43,607 INFO L93 Difference]: Finished difference Result 573 states and 604 transitions. [2020-09-25 10:03:43,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 10:03:43,608 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 232 [2020-09-25 10:03:43,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:43,611 INFO L225 Difference]: With dead ends: 573 [2020-09-25 10:03:43,611 INFO L226 Difference]: Without dead ends: 468 [2020-09-25 10:03:43,612 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:03:43,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-09-25 10:03:43,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2020-09-25 10:03:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-09-25 10:03:43,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 485 transitions. [2020-09-25 10:03:43,632 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 485 transitions. Word has length 232 [2020-09-25 10:03:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:43,633 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 485 transitions. [2020-09-25 10:03:43,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:03:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 485 transitions. [2020-09-25 10:03:43,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-25 10:03:43,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:43,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:43,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 10:03:43,635 INFO L427 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:43,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:43,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1909428757, now seen corresponding path program 1 times [2020-09-25 10:03:43,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:43,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844503090] [2020-09-25 10:03:43,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:43,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:48,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:48,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 10:03:48,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:48,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 10:03:48,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:48,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:03:48,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 10:03:48,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-09-25 10:03:48,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:03:48,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat