/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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:42:01,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:42:01,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:42:01,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:42:01,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:42:01,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:42:01,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:42:01,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:42:01,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:42:01,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:42:01,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:42:01,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:42:01,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:42:01,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:42:01,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:42:01,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:42:01,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:42:01,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:42:01,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:42:01,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:42:01,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:42:01,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:42:01,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:42:01,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:42:01,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:42:01,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:42:01,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:42:01,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:42:01,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:42:01,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:42:01,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:42:01,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:42:01,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:42:01,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:42:01,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:42:01,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:42:01,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:42:01,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:42:01,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:42:01,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:42:01,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:42:01,609 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 16:42:01,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:42:01,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:42:01,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:42:01,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:42:01,636 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:42:01,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:42:01,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:42:01,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:42:01,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:42:01,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:42:01,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:42:01,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:42:01,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:42:01,638 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:42:01,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:42:01,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:42:01,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:42:01,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:42:01,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:42:01,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:42:01,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:42:01,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:42:01,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:42:01,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:42:01,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:42:01,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:42:01,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:42:01,641 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:42:01,641 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:42:01,642 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 16:42:02,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:42:02,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:42:02,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:42:02,819 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:42:02,821 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:42:02,823 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product13.cil.c [2020-09-24 16:42:02,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75432d464/d2fe0b11ec634fa89a48c6d177319f12/FLAG6726388a5 [2020-09-24 16:42:03,534 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:42:03,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product13.cil.c [2020-09-24 16:42:03,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75432d464/d2fe0b11ec634fa89a48c6d177319f12/FLAG6726388a5 [2020-09-24 16:42:03,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/75432d464/d2fe0b11ec634fa89a48c6d177319f12 [2020-09-24 16:42:03,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:42:03,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:42:03,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:03,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:42:03,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:42:03,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:03, skipping insertion in model container [2020-09-24 16:42:03,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:42:03" (1/1) ... [2020-09-24 16:42:03,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:42:03,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:42:04,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,304 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:42:04,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:42:04,547 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:42:04,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04 WrapperNode [2020-09-24 16:42:04,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:42:04,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:42:04,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:42:04,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (1/1) ... [2020-09-24 16:42:04,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:42:04,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:42:04,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:42:04,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:42:04,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (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 16:42:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:42:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:42:04,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:42:04,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:42:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:42:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:42:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:42:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:42:04,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:42:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:42:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:42:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:42:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:42:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:42:04,741 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:42:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:42:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:42:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:42:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:42:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:42:04,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:42:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:42:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:42:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:42:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-24 16:42:04,743 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:42:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:42:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:42:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:42:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:42:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:42:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:42:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:42:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:42:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:42:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:42:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:42:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:42:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:42:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:42:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:42:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:42:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:42:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:42:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:42:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:42:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:42:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:42:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:42:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:42:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:42:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:42:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:42:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:42:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:42:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:42:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:42:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:42:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:42:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:42:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:42:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:42:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:42:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:42:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:42:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:42:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:42:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:42:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:42:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:42:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 16:42:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:42:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:42:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:42:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 16:42:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:42:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-24 16:42:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:42:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:42:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:42:06,025 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:42:06,025 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:42:06,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:06 BoogieIcfgContainer [2020-09-24 16:42:06,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:42:06,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:42:06,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:42:06,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:42:06,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:42:03" (1/3) ... [2020-09-24 16:42:06,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4413df5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:06, skipping insertion in model container [2020-09-24 16:42:06,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:42:04" (2/3) ... [2020-09-24 16:42:06,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4413df5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:42:06, skipping insertion in model container [2020-09-24 16:42:06,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:42:06" (3/3) ... [2020-09-24 16:42:06,044 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product13.cil.c [2020-09-24 16:42:06,056 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:42:06,067 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:42:06,091 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:42:06,124 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:42:06,124 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:42:06,125 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:42:06,125 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:42:06,125 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:42:06,125 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:42:06,125 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:42:06,126 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:42:06,158 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-09-24 16:42:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 16:42:06,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:06,178 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 16:42:06,178 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:06,187 INFO L82 PathProgramCache]: Analyzing trace with hash 743187035, now seen corresponding path program 1 times [2020-09-24 16:42:06,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:06,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260465495] [2020-09-24 16:42:06,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:06,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:06,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:07,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:08,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:08,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:26,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:26,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 16:42:26,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:42:26,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19938 [2020-09-24 16:42:26,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 16:42:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:26,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 16:42:26,867 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:26,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:26,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,005 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:27,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:27,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:27,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 16:42:27,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:27,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:27,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:27,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:27,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:27,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:27,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:27,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:27,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:27,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:27,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:27,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:27,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:27,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:27,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:27,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:27,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:27,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:27,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:27,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:27,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:27,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,094 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:27,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:27,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:27,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:27,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:27,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:27,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:27,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:27,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:27,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:27,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:27,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:27,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:27,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 16:42:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:27,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,107 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:27,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:27,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:27,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:27,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:27,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 16:42:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:27,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:27,114 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:27,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:27,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:27,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 16:42:27,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 16:42:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 16:42:27,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 16:42:27,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:27,142 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 16:42:27,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260465495] [2020-09-24 16:42:27,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:27,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 16:42:27,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021198513] [2020-09-24 16:42:27,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 16:42:27,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:27,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 16:42:27,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 16:42:27,174 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 3 states. [2020-09-24 16:42:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:28,311 INFO L93 Difference]: Finished difference Result 391 states and 471 transitions. [2020-09-24 16:42:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 16:42:28,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 16:42:28,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:28,335 INFO L225 Difference]: With dead ends: 391 [2020-09-24 16:42:28,335 INFO L226 Difference]: Without dead ends: 252 [2020-09-24 16:42:28,341 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 16:42:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-09-24 16:42:28,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 213. [2020-09-24 16:42:28,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-24 16:42:28,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 230 transitions. [2020-09-24 16:42:28,451 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 230 transitions. Word has length 142 [2020-09-24 16:42:28,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:28,453 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 230 transitions. [2020-09-24 16:42:28,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 16:42:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 230 transitions. [2020-09-24 16:42:28,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 16:42:28,458 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:42:28,459 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 16:42:28,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 16:42:28,459 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:42:28,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:42:28,460 INFO L82 PathProgramCache]: Analyzing trace with hash -159003182, now seen corresponding path program 1 times [2020-09-24 16:42:28,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:42:28,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331931546] [2020-09-24 16:42:28,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:42:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:28,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:29,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:29,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:29,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:53,663 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:53,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 16:42:53,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 16:42:53,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25155 [2020-09-24 16:42:53,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 16:42:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 16:42:53,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-24 16:42:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:54,038 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 16:42:54,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 16:42:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:54,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:54,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 16:42:54,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-09-24 16:42:54,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:54,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 16:42:54,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:54,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 16:42:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:54,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:54,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:54,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:54,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:54,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:54,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:54,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:54,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:54,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:54,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:54,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 16:42:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:54,332 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:54,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:54,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:54,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:54,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:54,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:54,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:54,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:54,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 16:42:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:54,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:54,344 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:54,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:54,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 16:42:54,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:54,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 16:42:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:54,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:54,353 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:54,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 16:42:54,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 16:42:54,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 16:42:54,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 16:42:54,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 16:42:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:54,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:54,361 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:54,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:54,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:54,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 16:42:54,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:54,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 16:42:54,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:54,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:54,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:54,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 16:42:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:42:54,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:42:54,377 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 16:42:54,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 16:42:54,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 16:42:54,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 16:42:54,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 16:42:54,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 16:42:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 16:42:54,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 16:42:54,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 16:42:54,461 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 16:42:54,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331931546] [2020-09-24 16:42:54,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 16:42:54,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 16:42:54,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173975274] [2020-09-24 16:42:54,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 16:42:54,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 16:42:54,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 16:42:54,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 16:42:54,468 INFO L87 Difference]: Start difference. First operand 213 states and 230 transitions. Second operand 8 states. [2020-09-24 16:42:55,093 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:56,251 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:56,574 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:56,913 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:57,240 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 16:42:57,552 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 16:42:57,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 16:42:57,733 INFO L93 Difference]: Finished difference Result 316 states and 361 transitions. [2020-09-24 16:42:57,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 16:42:57,734 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 143 [2020-09-24 16:42:57,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 16:42:57,735 INFO L225 Difference]: With dead ends: 316 [2020-09-24 16:42:57,735 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 16:42:57,744 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-24 16:42:57,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 16:42:57,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 16:42:57,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 16:42:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 16:42:57,746 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 143 [2020-09-24 16:42:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 16:42:57,746 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 16:42:57,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 16:42:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 16:42:57,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 16:42:57,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 16:42:57,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 16:42:57,933 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:58,105 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:58,283 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:58,442 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 16:42:58,616 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 186