/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:30:35,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:30:35,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:30:35,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:30:35,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:30:35,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:30:35,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:30:35,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:30:35,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:30:35,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:30:35,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:30:35,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:30:35,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:30:35,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:30:35,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:30:35,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:30:35,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:30:35,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:30:35,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:30:35,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:30:35,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:30:35,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:30:35,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:30:35,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:30:35,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:30:35,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:30:35,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:30:35,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:30:35,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:30:35,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:30:35,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:30:35,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:30:35,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:30:35,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:30:35,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:30:35,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:30:35,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:30:35,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:30:35,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:30:35,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:30:35,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:30:35,323 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 07:30:35,351 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:30:35,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:30:35,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:30:35,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:30:35,354 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:30:35,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:30:35,355 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:30:35,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:30:35,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:30:35,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:30:35,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:30:35,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:30:35,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:30:35,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:30:35,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:30:35,358 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:30:35,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:30:35,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:30:35,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:30:35,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:30:35,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:30:35,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:30:35,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:30:35,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:30:35,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:30:35,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:30:35,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:30:35,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:30:35,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:30:35,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:30:35,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:30:35,848 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:30:35,855 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:30:35,857 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:30:35,858 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:30:35,859 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-09-25 07:30:35,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c1145629/934a9296ff54489999a2ab96705cd055/FLAG3897a3899 [2020-09-25 07:30:36,558 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:30:36,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product49.cil.c [2020-09-25 07:30:36,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c1145629/934a9296ff54489999a2ab96705cd055/FLAG3897a3899 [2020-09-25 07:30:36,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c1145629/934a9296ff54489999a2ab96705cd055 [2020-09-25 07:30:36,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:30:36,859 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:30:36,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:30:36,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:30:36,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:30:36,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:36" (1/1) ... [2020-09-25 07:30:36,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:36, skipping insertion in model container [2020-09-25 07:30:36,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:30:36" (1/1) ... [2020-09-25 07:30:36,887 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:30:36,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:30:37,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:30:37,448 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:30:37,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:30:37,600 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:30:37,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37 WrapperNode [2020-09-25 07:30:37,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:30:37,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:30:37,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:30:37,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:30:37,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (1/1) ... [2020-09-25 07:30:37,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (1/1) ... [2020-09-25 07:30:37,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (1/1) ... [2020-09-25 07:30:37,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (1/1) ... [2020-09-25 07:30:37,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (1/1) ... [2020-09-25 07:30:37,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (1/1) ... [2020-09-25 07:30:37,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (1/1) ... [2020-09-25 07:30:37,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:30:37,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:30:37,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:30:37,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:30:37,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (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 07:30:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:30:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:30:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:30:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:30:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:30:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:30:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:30:37,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:30:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:30:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:30:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:30:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:30:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:30:37,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:30:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:30:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:30:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:30:37,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:30:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:30:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:30:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:30:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:30:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:30:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:30:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:30:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:30:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:30:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:30:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:30:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:30:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:30:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:30:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:30:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:30:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:30:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:30:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:30:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:30:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:30:37,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:30:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:30:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:30:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:30:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:30:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:30:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:30:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:30:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:30:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:30:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:30:37,795 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:30:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:30:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:30:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:30:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:30:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:30:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:30:37,796 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:30:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:30:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:30:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:30:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:30:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:30:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:30:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:30:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:30:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:30:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:30:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:30:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:30:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:30:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:30:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:30:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 07:30:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:30:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:30:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:30:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:30:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:30:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:30:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:30:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:30:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:30:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:30:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:30:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:30:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:30:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:30:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:30:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:30:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:30:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:30:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:30:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:30:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:30:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:30:39,084 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:30:39,085 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:30:39,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:39 BoogieIcfgContainer [2020-09-25 07:30:39,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:30:39,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:30:39,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:30:39,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:30:39,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:30:36" (1/3) ... [2020-09-25 07:30:39,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5538132f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:39, skipping insertion in model container [2020-09-25 07:30:39,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:30:37" (2/3) ... [2020-09-25 07:30:39,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5538132f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:30:39, skipping insertion in model container [2020-09-25 07:30:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:30:39" (3/3) ... [2020-09-25 07:30:39,103 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product49.cil.c [2020-09-25 07:30:39,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:30:39,138 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:30:39,166 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:30:39,210 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:30:39,210 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:30:39,210 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:30:39,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:30:39,211 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:30:39,211 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:30:39,212 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:30:39,212 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:30:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-09-25 07:30:39,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:30:39,295 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:39,298 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 07:30:39,299 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:39,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:39,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1663481443, now seen corresponding path program 1 times [2020-09-25 07:30:39,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:39,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428399694] [2020-09-25 07:30:39,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:39,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:40,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:40,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:41,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:42,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:44,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:44,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:30:44,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:30:44,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-09-25 07:30:44,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:44,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:44,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:30:44,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:44,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-25 07:30:45,361 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:45,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:45,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 07:30:45,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:45,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:45,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:45,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:30:45,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:45,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:45,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:45,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:45,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:30:45,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:45,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:45,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:45,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:45,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:45,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:45,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:30:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:45,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:45,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:45,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:30:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:45,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:45,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:45,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:45,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:45,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:45,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:45,745 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 07:30:45,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428399694] [2020-09-25 07:30:45,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:45,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:30:45,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847740937] [2020-09-25 07:30:45,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:30:45,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:45,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:30:45,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:30:45,793 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 4 states. [2020-09-25 07:30:47,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:47,237 INFO L93 Difference]: Finished difference Result 502 states and 591 transitions. [2020-09-25 07:30:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:30:47,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:30:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:47,261 INFO L225 Difference]: With dead ends: 502 [2020-09-25 07:30:47,261 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 07:30:47,268 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 07:30:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 07:30:47,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 270. [2020-09-25 07:30:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-25 07:30:47,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 293 transitions. [2020-09-25 07:30:47,388 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 293 transitions. Word has length 148 [2020-09-25 07:30:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:47,390 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 293 transitions. [2020-09-25 07:30:47,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:30:47,390 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 293 transitions. [2020-09-25 07:30:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:30:47,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:47,399 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 07:30:47,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:30:47,399 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:47,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:47,400 INFO L82 PathProgramCache]: Analyzing trace with hash 195823383, now seen corresponding path program 1 times [2020-09-25 07:30:47,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:47,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945593193] [2020-09-25 07:30:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:47,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:47,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:48,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:49,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:49,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:51,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:52,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:52,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:30:52,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:30:52,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 07:30:52,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:52,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:52,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 07:30:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 07:30:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:52,827 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:30:52,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:30:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:52,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:30:53,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 07:30:53,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:53,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 07:30:53,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:30:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:53,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:53,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:53,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:53,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:30:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:53,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:53,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:30:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:53,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:30:53,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:53,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:53,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:30:53,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:30:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:30:53,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:30:53,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:53,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:30:53,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:30:53,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:30:53,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:30:53,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:30:53,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:30:53,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:30:53,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:30:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:53,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:53,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:53,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:53,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:53,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:30:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:53,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:53,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:30:53,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:30:53,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:30:53,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:30:53,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:30:53,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:30:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:30:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:30:53,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:30:53,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:30:53,306 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 07:30:53,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945593193] [2020-09-25 07:30:53,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:30:53,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:30:53,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316975005] [2020-09-25 07:30:53,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:30:53,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:30:53,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:30:53,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:30:53,312 INFO L87 Difference]: Start difference. First operand 270 states and 293 transitions. Second operand 5 states. [2020-09-25 07:30:53,846 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:30:54,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:30:54,852 INFO L93 Difference]: Finished difference Result 472 states and 542 transitions. [2020-09-25 07:30:54,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:30:54,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:30:54,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:30:54,858 INFO L225 Difference]: With dead ends: 472 [2020-09-25 07:30:54,858 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 07:30:54,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 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 07:30:54,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 07:30:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 270. [2020-09-25 07:30:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-09-25 07:30:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2020-09-25 07:30:54,918 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 149 [2020-09-25 07:30:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:30:54,918 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2020-09-25 07:30:54,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:30:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2020-09-25 07:30:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:30:54,921 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:30:54,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:30:54,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:30:54,921 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:30:54,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:30:54,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1529895431, now seen corresponding path program 1 times [2020-09-25 07:30:54,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:30:54,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002982061] [2020-09-25 07:30:54,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:30:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:30:55,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:55,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:58,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:30:59,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 07:31:00,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:31:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 07:31:00,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:31:00,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:31:00,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,355 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:00,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 07:31:00,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:00,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:00,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:00,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:00,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:00,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:00,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:00,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:00,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:00,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:00,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 07:31:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:31:00,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:31:00,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:31:00,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 07:31:00,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:31:00,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:31:00,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:00,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:00,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:31:00,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:31:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:00,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:00,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:00,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:31:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:00,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:00,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:00,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:00,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:00,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:00,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:00,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:00,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:00,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:00,718 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 07:31:00,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002982061] [2020-09-25 07:31:00,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:00,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:31:00,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842498068] [2020-09-25 07:31:00,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:31:00,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:00,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:31:00,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:31:00,722 INFO L87 Difference]: Start difference. First operand 270 states and 292 transitions. Second operand 6 states. [2020-09-25 07:31:01,516 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:02,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:02,740 INFO L93 Difference]: Finished difference Result 455 states and 520 transitions. [2020-09-25 07:31:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:31:02,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 07:31:02,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:02,750 INFO L225 Difference]: With dead ends: 455 [2020-09-25 07:31:02,750 INFO L226 Difference]: Without dead ends: 330 [2020-09-25 07:31:02,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:31:02,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-25 07:31:02,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 260. [2020-09-25 07:31:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-09-25 07:31:02,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 279 transitions. [2020-09-25 07:31:02,815 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 279 transitions. Word has length 162 [2020-09-25 07:31:02,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:02,817 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 279 transitions. [2020-09-25 07:31:02,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:31:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 279 transitions. [2020-09-25 07:31:02,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 07:31:02,822 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:02,822 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 07:31:02,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:31:02,822 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:02,823 INFO L82 PathProgramCache]: Analyzing trace with hash 588701941, now seen corresponding path program 1 times [2020-09-25 07:31:02,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:02,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [378227072] [2020-09-25 07:31:02,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:02,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:03,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:05,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:05,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:05,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:05,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:07,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:07,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 07:31:07,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 07:31:07,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 07:31:07,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:07,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:07,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:31:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:31:07,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 07:31:07,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:08,217 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:08,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:08,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 07:31:08,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:08,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:08,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:08,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:08,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:08,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:08,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:08,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:08,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:08,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:08,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:08,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:08,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:08,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:08,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:31:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 07:31:08,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:31:08,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 07:31:08,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:31:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:31:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 07:31:08,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:31:08,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:31:08,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:31:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:31:08,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:31:08,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:08,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:08,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:08,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:08,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:31:08,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:31:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:08,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:08,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:08,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 07:31:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:08,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:08,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:08,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:08,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:08,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:08,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:08,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:31:08,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:08,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:08,551 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 07:31:08,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [378227072] [2020-09-25 07:31:08,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:08,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:31:08,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430561198] [2020-09-25 07:31:08,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:31:08,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:08,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:31:08,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:31:08,554 INFO L87 Difference]: Start difference. First operand 260 states and 279 transitions. Second operand 7 states. [2020-09-25 07:31:09,214 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:10,786 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:31:11,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:11,662 INFO L93 Difference]: Finished difference Result 590 states and 679 transitions. [2020-09-25 07:31:11,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 07:31:11,663 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 171 [2020-09-25 07:31:11,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:11,667 INFO L225 Difference]: With dead ends: 590 [2020-09-25 07:31:11,667 INFO L226 Difference]: Without dead ends: 445 [2020-09-25 07:31:11,669 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:31:11,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-09-25 07:31:11,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 374. [2020-09-25 07:31:11,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-25 07:31:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 404 transitions. [2020-09-25 07:31:11,719 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 404 transitions. Word has length 171 [2020-09-25 07:31:11,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:11,719 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 404 transitions. [2020-09-25 07:31:11,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:31:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 404 transitions. [2020-09-25 07:31:11,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 07:31:11,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:11,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:31:11,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:31:11,723 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:11,723 INFO L82 PathProgramCache]: Analyzing trace with hash 52230436, now seen corresponding path program 1 times [2020-09-25 07:31:11,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:11,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440365311] [2020-09-25 07:31:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:11,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:12,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:12,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:13,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:13,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:14,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:16,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:16,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 07:31:16,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:17,143 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:31:17,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:31:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:31:17,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 07:31:17,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:17,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:31:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:17,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:17,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:17,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:31:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:17,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:17,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:17,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:31:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:17,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:31:17,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:17,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:31:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:17,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:17,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:17,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:31:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:31:17,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:31:17,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:17,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:31:17,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:17,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 07:31:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 07:31:17,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 07:31:17,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 07:31:17,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:17,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:31:17,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:31:17,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:17,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:31:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:31:17,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:31:17,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:17,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:31:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:31:17,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:17,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:17,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:31:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:31:17,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:31:17,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:31:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:31:17,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:17,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 07:31:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:17,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:17,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:17,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:31:17,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 07:31:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:17,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:17,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:31:17,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:31:17,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:31:17,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:31:17,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:31:17,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:31:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:31:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:31:17,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:31:17,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:31:17,499 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 07:31:17,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440365311] [2020-09-25 07:31:17,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:31:17,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:31:17,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798395656] [2020-09-25 07:31:17,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:31:17,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:31:17,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:31:17,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:31:17,501 INFO L87 Difference]: Start difference. First operand 374 states and 404 transitions. Second operand 6 states. [2020-09-25 07:31:18,095 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:31:20,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:31:20,622 INFO L93 Difference]: Finished difference Result 790 states and 942 transitions. [2020-09-25 07:31:20,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:31:20,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-09-25 07:31:20,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:31:20,631 INFO L225 Difference]: With dead ends: 790 [2020-09-25 07:31:20,631 INFO L226 Difference]: Without dead ends: 787 [2020-09-25 07:31:20,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:31:20,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-09-25 07:31:20,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 641. [2020-09-25 07:31:20,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 641 states. [2020-09-25 07:31:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 712 transitions. [2020-09-25 07:31:20,723 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 712 transitions. Word has length 195 [2020-09-25 07:31:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:31:20,723 INFO L479 AbstractCegarLoop]: Abstraction has 641 states and 712 transitions. [2020-09-25 07:31:20,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:31:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 712 transitions. [2020-09-25 07:31:20,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-09-25 07:31:20,729 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:31:20,729 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, 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, 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] [2020-09-25 07:31:20,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:31:20,730 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:31:20,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:31:20,730 INFO L82 PathProgramCache]: Analyzing trace with hash -186528592, now seen corresponding path program 1 times [2020-09-25 07:31:20,731 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:31:20,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552163872] [2020-09-25 07:31:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:31:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:31:20,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:20,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:21,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:21,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:21,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:22,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:23,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:31:23,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking...