/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:02:52,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:02:52,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:02:52,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:02:52,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:02:52,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:02:52,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:02:52,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:02:52,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:02:52,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:02:52,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:02:52,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:02:52,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:02:52,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:02:52,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:02:52,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:02:52,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:02:52,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:02:52,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:02:52,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:02:52,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:02:52,624 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:02:52,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:02:52,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:02:52,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:02:52,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:02:52,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:02:52,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:02:52,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:02:52,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:02:52,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:02:52,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:02:52,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:02:52,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:02:52,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:02:52,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:02:52,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:02:52,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:02:52,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:02:52,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:02:52,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:02:52,644 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 [2020-09-24 19:02:52,693 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:02:52,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:02:52,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:02:52,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:02:52,697 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:02:52,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:02:52,697 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:02:52,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:02:52,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:02:52,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:02:52,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:02:52,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:02:52,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:02:52,700 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:02:52,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:02:52,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:02:52,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:02:52,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:02:52,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:02:52,702 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:02:52,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:02:52,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:02:52,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:02:52,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:02:52,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:02:52,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:02:52,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:02:52,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:02:52,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:02:52,704 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:02:53,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:02:53,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:02:53,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:02:53,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:02:53,192 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:02:53,193 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 19:02:53,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57dd3f71d/6815b2645c43437ba49d3918d28af078/FLAG6adbf7edc [2020-09-24 19:02:53,937 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:02:53,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-24 19:02:53,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57dd3f71d/6815b2645c43437ba49d3918d28af078/FLAG6adbf7edc [2020-09-24 19:02:54,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/57dd3f71d/6815b2645c43437ba49d3918d28af078 [2020-09-24 19:02:54,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:02:54,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:02:54,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:02:54,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:02:54,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:02:54,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:54,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce63ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54, skipping insertion in model container [2020-09-24 19:02:54,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:54,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:02:54,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:02:54,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:02:54,793 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:02:54,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:02:54,911 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:02:54,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54 WrapperNode [2020-09-24 19:02:54,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:02:54,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:02:54,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:02:54,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:02:54,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:54,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:54,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:54,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:54,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:55,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:55,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (1/1) ... [2020-09-24 19:02:55,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:02:55,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:02:55,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:02:55,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:02:55,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (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 [2020-09-24 19:02:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:02:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:02:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:02:55,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:02:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:02:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:02:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:02:55,117 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:02:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:02:55,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:02:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:02:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:02:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:02:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:02:55,119 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:02:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:02:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:02:55,120 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:02:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:02:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:02:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:02:55,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:02:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:02:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:02:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:02:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:02:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:02:55,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:02:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:02:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:02:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:02:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:02:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:02:55,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:02:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:02:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:02:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:02:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:02:55,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:02:55,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:02:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:02:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:02:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:02:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:02:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:02:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:02:55,125 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:02:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:02:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:02:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:02:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:02:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:02:55,126 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 19:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:02:55,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:02:55,128 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:02:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:02:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:02:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:02:55,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:02:56,265 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:02:56,265 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:02:56,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:02:56 BoogieIcfgContainer [2020-09-24 19:02:56,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:02:56,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:02:56,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:02:56,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:02:56,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:02:54" (1/3) ... [2020-09-24 19:02:56,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@811fd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:02:56, skipping insertion in model container [2020-09-24 19:02:56,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:02:54" (2/3) ... [2020-09-24 19:02:56,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@811fd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:02:56, skipping insertion in model container [2020-09-24 19:02:56,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:02:56" (3/3) ... [2020-09-24 19:02:56,281 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-24 19:02:56,293 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:02:56,303 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:02:56,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:02:56,353 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:02:56,354 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:02:56,354 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:02:56,354 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:02:56,354 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:02:56,354 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:02:56,354 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:02:56,354 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:02:56,377 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-24 19:02:56,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:02:56,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:02:56,396 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] [2020-09-24 19:02:56,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:02:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:02:56,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-24 19:02:56,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:02:56,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272142539] [2020-09-24 19:02:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:02:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:56,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:57,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:57,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:57,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:02:57,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:02:57,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-09-24 19:02:57,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:57,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:02:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:02:58,154 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:02:58,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:02:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:58,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:58,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:58,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:02:58,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:02:58,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 19:02:58,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:02:58,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:58,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:02:58,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:02:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:58,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:58,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:58,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:02:58,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:02:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:02:58,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:02:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:02:58,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:02:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:58,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:58,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:58,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:02:58,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:02:58,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:02:58,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:58,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:58,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:02:58,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:58,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:02:58,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:02:58,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:58,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:58,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:58,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:02:58,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:02:58,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:02:58,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:02:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:02:58,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:02:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:58,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:58,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:58,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:02:58,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:02:58,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:02:58,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:58,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:58,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:02:58,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:58,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:02:58,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:02:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:58,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:58,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:58,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:02:58,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:02:58,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:02:58,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:58,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:58,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:02:58,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:58,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:02:58,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:02:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:02:58,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:02:58,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:02:58,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:02:58,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:02:58,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:02:58,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:02:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:02:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:02:58,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:02:58,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:02:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:02:58,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272142539] [2020-09-24 19:02:58,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:02:58,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:02:58,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423982487] [2020-09-24 19:02:58,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:02:58,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:02:58,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:02:58,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:02:58,553 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-09-24 19:02:59,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:02:59,758 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-24 19:02:59,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:02:59,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:02:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:02:59,780 INFO L225 Difference]: With dead ends: 448 [2020-09-24 19:02:59,781 INFO L226 Difference]: Without dead ends: 282 [2020-09-24 19:02:59,787 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:02:59,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-24 19:02:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-24 19:02:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-24 19:02:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-24 19:02:59,891 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-24 19:02:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:02:59,892 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-24 19:02:59,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:02:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-24 19:02:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:02:59,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:02:59,897 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] [2020-09-24 19:02:59,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:02:59,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:02:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:02:59,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1951375081, now seen corresponding path program 1 times [2020-09-24 19:02:59,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:02:59,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785486331] [2020-09-24 19:02:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:02:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:00,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:00,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:00,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:00,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:03:00,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:00,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1011 [2020-09-24 19:03:00,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:03:00,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:03:00,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:01,363 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:01,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:01,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:01,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:01,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:01,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:01,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 19:03:01,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:01,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:01,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:01,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:01,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:01,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:01,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:01,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:01,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:01,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:01,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:01,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:01,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:01,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:01,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:01,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:01,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:01,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:01,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:01,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:01,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:01,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:01,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:01,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:01,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:01,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:01,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:01,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:01,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:01,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:01,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:01,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:01,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:01,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:01,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:01,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:01,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:03:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:01,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:01,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:01,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:01,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:01,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:01,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:01,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:01,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:01,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:01,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:01,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:03:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:01,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:01,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:01,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:01,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:01,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:01,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:01,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:01,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785486331] [2020-09-24 19:03:01,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:01,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:03:01,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775810414] [2020-09-24 19:03:01,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:03:01,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:01,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:03:01,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:03:01,652 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-24 19:03:02,241 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:03,153 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-24 19:03:03,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:03:03,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:03:03,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:03,160 INFO L225 Difference]: With dead ends: 352 [2020-09-24 19:03:03,160 INFO L226 Difference]: Without dead ends: 265 [2020-09-24 19:03:03,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:03:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-24 19:03:03,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-24 19:03:03,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-24 19:03:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-24 19:03:03,202 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-24 19:03:03,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:03,203 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-24 19:03:03,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:03:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-24 19:03:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 19:03:03,206 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:03,207 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] [2020-09-24 19:03:03,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:03:03,207 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:03,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:03,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1408786884, now seen corresponding path program 1 times [2020-09-24 19:03:03,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:03,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [709843103] [2020-09-24 19:03:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:03,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:03,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:03:04,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:03:04,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-09-24 19:03:04,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:03:04,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:04,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:04,655 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:04,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:04,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 19:03:04,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:04,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:04,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:04,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:04,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:04,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:04,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:04,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:04,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:04,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:04,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:04,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:04,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:04,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:04,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:04,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:04,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:04,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:04,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:04,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:03:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:04,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:04,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:04,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:03:04,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:04,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:03:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:04,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:04,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:04,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:04,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:04,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:03:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:04,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:04,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:04,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:04,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:04,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:04,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:04,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:04,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:04,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:04,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [709843103] [2020-09-24 19:03:04,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:04,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:03:04,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541474523] [2020-09-24 19:03:04,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:03:04,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:04,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:03:04,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:03:04,935 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-24 19:03:05,434 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:07,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:07,111 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-24 19:03:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:03:07,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 19:03:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:07,116 INFO L225 Difference]: With dead ends: 536 [2020-09-24 19:03:07,117 INFO L226 Difference]: Without dead ends: 416 [2020-09-24 19:03:07,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:03:07,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-24 19:03:07,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-24 19:03:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-24 19:03:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-24 19:03:07,181 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-24 19:03:07,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:07,182 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-24 19:03:07,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:03:07,182 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-24 19:03:07,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:03:07,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:07,185 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] [2020-09-24 19:03:07,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:03:07,186 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:07,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:07,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1641209859, now seen corresponding path program 1 times [2020-09-24 19:03:07,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:07,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358482342] [2020-09-24 19:03:07,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:07,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:08,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:08,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 19:03:08,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:08,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-24 19:03:08,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 19:03:08,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 19:03:08,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-24 19:03:08,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:08,714 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:08,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:08,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:09,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-09-24 19:03:09,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:09,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:09,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 19:03:09,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:09,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:09,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:09,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:09,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:09,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:09,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:09,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:09,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:09,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:09,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:09,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:09,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:09,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:09,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:03:09,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:09,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:09,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:09,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:09,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:09,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:09,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:09,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:09,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:09,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:03:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:09,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:09,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:09,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:09,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:03:09,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:09,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:03:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:09,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:09,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:03:09,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:09,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:09,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:09,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:03:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:09,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:09,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:09,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:09,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:09,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:09,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:09,214 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358482342] [2020-09-24 19:03:09,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:09,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:03:09,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660850080] [2020-09-24 19:03:09,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:03:09,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:09,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:03:09,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:03:09,216 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-24 19:03:09,925 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:11,491 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:11,843 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:12,214 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:12,553 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:12,874 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:13,180 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:13,483 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:13,980 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:14,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:14,972 INFO L93 Difference]: Finished difference Result 886 states and 1053 transitions. [2020-09-24 19:03:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:03:14,973 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 19:03:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:14,979 INFO L225 Difference]: With dead ends: 886 [2020-09-24 19:03:14,979 INFO L226 Difference]: Without dead ends: 662 [2020-09-24 19:03:14,981 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:03:14,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2020-09-24 19:03:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 531. [2020-09-24 19:03:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-09-24 19:03:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 590 transitions. [2020-09-24 19:03:15,077 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 590 transitions. Word has length 161 [2020-09-24 19:03:15,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:15,078 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 590 transitions. [2020-09-24 19:03:15,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:03:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 590 transitions. [2020-09-24 19:03:15,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 19:03:15,081 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:15,082 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] [2020-09-24 19:03:15,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:03:15,082 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:15,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:15,083 INFO L82 PathProgramCache]: Analyzing trace with hash 804799078, now seen corresponding path program 1 times [2020-09-24 19:03:15,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:15,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984994790] [2020-09-24 19:03:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:15,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:15,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:15,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:03:16,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:03:16,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-09-24 19:03:16,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:03:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 19:03:16,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:03:16,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:16,683 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:16,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:16,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-24 19:03:16,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:16,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:16,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:16,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:16,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:16,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:16,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:16,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:16,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:16,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:03:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:16,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:16,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 19:03:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:16,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:16,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:16,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:16,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:03:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:16,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:16,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:16,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:16,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:16,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:03:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:16,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:16,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:16,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:16,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 19:03:16,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:16,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:17,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984994790] [2020-09-24 19:03:17,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:17,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:03:17,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854793583] [2020-09-24 19:03:17,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:03:17,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:17,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:03:17,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:03:17,060 INFO L87 Difference]: Start difference. First operand 531 states and 590 transitions. Second operand 10 states. [2020-09-24 19:03:17,566 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:18,957 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:19,340 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:03:19,695 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:20,066 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:03:20,371 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:21,001 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:21,295 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:21,689 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:22,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:22,586 INFO L93 Difference]: Finished difference Result 1470 states and 1792 transitions. [2020-09-24 19:03:22,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:03:22,587 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-24 19:03:22,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:22,595 INFO L225 Difference]: With dead ends: 1470 [2020-09-24 19:03:22,595 INFO L226 Difference]: Without dead ends: 1049 [2020-09-24 19:03:22,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 19:03:22,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2020-09-24 19:03:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 831. [2020-09-24 19:03:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-09-24 19:03:22,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 954 transitions. [2020-09-24 19:03:22,723 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 954 transitions. Word has length 166 [2020-09-24 19:03:22,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:22,724 INFO L479 AbstractCegarLoop]: Abstraction has 831 states and 954 transitions. [2020-09-24 19:03:22,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:03:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 954 transitions. [2020-09-24 19:03:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:03:22,728 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:22,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:22,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:03:22,729 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:22,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:22,730 INFO L82 PathProgramCache]: Analyzing trace with hash 633475050, now seen corresponding path program 1 times [2020-09-24 19:03:22,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:22,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719671269] [2020-09-24 19:03:22,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:23,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:23,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 19:03:23,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:23,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 841 [2020-09-24 19:03:23,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:03:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-24 19:03:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:23,902 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:23,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:23,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:24,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 19:03:24,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:24,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:24,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:24,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:24,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:24,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:24,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:24,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:24,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:03:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:24,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:24,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:24,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:03:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:24,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:24,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:03:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:03:24,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 19:03:24,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:03:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:03:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:24,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 19:03:24,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:03:24,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:24,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:24,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:24,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:24,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:24,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:03:24,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:03:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:24,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:24,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:24,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:03:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:24,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:24,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:24,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:24,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:24,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:24,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:24,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:24,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:24,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:24,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:24,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [719671269] [2020-09-24 19:03:24,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:24,674 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 19:03:24,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267352194] [2020-09-24 19:03:24,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:03:24,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:24,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:03:24,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:03:24,678 INFO L87 Difference]: Start difference. First operand 831 states and 954 transitions. Second operand 11 states. [2020-09-24 19:03:26,240 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:03:26,567 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:03:26,889 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:03:27,206 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:27,544 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:27,844 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:28,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:28,848 INFO L93 Difference]: Finished difference Result 2068 states and 2596 transitions. [2020-09-24 19:03:28,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:03:28,848 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 19:03:28,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:28,858 INFO L225 Difference]: With dead ends: 2068 [2020-09-24 19:03:28,858 INFO L226 Difference]: Without dead ends: 1347 [2020-09-24 19:03:28,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:03:28,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2020-09-24 19:03:29,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 869. [2020-09-24 19:03:29,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-09-24 19:03:29,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 992 transitions. [2020-09-24 19:03:29,015 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 992 transitions. Word has length 194 [2020-09-24 19:03:29,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:29,016 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 992 transitions. [2020-09-24 19:03:29,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 19:03:29,016 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 992 transitions. [2020-09-24 19:03:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:03:29,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:29,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:29,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:03:29,021 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:29,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:29,021 INFO L82 PathProgramCache]: Analyzing trace with hash -788765814, now seen corresponding path program 1 times [2020-09-24 19:03:29,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:29,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805234053] [2020-09-24 19:03:29,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:29,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:29,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:29,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 19:03:29,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:29,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 815 [2020-09-24 19:03:29,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:29,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 19:03:29,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:29,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,231 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:30,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:30,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:03:30,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:30,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:30,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:30,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:30,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:30,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:03:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:30,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:03:30,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:03:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:30,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:30,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:03:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:03:30,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-24 19:03:30,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:03:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:30,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:30,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 19:03:30,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:03:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:03:30,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:03:30,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:30,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:30,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:03:30,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:03:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:30,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:30,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:03:30,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:03:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:30,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:30,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:03:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:30,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:30,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:30,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:30,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:30,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:30,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:30,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805234053] [2020-09-24 19:03:30,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:30,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:03:30,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863046224] [2020-09-24 19:03:30,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:03:30,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:30,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:03:30,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:03:30,794 INFO L87 Difference]: Start difference. First operand 869 states and 992 transitions. Second operand 10 states. [2020-09-24 19:03:32,063 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:32,361 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:32,661 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:32,991 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:03:33,282 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:03:34,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:34,729 INFO L93 Difference]: Finished difference Result 2150 states and 2731 transitions. [2020-09-24 19:03:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:03:34,730 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 19:03:34,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:34,739 INFO L225 Difference]: With dead ends: 2150 [2020-09-24 19:03:34,739 INFO L226 Difference]: Without dead ends: 1391 [2020-09-24 19:03:34,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:03:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2020-09-24 19:03:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 893. [2020-09-24 19:03:34,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 893 states. [2020-09-24 19:03:34,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1016 transitions. [2020-09-24 19:03:34,850 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1016 transitions. Word has length 194 [2020-09-24 19:03:34,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:34,851 INFO L479 AbstractCegarLoop]: Abstraction has 893 states and 1016 transitions. [2020-09-24 19:03:34,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:03:34,851 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1016 transitions. [2020-09-24 19:03:34,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 19:03:34,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:34,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:34,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:03:34,856 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:34,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:34,856 INFO L82 PathProgramCache]: Analyzing trace with hash -580417043, now seen corresponding path program 1 times [2020-09-24 19:03:34,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:34,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064721502] [2020-09-24 19:03:34,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:34,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:35,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:35,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 19:03:35,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:35,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1059 [2020-09-24 19:03:35,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:35,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:03:35,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 19:03:35,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 19:03:35,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,386 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:03:36,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:03:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:03:36,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-09-24 19:03:36,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:03:36,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:03:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:36,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:36,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:36,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:03:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:36,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:03:36,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:36,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:03:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:36,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:03:36,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:03:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:03:36,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:03:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:03:36,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:36,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:03:36,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:03:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:03:36,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:03:36,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:03:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 19:03:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:36,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:36,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:03:36,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 19:03:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:03:36,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:03:36,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 19:03:36,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 19:03:36,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:03:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:03:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 19:03:36,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:03:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:03:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:03:36,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:03:36,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:03:36,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:03:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:03:36,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:03:36,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:03:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:03:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:03:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:03:36,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 19:03:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:36,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:36,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:36,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:36,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 19:03:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:03:36,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:03:36,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:03:36,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:03:36,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:03:36,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:03:36,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:03:36,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:03:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:03:36,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:03:36,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:03:37,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:03:37,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064721502] [2020-09-24 19:03:37,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:03:37,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:03:37,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920915999] [2020-09-24 19:03:37,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:03:37,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:03:37,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:03:37,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:03:37,054 INFO L87 Difference]: Start difference. First operand 893 states and 1016 transitions. Second operand 9 states. [2020-09-24 19:03:37,641 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:38,296 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:40,920 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:03:43,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:03:43,672 INFO L93 Difference]: Finished difference Result 4056 states and 5326 transitions. [2020-09-24 19:03:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-24 19:03:43,674 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2020-09-24 19:03:43,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:03:43,697 INFO L225 Difference]: With dead ends: 4056 [2020-09-24 19:03:43,697 INFO L226 Difference]: Without dead ends: 3273 [2020-09-24 19:03:43,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=826, Unknown=0, NotChecked=0, Total=1056 [2020-09-24 19:03:43,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2020-09-24 19:03:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2299. [2020-09-24 19:03:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2299 states. [2020-09-24 19:03:44,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 2673 transitions. [2020-09-24 19:03:44,086 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 2673 transitions. Word has length 194 [2020-09-24 19:03:44,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:03:44,086 INFO L479 AbstractCegarLoop]: Abstraction has 2299 states and 2673 transitions. [2020-09-24 19:03:44,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:03:44,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 2673 transitions. [2020-09-24 19:03:44,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 19:03:44,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:03:44,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:03:44,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:03:44,093 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:03:44,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:03:44,093 INFO L82 PathProgramCache]: Analyzing trace with hash -2090495192, now seen corresponding path program 1 times [2020-09-24 19:03:44,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:03:44,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623386539] [2020-09-24 19:03:44,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:03:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:03:44,164 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:03:44,165 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:03:44,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 19:03:44,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:03:44 BoogieIcfgContainer [2020-09-24 19:03:44,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:03:44,210 INFO L168 Benchmark]: Toolchain (without parser) took 50032.34 ms. Allocated memory was 138.9 MB in the beginning and 855.1 MB in the end (delta: 716.2 MB). Free memory was 100.9 MB in the beginning and 633.4 MB in the end (delta: -532.5 MB). Peak memory consumption was 183.6 MB. Max. memory is 7.1 GB. [2020-09-24 19:03:44,214 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-09-24 19:03:44,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.68 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 169.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-09-24 19:03:44,222 INFO L168 Benchmark]: Boogie Preprocessor took 107.91 ms. Allocated memory is still 202.9 MB. Free memory was 169.5 MB in the beginning and 165.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:03:44,223 INFO L168 Benchmark]: RCFGBuilder took 1251.90 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 175.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-09-24 19:03:44,224 INFO L168 Benchmark]: TraceAbstraction took 47934.93 ms. Allocated memory was 234.4 MB in the beginning and 855.1 MB in the end (delta: 620.8 MB). Free memory was 175.5 MB in the beginning and 633.4 MB in the end (delta: -457.9 MB). Peak memory consumption was 162.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:03:44,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 726.68 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 169.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.91 ms. Allocated memory is still 202.9 MB. Free memory was 169.5 MB in the beginning and 165.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1251.90 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 165.5 MB in the beginning and 175.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 47934.93 ms. Allocated memory was 234.4 MB in the beginning and 855.1 MB in the end (delta: 620.8 MB). Free memory was 175.5 MB in the beginning and 633.4 MB in the end (delta: -457.9 MB). Peak memory consumption was 162.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L610] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L833] int cleanupTimeShifts = 4; [L906] int retValue_acc ; [L907] int tmp ; [L911] FCALL select_helpers() [L912] FCALL select_features() [L913] CALL, EXPR valid_product() [L432] int retValue_acc ; [L435] retValue_acc = 1 [L436] return (retValue_acc); [L913] RET, EXPR valid_product() [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L917] FCALL setup() [L918] CALL runTest() [L900] CALL test() [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 [L344] COND TRUE 1 [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) [L356] CALL waterRise() [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 [L356] RET waterRise() [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) [L366] CALL changeMethaneLevel() [L269] COND FALSE !(\read(methaneLevelCritical)) [L272] methaneLevelCritical = 1 [L366] RET changeMethaneLevel() [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) [L376] CALL startSystem() [L231] systemActive = 1 [L376] RET startSystem() [L391] CALL timeShift() [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L77] CALL processEnvironment() [L97] int tmp ; [L100] COND TRUE ! pumpRunning [L102] CALL, EXPR isHighWaterLevel() [L194] int retValue_acc ; [L195] int tmp ; [L196] int tmp___0 ; [L200] CALL, EXPR isHighWaterSensorDry() [L319] int retValue_acc ; [L322] COND FALSE !(waterLevel < 2) [L326] retValue_acc = 0 [L327] return (retValue_acc); [L200] RET, EXPR isHighWaterSensorDry() [L200] tmp = isHighWaterSensorDry() [L202] COND FALSE !(\read(tmp)) [L205] tmp___0 = 1 [L207] retValue_acc = tmp___0 [L208] return (retValue_acc); [L102] RET, EXPR isHighWaterLevel() [L102] tmp = isHighWaterLevel() [L104] COND TRUE \read(tmp) [L106] CALL activatePump() [L125] pumpRunning = 1 [L106] RET activatePump() [L77] RET processEnvironment() [L83] CALL __utac_acc__Specification1_spec__1() [L808] int tmp ; [L809] int tmp___0 ; [L813] CALL, EXPR isMethaneLevelCritical() [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L813] RET, EXPR isMethaneLevelCritical() [L813] tmp = isMethaneLevelCritical() [L815] COND TRUE \read(tmp) [L817] CALL, EXPR isPumpRunning() [L149] int retValue_acc ; [L152] retValue_acc = pumpRunning [L153] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] tmp___0 = isPumpRunning() [L819] COND TRUE \read(tmp___0) [L821] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 616 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.8s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1876 SDtfs, 4638 SDslu, 3242 SDs, 0 SdLazy, 6999 SolverSat, 1645 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2299occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 2458 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 1549 NumberOfCodeBlocks, 1549 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1342 ConstructedInterpolants, 0 QuantifiedInterpolants, 543320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect!