/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:43:37,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:43:37,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:43:37,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:43:37,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:43:37,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:43:37,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:43:37,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:43:37,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:43:37,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:43:37,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:43:37,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:43:37,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:43:37,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:43:37,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:43:37,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:43:37,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:43:37,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:43:37,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:43:37,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:43:37,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:43:37,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:43:37,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:43:37,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:43:37,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:43:37,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:43:37,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:43:37,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:43:37,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:43:37,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:43:37,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:43:37,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:43:37,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:43:37,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:43:37,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:43:37,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:43:37,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:43:37,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:43:37,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:43:37,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:43:37,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:43:37,603 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 16:43:37,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:43:37,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:43:37,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:43:37,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:43:37,644 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:43:37,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:43:37,645 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:43:37,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:43:37,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:43:37,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:43:37,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:43:37,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:43:37,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:43:37,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:43:37,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:43:37,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:43:37,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:43:37,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:43:37,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:43:37,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:43:37,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:43:37,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:43:37,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:43:37,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:43:37,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:43:37,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:43:37,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:43:37,650 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:43:37,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:43:37,651 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;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;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;log-additional-information=true; [2020-09-24 16:43:38,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:43:38,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:43:38,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:43:38,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:43:38,149 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:43:38,151 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-24 16:43:38,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71fb81cc0/40922ae8d3a348c3800011c0a230db1a/FLAG8168775a1 [2020-09-24 16:43:38,846 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:43:38,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product35.cil.c [2020-09-24 16:43:38,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71fb81cc0/40922ae8d3a348c3800011c0a230db1a/FLAG8168775a1 [2020-09-24 16:43:39,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/71fb81cc0/40922ae8d3a348c3800011c0a230db1a [2020-09-24 16:43:39,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:43:39,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:43:39,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:43:39,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:43:39,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:43:39,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39, skipping insertion in model container [2020-09-24 16:43:39,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:43:39,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:43:39,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:43:39,570 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:43:39,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:43:39,796 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:43:39,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39 WrapperNode [2020-09-24 16:43:39,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:43:39,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:43:39,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:43:39,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:43:39,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (1/1) ... [2020-09-24 16:43:39,928 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:43:39,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:43:39,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:43:39,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:43:39,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (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 16:43:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:43:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:43:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:43:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:43:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 16:43:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:43:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:43:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:43:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:43:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:43:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:43:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:43:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:43:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:43:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:43:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:43:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 16:43:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 16:43:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:43:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:43:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:43:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:43:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:43:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:43:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:43:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:43:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:43:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:43:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:43:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:43:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:43:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:43:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:43:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:43:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:43:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:43:40,012 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:43:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:43:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:43:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:43:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:43:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:43:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 16:43:40,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:43:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:43:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:43:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:43:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 16:43:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:43:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:43:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:43:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:43:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:43:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:43:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:43:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:43:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 16:43:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:43:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:43:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:43:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:43:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:43:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:43:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:43:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:43:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:43:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:43:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:43:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:43:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:43:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:43:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:43:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:43:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:43:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:43:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:43:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:43:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:43:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:43:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:43:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:43:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:43:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:43:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:43:40,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:43:41,116 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:43:41,117 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:43:41,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:43:41 BoogieIcfgContainer [2020-09-24 16:43:41,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:43:41,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:43:41,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:43:41,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:43:41,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:43:39" (1/3) ... [2020-09-24 16:43:41,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b1932e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:43:41, skipping insertion in model container [2020-09-24 16:43:41,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:43:39" (2/3) ... [2020-09-24 16:43:41,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b1932e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:43:41, skipping insertion in model container [2020-09-24 16:43:41,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:43:41" (3/3) ... [2020-09-24 16:43:41,133 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2020-09-24 16:43:41,144 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:43:41,156 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:43:41,179 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:43:41,212 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:43:41,212 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:43:41,212 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:43:41,213 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:43:41,213 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:43:41,213 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:43:41,213 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:43:41,213 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:43:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-24 16:43:41,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:43:41,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:43:41,261 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 16:43:41,262 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:43:41,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:43:41,270 INFO L82 PathProgramCache]: Analyzing trace with hash 750514354, now seen corresponding path program 1 times [2020-09-24 16:43:41,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:43:41,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607036168] [2020-09-24 16:43:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:43:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:41,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:41,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:43,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:44,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:45,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:43:59,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:43:59,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:43:59,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:43:59,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17706 [2020-09-24 16:43:59,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:43:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 16:43:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 16:43:59,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 16:43:59,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:43:59,811 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:43:59,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:43:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:43:59,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:00,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:00,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:44:00,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:00,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-24 16:44:00,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:00,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:00,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:00,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 16:44:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:00,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:44:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:00,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:00,183 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:00,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:00,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:00,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:44:00,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:00,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:00,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:00,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:44:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:00,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:00,193 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:00,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:00,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:00,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:44:00,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:00,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:00,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:00,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:00,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:00,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:44:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:00,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:00,209 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:00,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:00,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:00,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 16:44:00,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:00,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:00,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:00,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:00,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:44:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:00,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:00,219 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:00,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:00,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:00,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:44:00,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:00,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:00,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:00,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:00,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:44:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:00,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:00,239 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:00,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:00,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:00,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 16:44:00,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:44:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:00,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:00,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:00,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:44:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:00,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:00,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:00,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:00,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:00,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:44:00,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:44:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:00,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:00,307 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 16:44:00,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607036168] [2020-09-24 16:44:00,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:44:00,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:44:00,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746892312] [2020-09-24 16:44:00,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:44:00,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:44:00,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:44:00,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:44:00,341 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 8 states. [2020-09-24 16:44:00,958 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:44:02,045 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:02,382 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:44:02,789 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:03,165 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:44:03,521 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:04,261 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:44:04,595 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:05,127 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:06,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:44:06,156 INFO L93 Difference]: Finished difference Result 584 states and 714 transitions. [2020-09-24 16:44:06,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 16:44:06,163 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 16:44:06,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:44:06,190 INFO L225 Difference]: With dead ends: 584 [2020-09-24 16:44:06,190 INFO L226 Difference]: Without dead ends: 391 [2020-09-24 16:44:06,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:44:06,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2020-09-24 16:44:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 337. [2020-09-24 16:44:06,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-24 16:44:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 371 transitions. [2020-09-24 16:44:06,325 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 371 transitions. Word has length 142 [2020-09-24 16:44:06,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:44:06,326 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 371 transitions. [2020-09-24 16:44:06,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:44:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 371 transitions. [2020-09-24 16:44:06,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 16:44:06,332 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:44:06,333 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] [2020-09-24 16:44:06,333 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:44:06,333 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:44:06,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:44:06,334 INFO L82 PathProgramCache]: Analyzing trace with hash 24014077, now seen corresponding path program 1 times [2020-09-24 16:44:06,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:44:06,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88632611] [2020-09-24 16:44:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:44:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:06,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:07,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:09,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:11,988 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:11,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 16:44:11,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 16:44:11,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5604 [2020-09-24 16:44:11,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 16:44:12,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 16:44:12,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-24 16:44:12,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-24 16:44:12,347 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:44:12,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:44:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,562 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:44:12,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-24 16:44:12,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:12,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 16:44:12,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:44:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:12,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:44:12,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:12,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:44:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,611 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:12,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:44:12,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:12,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:12,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:44:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,623 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:12,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:44:12,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:12,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:44:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:12,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:44:12,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:12,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:44:12,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:44:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:44:12,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:44:12,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 16:44:12,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 16:44:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:12,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:44:12,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:44:12,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:12,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 16:44:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:12,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:12,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:12,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:12,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:12,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:44:12,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:44:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:44:12,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:12,760 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 16:44:12,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88632611] [2020-09-24 16:44:12,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:44:12,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 16:44:12,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047332713] [2020-09-24 16:44:12,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 16:44:12,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:44:12,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 16:44:12,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 16:44:12,767 INFO L87 Difference]: Start difference. First operand 337 states and 371 transitions. Second operand 9 states. [2020-09-24 16:44:13,258 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:44:14,610 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:44:14,961 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 16:44:15,306 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:15,637 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:44:15,944 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:44:16,628 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:16,945 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:44:17,333 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:18,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:44:18,380 INFO L93 Difference]: Finished difference Result 814 states and 994 transitions. [2020-09-24 16:44:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 16:44:18,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-24 16:44:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:44:18,389 INFO L225 Difference]: With dead ends: 814 [2020-09-24 16:44:18,389 INFO L226 Difference]: Without dead ends: 587 [2020-09-24 16:44:18,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 16:44:18,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2020-09-24 16:44:18,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 495. [2020-09-24 16:44:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-24 16:44:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 575 transitions. [2020-09-24 16:44:18,478 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 575 transitions. Word has length 157 [2020-09-24 16:44:18,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:44:18,480 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 575 transitions. [2020-09-24 16:44:18,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 16:44:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 575 transitions. [2020-09-24 16:44:18,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 16:44:18,485 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:44:18,485 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] [2020-09-24 16:44:18,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:44:18,485 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:44:18,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:44:18,486 INFO L82 PathProgramCache]: Analyzing trace with hash 350443365, now seen corresponding path program 1 times [2020-09-24 16:44:18,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:44:18,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [535922764] [2020-09-24 16:44:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:44:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:18,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 16:44:19,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 798 [2020-09-24 16:44:19,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:44:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 16:44:19,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:44:19,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,688 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:44:19,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:44:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:44:19,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 16:44:19,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:19,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:44:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:19,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:44:19,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:19,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:44:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,850 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:19,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:44:19,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:19,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:44:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:19,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:44:19,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:19,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:44:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,870 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:44:19,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:44:19,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:19,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:44:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 16:44:19,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:44:19,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:19,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:19,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:19,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:19,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 16:44:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:19,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:19,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:19,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 16:44:19,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:19,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-24 16:44:19,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 16:44:19,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 16:44:19,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 16:44:19,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:44:20,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 16:44:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:20,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:20,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 16:44:20,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:20,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-24 16:44:20,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:44:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:20,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 16:44:20,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:44:20,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 16:44:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:20,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:20,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:20,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 16:44:20,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:20,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 16:44:20,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:44:20,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:20,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:20,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 16:44:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:20,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:20,124 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:20,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 16:44:20,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:20,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:44:20,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 16:44:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:20,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 16:44:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:20,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:20,130 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:20,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:20,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:20,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:44:20,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:20,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:20,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:44:20,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:20,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:20,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 16:44:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:20,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:20,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:44:20,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:44:20,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:44:20,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:44:20,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:44:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:44:20,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:44:20,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:44:20,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:44:20,171 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 16:44:20,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [535922764] [2020-09-24 16:44:20,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:44:20,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 16:44:20,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830191293] [2020-09-24 16:44:20,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 16:44:20,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:44:20,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 16:44:20,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 16:44:20,176 INFO L87 Difference]: Start difference. First operand 495 states and 575 transitions. Second operand 10 states. [2020-09-24 16:44:21,623 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:21,935 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:44:22,185 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 16:44:22,524 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:22,875 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 16:44:23,178 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 16:44:24,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:44:24,255 INFO L93 Difference]: Finished difference Result 1072 states and 1342 transitions. [2020-09-24 16:44:24,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 16:44:24,256 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 16:44:24,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:44:24,262 INFO L225 Difference]: With dead ends: 1072 [2020-09-24 16:44:24,262 INFO L226 Difference]: Without dead ends: 687 [2020-09-24 16:44:24,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 16:44:24,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2020-09-24 16:44:24,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 517. [2020-09-24 16:44:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 517 states. [2020-09-24 16:44:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 597 transitions. [2020-09-24 16:44:24,339 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 597 transitions. Word has length 190 [2020-09-24 16:44:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:44:24,340 INFO L479 AbstractCegarLoop]: Abstraction has 517 states and 597 transitions. [2020-09-24 16:44:24,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 16:44:24,340 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 597 transitions. [2020-09-24 16:44:24,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-24 16:44:24,344 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:44:24,345 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 16:44:24,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 16:44:24,345 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:44:24,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:44:24,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1240509503, now seen corresponding path program 1 times [2020-09-24 16:44:24,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:44:24,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [701592408] [2020-09-24 16:44:24,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:44:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:44:24,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:24,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:24,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:24,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:25,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:44:25,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking...