/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:38:40,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:38:40,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:38:41,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:38:41,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:38:41,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:38:41,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:38:41,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:38:41,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:38:41,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:38:41,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:38:41,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:38:41,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:38:41,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:38:41,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:38:41,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:38:41,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:38:41,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:38:41,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:38:41,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:38:41,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:38:41,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:38:41,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:38:41,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:38:41,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:38:41,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:38:41,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:38:41,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:38:41,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:38:41,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:38:41,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:38:41,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:38:41,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:38:41,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:38:41,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:38:41,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:38:41,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:38:41,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:38:41,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:38:41,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:38:41,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:38:41,061 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 08:38:41,102 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:38:41,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:38:41,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:38:41,106 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:38:41,106 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:38:41,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:38:41,106 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:38:41,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:38:41,107 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:38:41,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:38:41,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:38:41,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:38:41,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:38:41,109 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:38:41,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:38:41,110 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:38:41,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:38:41,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:38:41,111 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:38:41,111 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:38:41,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:38:41,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:38:41,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:38:41,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:38:41,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:38:41,113 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:38:41,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:38:41,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:38:41,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:38:41,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:38:41,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:38:41,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:38:41,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:38:41,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:38:41,590 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:38:41,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c [2020-09-25 08:38:41,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d665b922b/229eb665a5a04a5fa78b6e804a266c92/FLAG44e9bbaa8 [2020-09-25 08:38:42,335 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:38:42,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product27.cil.c [2020-09-25 08:38:42,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d665b922b/229eb665a5a04a5fa78b6e804a266c92/FLAG44e9bbaa8 [2020-09-25 08:38:42,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d665b922b/229eb665a5a04a5fa78b6e804a266c92 [2020-09-25 08:38:42,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:38:42,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:38:42,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:38:42,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:38:42,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:38:42,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:42" (1/1) ... [2020-09-25 08:38:42,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:42, skipping insertion in model container [2020-09-25 08:38:42,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:38:42" (1/1) ... [2020-09-25 08:38:42,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:38:42,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:38:43,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:38:43,182 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:38:43,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:38:43,326 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:38:43,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43 WrapperNode [2020-09-25 08:38:43,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:38:43,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:38:43,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:38:43,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:38:43,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... [2020-09-25 08:38:43,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... [2020-09-25 08:38:43,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... [2020-09-25 08:38:43,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... [2020-09-25 08:38:43,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... [2020-09-25 08:38:43,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... [2020-09-25 08:38:43,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... [2020-09-25 08:38:43,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:38:43,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:38:43,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:38:43,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:38:43,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:38:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:38:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:38:43,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:38:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:38:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:38:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:38:43,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:38:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:38:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:38:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:38:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:38:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:38:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:38:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:38:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:38:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:38:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:38:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 08:38:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:38:43,577 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:38:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:38:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:38:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:38:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:38:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:38:43,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:38:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:38:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:38:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:38:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:38:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:38:43,579 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:38:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:38:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:38:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:38:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:38:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:38:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 08:38:43,580 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:38:43,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:38:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:38:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:38:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:38:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:38:43,581 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:38:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:38:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:38:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:38:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:38:43,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:38:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:38:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:38:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:38:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:38:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:38:43,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:38:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:38:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:38:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:38:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:38:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:38:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:38:43,584 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:38:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:38:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:38:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:38:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:38:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:38:43,585 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:38:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:38:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 08:38:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:38:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:38:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:38:43,586 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:38:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:38:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:38:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:38:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:38:43,587 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:38:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:38:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:38:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:38:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:38:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:38:43,588 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:38:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:38:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:38:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 08:38:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 08:38:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:38:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:38:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:38:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:38:44,821 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:38:44,822 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:38:44,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:44 BoogieIcfgContainer [2020-09-25 08:38:44,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:38:44,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:38:44,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:38:44,835 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:38:44,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:38:42" (1/3) ... [2020-09-25 08:38:44,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33feea1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:44, skipping insertion in model container [2020-09-25 08:38:44,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:38:43" (2/3) ... [2020-09-25 08:38:44,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33feea1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:38:44, skipping insertion in model container [2020-09-25 08:38:44,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:38:44" (3/3) ... [2020-09-25 08:38:44,839 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product27.cil.c [2020-09-25 08:38:44,851 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:38:44,863 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:38:44,885 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:38:44,916 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:38:44,916 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:38:44,916 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:38:44,917 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:38:44,917 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:38:44,917 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:38:44,917 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:38:44,917 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:38:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-25 08:38:44,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:38:44,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:44,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:38:44,967 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:44,975 INFO L82 PathProgramCache]: Analyzing trace with hash -814474831, now seen corresponding path program 1 times [2020-09-25 08:38:44,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:44,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861011227] [2020-09-25 08:38:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:45,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:47,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:48,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:48,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:50,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:50,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:38:50,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:38:50,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 08:38:50,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:50,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:38:50,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:50,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 08:38:50,992 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:50,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:51,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 08:38:51,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:51,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:51,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:51,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:51,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:51,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:51,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:51,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:51,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:51,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:51,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:38:51,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:51,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:51,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:51,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:51,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:51,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:38:51,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:51,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:51,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:51,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:51,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:38:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:51,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:38:51,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:51,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:51,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:38:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:51,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:51,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:51,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:51,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:51,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:51,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:51,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:51,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:51,366 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 08:38:51,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861011227] [2020-09-25 08:38:51,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:51,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:38:51,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023503380] [2020-09-25 08:38:51,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:38:51,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:51,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:38:51,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:51,442 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 4 states. [2020-09-25 08:38:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:38:52,612 INFO L93 Difference]: Finished difference Result 441 states and 525 transitions. [2020-09-25 08:38:52,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:38:52,614 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:38:52,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:38:52,636 INFO L225 Difference]: With dead ends: 441 [2020-09-25 08:38:52,636 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 08:38:52,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:38:52,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 08:38:52,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 239. [2020-09-25 08:38:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-09-25 08:38:52,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 259 transitions. [2020-09-25 08:38:52,767 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 259 transitions. Word has length 148 [2020-09-25 08:38:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:38:52,770 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 259 transitions. [2020-09-25 08:38:52,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:38:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 259 transitions. [2020-09-25 08:38:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:38:52,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:38:52,782 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] [2020-09-25 08:38:52,783 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:38:52,783 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:38:52,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:38:52,783 INFO L82 PathProgramCache]: Analyzing trace with hash 350182576, now seen corresponding path program 1 times [2020-09-25 08:38:52,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:38:52,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [890008530] [2020-09-25 08:38:52,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:38:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:52,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:53,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:54,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:55,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:55,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:57,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:57,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:57,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:38:57,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:38:57,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-09-25 08:38:57,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:57,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:38:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:38:57,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:38:57,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,256 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:38:58,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:38:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:38:58,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:38:58,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:58,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:38:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:58,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:58,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:58,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:38:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:58,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:58,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:58,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:38:58,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:58,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:38:58,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:58,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:38:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:38:58,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:58,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:58,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:38:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:38:58,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:38:58,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:38:58,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:38:58,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:38:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:58,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:58,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:58,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:38:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:38:58,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:38:58,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:38:58,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:38:58,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:38:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:38:58,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:38:58,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:38:58,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:38:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:38:58,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:38:58,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:38:58,534 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 08:38:58,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [890008530] [2020-09-25 08:38:58,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:38:58,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:38:58,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274806847] [2020-09-25 08:38:58,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:38:58,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:38:58,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:38:58,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:38:58,539 INFO L87 Difference]: Start difference. First operand 239 states and 259 transitions. Second operand 5 states. [2020-09-25 08:38:59,217 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:39:00,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:00,138 INFO L93 Difference]: Finished difference Result 364 states and 412 transitions. [2020-09-25 08:39:00,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:39:00,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:39:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:00,147 INFO L225 Difference]: With dead ends: 364 [2020-09-25 08:39:00,147 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 08:39:00,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:39:00,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 08:39:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 229. [2020-09-25 08:39:00,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-09-25 08:39:00,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 246 transitions. [2020-09-25 08:39:00,244 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 246 transitions. Word has length 149 [2020-09-25 08:39:00,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:00,247 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 246 transitions. [2020-09-25 08:39:00,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:39:00,248 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 246 transitions. [2020-09-25 08:39:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 08:39:00,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:00,253 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 08:39:00,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:39:00,254 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:00,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1011133408, now seen corresponding path program 1 times [2020-09-25 08:39:00,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:00,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680376058] [2020-09-25 08:39:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:00,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:00,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:01,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:03,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:05,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:05,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 08:39:05,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:39:05,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 08:39:05,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:05,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:05,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:39:05,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 08:39:05,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 08:39:05,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:05,759 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:05,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:05,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:06,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 08:39:06,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:06,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:39:06,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:06,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:06,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:06,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:06,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:06,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:06,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:06,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:06,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:06,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:06,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:06,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:06,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:06,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:39:06,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:06,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:06,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:06,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:06,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:06,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:06,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:06,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:06,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:06,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:06,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:06,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:39:06,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:06,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:39:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:06,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:39:06,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:39:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:06,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:06,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:06,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 08:39:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:06,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:06,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:06,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:06,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:06,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:06,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:06,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:06,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:06,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:06,197 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 08:39:06,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680376058] [2020-09-25 08:39:06,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:06,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:39:06,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976609611] [2020-09-25 08:39:06,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:39:06,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:06,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:39:06,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:39:06,200 INFO L87 Difference]: Start difference. First operand 229 states and 246 transitions. Second operand 9 states. [2020-09-25 08:39:06,764 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:08,280 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:08,571 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:39:08,979 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:09,315 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:09,592 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 08:39:09,954 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:10,277 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:39:10,765 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:39:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:11,578 INFO L93 Difference]: Finished difference Result 508 states and 595 transitions. [2020-09-25 08:39:11,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 08:39:11,578 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-25 08:39:11,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:11,583 INFO L225 Difference]: With dead ends: 508 [2020-09-25 08:39:11,583 INFO L226 Difference]: Without dead ends: 394 [2020-09-25 08:39:11,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 08:39:11,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-09-25 08:39:11,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 325. [2020-09-25 08:39:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-09-25 08:39:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 357 transitions. [2020-09-25 08:39:11,639 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 357 transitions. Word has length 158 [2020-09-25 08:39:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:11,640 INFO L479 AbstractCegarLoop]: Abstraction has 325 states and 357 transitions. [2020-09-25 08:39:11,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:39:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 357 transitions. [2020-09-25 08:39:11,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 08:39:11,643 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:11,643 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] [2020-09-25 08:39:11,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:39:11,643 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:11,644 INFO L82 PathProgramCache]: Analyzing trace with hash -205614873, now seen corresponding path program 1 times [2020-09-25 08:39:11,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:11,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439713331] [2020-09-25 08:39:11,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:11,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:12,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:12,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:13,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:16,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:16,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 08:39:16,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:39:16,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 08:39:16,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:16,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:16,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:39:16,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 08:39:16,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:39:16,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:17,042 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:17,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:17,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 08:39:17,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 08:39:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:17,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:17,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:17,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:17,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:17,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:17,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:17,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:17,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:39:17,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:17,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:17,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:17,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:39:17,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:17,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:39:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:39:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:39:17,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:39:17,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:39:17,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 08:39:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 08:39:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:17,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:17,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:17,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:17,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:17,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:17,489 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 08:39:17,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439713331] [2020-09-25 08:39:17,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:17,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:39:17,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280696818] [2020-09-25 08:39:17,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:39:17,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:17,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:39:17,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:39:17,492 INFO L87 Difference]: Start difference. First operand 325 states and 357 transitions. Second operand 6 states. [2020-09-25 08:39:18,020 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:19,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:19,881 INFO L93 Difference]: Finished difference Result 874 states and 1033 transitions. [2020-09-25 08:39:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:39:19,882 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-09-25 08:39:19,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:19,888 INFO L225 Difference]: With dead ends: 874 [2020-09-25 08:39:19,888 INFO L226 Difference]: Without dead ends: 664 [2020-09-25 08:39:19,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:39:19,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2020-09-25 08:39:19,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 526. [2020-09-25 08:39:19,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-09-25 08:39:19,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 591 transitions. [2020-09-25 08:39:19,967 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 591 transitions. Word has length 163 [2020-09-25 08:39:19,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:19,967 INFO L479 AbstractCegarLoop]: Abstraction has 526 states and 591 transitions. [2020-09-25 08:39:19,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:39:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 591 transitions. [2020-09-25 08:39:19,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 08:39:19,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:19,971 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] [2020-09-25 08:39:19,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:39:19,971 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:19,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:19,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1322428812, now seen corresponding path program 1 times [2020-09-25 08:39:19,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:19,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607540769] [2020-09-25 08:39:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:20,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:20,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:20,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:22,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 08:39:25,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:39:25,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 08:39:25,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:39:25,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:39:25,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 08:39:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:25,382 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:25,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:25,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 08:39:25,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:25,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:25,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:25,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:25,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:25,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:25,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:25,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:25,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:25,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:25,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:25,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:25,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:25,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:25,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:25,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:25,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:25,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:25,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:25,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:25,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:39:25,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:25,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:39:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:39:25,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:39:25,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:25,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:39:25,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:25,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 08:39:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:39:25,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:25,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:39:25,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:39:25,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:39:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:25,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:25,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:25,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 08:39:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:25,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:25,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:25,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:25,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 08:39:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:25,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:25,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:25,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:25,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:25,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:39:25,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:25,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:25,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:39:25,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:25,638 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 08:39:25,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607540769] [2020-09-25 08:39:25,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:25,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:39:25,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129344349] [2020-09-25 08:39:25,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:39:25,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:25,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:39:25,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:39:25,641 INFO L87 Difference]: Start difference. First operand 526 states and 591 transitions. Second operand 7 states. [2020-09-25 08:39:26,229 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:39:28,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:28,650 INFO L93 Difference]: Finished difference Result 1463 states and 1901 transitions. [2020-09-25 08:39:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 08:39:28,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-25 08:39:28,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:28,661 INFO L225 Difference]: With dead ends: 1463 [2020-09-25 08:39:28,662 INFO L226 Difference]: Without dead ends: 1460 [2020-09-25 08:39:28,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:39:28,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2020-09-25 08:39:28,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 755. [2020-09-25 08:39:28,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-09-25 08:39:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 858 transitions. [2020-09-25 08:39:28,845 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 858 transitions. Word has length 171 [2020-09-25 08:39:28,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:28,845 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 858 transitions. [2020-09-25 08:39:28,846 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:39:28,846 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 858 transitions. [2020-09-25 08:39:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 08:39:28,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:28,851 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:28,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:39:28,851 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:28,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:28,852 INFO L82 PathProgramCache]: Analyzing trace with hash -887449225, now seen corresponding path program 1 times [2020-09-25 08:39:28,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:28,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1429517849] [2020-09-25 08:39:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:28,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:29,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:29,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:30,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking...