/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:39:41,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:39:41,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:39:41,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:39:41,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:39:41,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:39:41,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:39:41,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:39:41,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:39:41,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:39:41,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:39:41,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:39:41,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:39:41,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:39:41,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:39:41,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:39:41,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:39:41,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:39:41,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:39:41,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:39:41,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:39:41,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:39:41,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:39:41,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:39:41,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:39:41,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:39:41,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:39:41,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:39:41,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:39:41,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:39:41,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:39:41,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:39:41,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:39:41,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:39:41,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:39:41,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:39:41,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:39:41,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:39:41,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:39:41,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:39:41,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:39:41,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 08:39:41,582 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:39:41,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:39:41,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:39:41,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:39:41,584 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:39:41,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:39:41,585 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:39:41,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:39:41,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:39:41,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:39:41,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:39:41,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:39:41,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:39:41,587 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:39:41,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:39:41,588 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:39:41,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:39:41,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:39:41,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:39:41,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:39:41,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:39:41,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:39:41,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:39:41,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:39:41,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:39:41,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:39:41,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:39:41,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:39:41,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:39:41,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:39:42,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:39:42,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:39:42,143 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:39:42,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:39:42,145 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:39:42,146 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-25 08:39:42,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd917ecd8/79a2049ef5d043d2ad39746b07c46065/FLAGf62820212 [2020-09-25 08:39:42,816 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:39:42,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product46.cil.c [2020-09-25 08:39:42,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd917ecd8/79a2049ef5d043d2ad39746b07c46065/FLAGf62820212 [2020-09-25 08:39:43,095 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fd917ecd8/79a2049ef5d043d2ad39746b07c46065 [2020-09-25 08:39:43,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:39:43,117 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:39:43,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:43,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:39:43,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:39:43,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:43" (1/1) ... [2020-09-25 08:39:43,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:43, skipping insertion in model container [2020-09-25 08:39:43,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:39:43" (1/1) ... [2020-09-25 08:39:43,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:39:43,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:39:43,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:43,859 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:39:43,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:39:44,015 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:39:44,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44 WrapperNode [2020-09-25 08:39:44,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:39:44,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:39:44,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:39:44,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:39:44,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... [2020-09-25 08:39:44,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... [2020-09-25 08:39:44,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... [2020-09-25 08:39:44,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... [2020-09-25 08:39:44,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... [2020-09-25 08:39:44,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... [2020-09-25 08:39:44,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... [2020-09-25 08:39:44,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:39:44,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:39:44,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:39:44,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:39:44,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:39:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:39:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:39:44,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:39:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:39:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:39:44,190 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:39:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:44,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:39:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:39:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:39:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:39:44,192 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:39:44,193 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:39:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:39:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:39:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:39:44,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 08:39:44,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:39:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:39:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:39:44,196 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:39:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:39:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:39:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 08:39:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:39:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:39:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:39:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:39:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:39:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:39:44,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:39:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:39:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 08:39:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:39:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:39:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:44,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:44,202 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:39:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:39:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:39:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:39:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:39:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:39:44,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:39:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:39:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:39:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:39:44,203 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:39:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:39:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:39:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:39:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:39:44,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:39:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:39:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:39:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:39:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:39:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:39:44,205 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:39:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:39:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:39:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:39:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:39:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:39:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:39:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:39:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:39:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:39:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 08:39:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:39:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:39:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:39:44,209 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:39:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:39:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 08:39:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:39:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:39:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:39:44,210 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:39:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:39:44,211 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:39:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:39:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 08:39:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:39:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 08:39:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 08:39:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:39:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:39:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 08:39:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:39:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:39:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:39:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:39:45,397 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:39:45,397 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:39:45,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:45 BoogieIcfgContainer [2020-09-25 08:39:45,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:39:45,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:39:45,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:39:45,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:39:45,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:39:43" (1/3) ... [2020-09-25 08:39:45,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118c6570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:45, skipping insertion in model container [2020-09-25 08:39:45,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:39:44" (2/3) ... [2020-09-25 08:39:45,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118c6570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:39:45, skipping insertion in model container [2020-09-25 08:39:45,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:39:45" (3/3) ... [2020-09-25 08:39:45,414 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product46.cil.c [2020-09-25 08:39:45,425 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:39:45,436 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:39:45,458 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:39:45,491 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:39:45,491 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:39:45,491 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:39:45,491 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:39:45,492 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:39:45,492 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:39:45,492 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:39:45,492 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:39:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states. [2020-09-25 08:39:45,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 08:39:45,543 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:45,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:45,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:45,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:45,553 INFO L82 PathProgramCache]: Analyzing trace with hash -416095138, now seen corresponding path program 1 times [2020-09-25 08:39:45,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:45,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247319626] [2020-09-25 08:39:45,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:46,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:46,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:47,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:48,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:49,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:50,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 08:39:51,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:39:51,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5113 [2020-09-25 08:39:51,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 08:39:51,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:39:51,426 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:51,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:51,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 08:39:51,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:51,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:51,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:51,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:51,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:51,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:51,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 08:39:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:51,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:51,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 08:39:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:51,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:51,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:51,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:51,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:51,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:51,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:51,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:51,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:51,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:51,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:51,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:51,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247319626] [2020-09-25 08:39:51,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:51,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:39:51,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799826084] [2020-09-25 08:39:51,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:39:51,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:51,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:39:51,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:51,770 INFO L87 Difference]: Start difference. First operand 323 states. Second operand 4 states. [2020-09-25 08:39:53,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:39:53,344 INFO L93 Difference]: Finished difference Result 510 states and 605 transitions. [2020-09-25 08:39:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:39:53,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 08:39:53,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:39:53,368 INFO L225 Difference]: With dead ends: 510 [2020-09-25 08:39:53,369 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 08:39:53,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:39:53,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 08:39:53,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 272. [2020-09-25 08:39:53,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-09-25 08:39:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 297 transitions. [2020-09-25 08:39:53,491 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 297 transitions. Word has length 148 [2020-09-25 08:39:53,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:39:53,492 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 297 transitions. [2020-09-25 08:39:53,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:39:53,492 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 297 transitions. [2020-09-25 08:39:53,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 08:39:53,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:39:53,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:39:53,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:39:53,499 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:39:53,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:39:53,499 INFO L82 PathProgramCache]: Analyzing trace with hash 795504542, now seen corresponding path program 1 times [2020-09-25 08:39:53,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:39:53,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543497742] [2020-09-25 08:39:53,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:39:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:53,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:53,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:55,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:56,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:56,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:57,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 08:39:58,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:39:58,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 08:39:58,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:39:58,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 08:39:58,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:39:58,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:58,872 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:39:58,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:39:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:58,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:58,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:58,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:39:58,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 08:39:58,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:58,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:58,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:58,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:39:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:59,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:59,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:59,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:59,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:59,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:59,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:59,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:39:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:59,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:59,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:59,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:59,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:59,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:59,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:59,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:59,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:59,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:59,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:39:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:59,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:59,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:59,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:59,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:39:59,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:59,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:59,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:59,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:59,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:59,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:39:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:59,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:59,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:39:59,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:59,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:59,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:59,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:59,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:59,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:39:59,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:59,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:59,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:39:59,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:59,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:39:59,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:59,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:59,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:39:59,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:59,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:39:59,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 08:39:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:59,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:59,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:59,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:59,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:59,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:59,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:59,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:59,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:59,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:39:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:39:59,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:39:59,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:39:59,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:39:59,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:39:59,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:39:59,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:39:59,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:39:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:39:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:39:59,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:39:59,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:39:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:39:59,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543497742] [2020-09-25 08:39:59,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:39:59,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:39:59,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735773463] [2020-09-25 08:39:59,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:39:59,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:39:59,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:39:59,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:39:59,145 INFO L87 Difference]: Start difference. First operand 272 states and 297 transitions. Second operand 5 states. [2020-09-25 08:39:59,814 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:40:00,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:00,992 INFO L93 Difference]: Finished difference Result 435 states and 496 transitions. [2020-09-25 08:40:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:40:00,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 08:40:00,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:01,000 INFO L225 Difference]: With dead ends: 435 [2020-09-25 08:40:01,000 INFO L226 Difference]: Without dead ends: 312 [2020-09-25 08:40:01,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:40:01,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-25 08:40:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 262. [2020-09-25 08:40:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 08:40:01,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2020-09-25 08:40:01,082 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 149 [2020-09-25 08:40:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:01,085 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2020-09-25 08:40:01,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:40:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2020-09-25 08:40:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 08:40:01,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:01,090 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 08:40:01,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:40:01,090 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:01,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:01,091 INFO L82 PathProgramCache]: Analyzing trace with hash 639518028, now seen corresponding path program 1 times [2020-09-25 08:40:01,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:01,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656220945] [2020-09-25 08:40:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:01,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:02,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:03,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 08:40:06,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:40:06,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:40:06,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 08:40:06,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:40:06,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:06,512 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:06,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:06,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 08:40:06,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:06,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:06,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:06,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:06,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:06,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:40:06,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:06,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:06,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:06,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:06,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:40:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:06,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:06,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:06,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:40:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:40:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:40:06,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:06,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:40:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:06,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:06,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:06,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:06,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:06,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:40:06,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:06,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:06,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:06,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:06,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:06,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:06,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:40:06,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656220945] [2020-09-25 08:40:06,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:06,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:40:06,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379384268] [2020-09-25 08:40:06,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:40:06,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:06,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:40:06,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:40:06,850 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 6 states. [2020-09-25 08:40:07,563 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:08,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:08,915 INFO L93 Difference]: Finished difference Result 482 states and 561 transitions. [2020-09-25 08:40:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 08:40:08,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 08:40:08,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:08,919 INFO L225 Difference]: With dead ends: 482 [2020-09-25 08:40:08,919 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 08:40:08,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:40:08,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 08:40:08,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 262. [2020-09-25 08:40:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-25 08:40:08,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 283 transitions. [2020-09-25 08:40:08,962 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 283 transitions. Word has length 162 [2020-09-25 08:40:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:08,963 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 283 transitions. [2020-09-25 08:40:08,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:40:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 283 transitions. [2020-09-25 08:40:08,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 08:40:08,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:08,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:40:08,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:40:08,966 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:08,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:08,967 INFO L82 PathProgramCache]: Analyzing trace with hash 477706998, now seen corresponding path program 1 times [2020-09-25 08:40:08,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:08,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [904089508] [2020-09-25 08:40:08,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:09,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:09,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:09,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:11,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:12,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:12,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:12,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-09-25 08:40:14,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 08:40:14,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 08:40:14,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:40:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 08:40:14,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 08:40:14,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,390 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:14,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:14,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-25 08:40:14,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:14,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:14,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:14,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:14,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:14,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:14,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:14,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:14,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:14,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:14,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:14,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:14,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:14,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:14,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:14,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:40:14,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:40:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:14,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:14,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:40:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:40:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:40:14,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:40:14,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 08:40:14,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:14,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 08:40:14,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:40:14,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:14,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:14,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:14,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:14,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:14,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:14,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:40:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:14,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:14,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:14,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:14,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 08:40:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:14,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:14,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:14,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:14,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:14,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:14,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:40:14,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:40:14,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [904089508] [2020-09-25 08:40:14,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:40:14,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 08:40:14,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359544032] [2020-09-25 08:40:14,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 08:40:14,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:14,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 08:40:14,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:40:14,799 INFO L87 Difference]: Start difference. First operand 262 states and 283 transitions. Second operand 7 states. [2020-09-25 08:40:15,295 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:40:18,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:18,256 INFO L93 Difference]: Finished difference Result 690 states and 889 transitions. [2020-09-25 08:40:18,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 08:40:18,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-09-25 08:40:18,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:18,264 INFO L225 Difference]: With dead ends: 690 [2020-09-25 08:40:18,265 INFO L226 Difference]: Without dead ends: 687 [2020-09-25 08:40:18,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:40:18,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2020-09-25 08:40:18,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 409. [2020-09-25 08:40:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-25 08:40:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 453 transitions. [2020-09-25 08:40:18,352 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 453 transitions. Word has length 175 [2020-09-25 08:40:18,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:18,353 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 453 transitions. [2020-09-25 08:40:18,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 08:40:18,353 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 453 transitions. [2020-09-25 08:40:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-09-25 08:40:18,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:18,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:40:18,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:40:18,358 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:18,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:18,358 INFO L82 PathProgramCache]: Analyzing trace with hash -403923766, now seen corresponding path program 1 times [2020-09-25 08:40:18,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:18,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931691593] [2020-09-25 08:40:18,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:18,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:18,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:18,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:18,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:19,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:20,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:20,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:21,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:21,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:22,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-09-25 08:40:23,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 08:40:23,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 08:40:23,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 08:40:23,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 08:40:23,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 08:40:23,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:23,751 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:40:23,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:40:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:23,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 08:40:23,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 08:40:23,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:23,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:23,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:23,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:23,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 08:40:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:23,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:23,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:23,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:23,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:23,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:23,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 08:40:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:23,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:23,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:23,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:23,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:23,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:23,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 08:40:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:23,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:23,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:23,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:23,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:23,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:23,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:23,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 08:40:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:23,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:23,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:23,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:23,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:23,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 08:40:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:23,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:23,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:23,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:23,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:23,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:23,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 08:40:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:23,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:23,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:23,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:23,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:23,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:23,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:23,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:23,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:23,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:40:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 08:40:24,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 08:40:24,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-09-25 08:40:24,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 08:40:24,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:24,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:40:24,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:40:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 08:40:24,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:40:24,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:24,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:40:24,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:40:24,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:40:24,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:24,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:24,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:24,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:40:24,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:24,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-25 08:40:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 08:40:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:40:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 08:40:24,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 08:40:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:24,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:24,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:24,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 08:40:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:24,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:24,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-25 08:40:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:40:24,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:40:24,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 08:40:24,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:24,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-25 08:40:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 08:40:24,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:40:24,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 08:40:24,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:40:24,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 08:40:24,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:40:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:24,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 08:40:24,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:40:24,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:40:24,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 08:40:24,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:24,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 08:40:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:40:24,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:24,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:40:24,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:24,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:40:24,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2020-09-25 08:40:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:24,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:40:24,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:24,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:24,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:24,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:24,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-25 08:40:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:24,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:40:24,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:40:24,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:40:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:40:24,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:40:24,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:40:24,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:40:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:40:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:40:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:40:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 08:40:24,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931691593] [2020-09-25 08:40:24,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 08:40:24,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 08:40:24,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301947898] [2020-09-25 08:40:24,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:40:24,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:40:24,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:40:24,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:40:24,683 INFO L87 Difference]: Start difference. First operand 409 states and 453 transitions. Second operand 9 states. [2020-09-25 08:40:25,755 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:40:26,041 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:40:29,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:40:29,588 INFO L93 Difference]: Finished difference Result 1510 states and 2031 transitions. [2020-09-25 08:40:29,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 08:40:29,589 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 238 [2020-09-25 08:40:29,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:40:29,598 INFO L225 Difference]: With dead ends: 1510 [2020-09-25 08:40:29,598 INFO L226 Difference]: Without dead ends: 1216 [2020-09-25 08:40:29,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2020-09-25 08:40:29,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2020-09-25 08:40:29,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 853. [2020-09-25 08:40:29,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-09-25 08:40:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1015 transitions. [2020-09-25 08:40:29,744 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1015 transitions. Word has length 238 [2020-09-25 08:40:29,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:40:29,745 INFO L479 AbstractCegarLoop]: Abstraction has 853 states and 1015 transitions. [2020-09-25 08:40:29,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:40:29,745 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1015 transitions. [2020-09-25 08:40:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-09-25 08:40:29,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:40:29,752 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:40:29,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:40:29,753 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:40:29,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:40:29,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1238425756, now seen corresponding path program 1 times [2020-09-25 08:40:29,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:40:29,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102584473] [2020-09-25 08:40:29,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:40:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:40:29,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:29,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:40:30,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking...