/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:00:48,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:00:48,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:00:48,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:00:48,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:00:48,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:00:48,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:00:48,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:00:48,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:00:48,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:00:48,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:00:48,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:00:48,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:00:48,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:00:48,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:00:48,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:00:48,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:00:48,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:00:48,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:00:48,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:00:48,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:00:48,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:00:48,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:00:48,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:00:48,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:00:48,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:00:48,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:00:48,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:00:48,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:00:48,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:00:48,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:00:48,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:00:48,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:00:48,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:00:48,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:00:48,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:00:48,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:00:48,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:00:48,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:00:48,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:00:48,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:00:48,780 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 18:00:48,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:00:48,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:00:48,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:00:48,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:00:48,807 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:00:48,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:00:48,808 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:00:48,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:00:48,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:00:48,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:00:48,809 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:00:48,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:00:48,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:00:48,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:00:48,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:00:48,810 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:00:48,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:00:48,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:00:48,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:00:48,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:00:48,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:00:48,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:00:48,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:00:48,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:00:48,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:00:48,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:00:48,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:00:48,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:00:48,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:00:48,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:00:49,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:00:49,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:00:49,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:00:49,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:00:49,295 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:00:49,296 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-24 18:00:49,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff0944095/c2759748538b4e4f879e0a1d72612357/FLAGe5b28302f [2020-09-24 18:00:50,021 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:00:50,022 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-24 18:00:50,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff0944095/c2759748538b4e4f879e0a1d72612357/FLAGe5b28302f [2020-09-24 18:00:50,306 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ff0944095/c2759748538b4e4f879e0a1d72612357 [2020-09-24 18:00:50,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:00:50,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:00:50,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:50,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:00:50,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:00:50,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:50" (1/1) ... [2020-09-24 18:00:50,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201d7596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:50, skipping insertion in model container [2020-09-24 18:00:50,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:00:50" (1/1) ... [2020-09-24 18:00:50,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:00:50,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:00:50,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:50,907 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:00:51,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:00:51,069 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:00:51,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51 WrapperNode [2020-09-24 18:00:51,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:00:51,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:00:51,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:00:51,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:00:51,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (1/1) ... [2020-09-24 18:00:51,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:00:51,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:00:51,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:00:51,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:00:51,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (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 18:00:51,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:00:51,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:00:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:51,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:00:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:00:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:00:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:00:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:00:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:00:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:00:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:00:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:00:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:00:51,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:00:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:00:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:00:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:00:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:00:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:00:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:00:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:00:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:00:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:00:51,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:00:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:00:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:00:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:00:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:00:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:00:51,283 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:00:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:00:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:00:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:00:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:51,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:00:51,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:00:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:00:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:00:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:00:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:00:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:00:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:00:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:00:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:00:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:00:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:00:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:00:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:00:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:00:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:00:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:00:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:00:51,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:00:52,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:00:52,540 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:00:52,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:52 BoogieIcfgContainer [2020-09-24 18:00:52,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:00:52,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:00:52,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:00:52,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:00:52,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:00:50" (1/3) ... [2020-09-24 18:00:52,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce211bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:52, skipping insertion in model container [2020-09-24 18:00:52,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:00:51" (2/3) ... [2020-09-24 18:00:52,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce211bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:00:52, skipping insertion in model container [2020-09-24 18:00:52,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:00:52" (3/3) ... [2020-09-24 18:00:52,562 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-09-24 18:00:52,575 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:00:52,593 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:00:52,618 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:00:52,664 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:00:52,665 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:00:52,665 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:00:52,665 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:00:52,666 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:00:52,666 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:00:52,666 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:00:52,666 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:00:52,707 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-09-24 18:00:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:00:52,739 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:52,740 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] [2020-09-24 18:00:52,741 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:52,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:52,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1231247222, now seen corresponding path program 1 times [2020-09-24 18:00:52,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:52,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217534225] [2020-09-24 18:00:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:53,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:53,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:53,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:54,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:57,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:57,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:00:57,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:00:57,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4259 [2020-09-24 18:00:57,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:57,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:00:57,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:57,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:00:58,019 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:00:58,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:00:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:00:58,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 18:00:58,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:58,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:58,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:00:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:58,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:58,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:58,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:00:58,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:00:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:58,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:00:58,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:58,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:00:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:58,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:00:58,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:58,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:00:58,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:00:58,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:58,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:00:58,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:58,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:00:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:58,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:58,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:58,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:58,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:00:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:58,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:58,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:58,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:58,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:00:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:00:58,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:00:58,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:00:58,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:00:58,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:00:58,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:00:58,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:00:58,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:00:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:00:58,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:00:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:00:58,369 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 18:00:58,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217534225] [2020-09-24 18:00:58,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:00:58,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:00:58,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325993762] [2020-09-24 18:00:58,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:00:58,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:00:58,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:00:58,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:00:58,405 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 3 states. [2020-09-24 18:00:59,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:00:59,726 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-09-24 18:00:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:00:59,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:00:59,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:00:59,750 INFO L225 Difference]: With dead ends: 435 [2020-09-24 18:00:59,751 INFO L226 Difference]: Without dead ends: 274 [2020-09-24 18:00:59,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:00:59,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-24 18:00:59,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-24 18:00:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-24 18:00:59,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-09-24 18:00:59,865 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-09-24 18:00:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:00:59,869 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-09-24 18:00:59,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:00:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-09-24 18:00:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:00:59,873 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:00:59,877 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] [2020-09-24 18:00:59,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:00:59,878 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:00:59,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:00:59,878 INFO L82 PathProgramCache]: Analyzing trace with hash -606501768, now seen corresponding path program 1 times [2020-09-24 18:00:59,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:00:59,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785901589] [2020-09-24 18:00:59,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:00:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:00,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:00,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:04,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:04,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:01:04,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:01:04,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 18:01:04,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:01:04,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:01:04,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:05,294 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:05,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:05,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 18:01:05,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:05,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:05,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:05,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:01:05,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:05,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:05,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:05,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:05,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:05,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:05,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:05,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:05,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:05,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:05,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:05,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:01:05,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:05,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:05,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:01:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:05,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:05,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:05,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:05,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:01:05,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:05,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:05,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:05,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:05,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:01:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:05,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:05,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:05,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:05,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:05,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:05,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:05,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:05,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:05,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:05,593 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 18:01:05,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785901589] [2020-09-24 18:01:05,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:05,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:05,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871297036] [2020-09-24 18:01:05,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:05,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:05,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:05,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:05,601 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-09-24 18:01:06,206 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:01:06,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:06,942 INFO L93 Difference]: Finished difference Result 352 states and 392 transitions. [2020-09-24 18:01:06,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:06,944 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:01:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:06,948 INFO L225 Difference]: With dead ends: 352 [2020-09-24 18:01:06,948 INFO L226 Difference]: Without dead ends: 257 [2020-09-24 18:01:06,950 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:06,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-24 18:01:06,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-09-24 18:01:06,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-24 18:01:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 240 transitions. [2020-09-24 18:01:06,998 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 240 transitions. Word has length 154 [2020-09-24 18:01:06,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:06,999 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 240 transitions. [2020-09-24 18:01:06,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:06,999 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 240 transitions. [2020-09-24 18:01:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 18:01:07,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:07,001 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] [2020-09-24 18:01:07,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:01:07,002 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:07,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:07,003 INFO L82 PathProgramCache]: Analyzing trace with hash -897278278, now seen corresponding path program 1 times [2020-09-24 18:01:07,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:07,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597693565] [2020-09-24 18:01:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:07,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:07,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 18:01:10,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:01:10,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3128 [2020-09-24 18:01:10,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 18:01:10,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 18:01:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:10,520 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:10,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:10,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 18:01:10,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:10,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:10,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 18:01:10,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:10,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:10,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:01:10,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:10,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:10,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:10,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 18:01:10,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:10,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:10,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:10,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:01:10,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:10,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:10,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:10,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:10,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:10,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:10,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:10,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:01:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:10,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:10,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:10,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:10,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:10,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:01:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:10,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:10,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:01:10,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 18:01:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:10,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:10,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:10,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:10,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:10,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:10,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:10,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:10,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:10,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:10,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:10,959 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 18:01:10,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597693565] [2020-09-24 18:01:10,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:10,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:01:10,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783166351] [2020-09-24 18:01:10,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:01:10,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:10,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:01:10,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:01:10,962 INFO L87 Difference]: Start difference. First operand 225 states and 240 transitions. Second operand 4 states. [2020-09-24 18:01:11,464 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:12,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:12,270 INFO L93 Difference]: Finished difference Result 372 states and 417 transitions. [2020-09-24 18:01:12,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:01:12,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 18:01:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:12,275 INFO L225 Difference]: With dead ends: 372 [2020-09-24 18:01:12,275 INFO L226 Difference]: Without dead ends: 257 [2020-09-24 18:01:12,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:01:12,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-09-24 18:01:12,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 225. [2020-09-24 18:01:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-24 18:01:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-09-24 18:01:12,321 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 163 [2020-09-24 18:01:12,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:12,322 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-09-24 18:01:12,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:01:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-09-24 18:01:12,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 18:01:12,324 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:12,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:01:12,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:01:12,325 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:12,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:12,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1060139161, now seen corresponding path program 1 times [2020-09-24 18:01:12,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:12,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497048236] [2020-09-24 18:01:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:12,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 18:01:14,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1687 [2020-09-24 18:01:14,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:01:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 18:01:14,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-24 18:01:14,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,418 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:01:14,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:01:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:01:14,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 18:01:14,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:14,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 18:01:14,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:01:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:14,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:14,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:14,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:01:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:14,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:14,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:14,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:01:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:01:14,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:14,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:01:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:14,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:14,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:01:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:01:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 18:01:14,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:01:14,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 18:01:14,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:01:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:01:14,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:01:14,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 18:01:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:01:14,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:01:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:14,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 18:01:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:01:14,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:01:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:01:14,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:01:14,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 18:01:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:01:14,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:01:14,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:01:14,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:01:14,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:01:14,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:01:14,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:01:14,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:01:14,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:01:14,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:01:14,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:01:14,883 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 18:01:14,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497048236] [2020-09-24 18:01:14,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:01:14,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:01:14,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224699930] [2020-09-24 18:01:14,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:01:14,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:01:14,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:01:14,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:01:14,886 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-09-24 18:01:15,385 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:17,060 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:17,703 WARN L193 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:01:18,098 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:18,435 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:01:18,774 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:01:19,110 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:01:19,419 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:01:20,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:01:20,100 INFO L93 Difference]: Finished difference Result 522 states and 613 transitions. [2020-09-24 18:01:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:01:20,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-24 18:01:20,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:01:20,109 INFO L225 Difference]: With dead ends: 522 [2020-09-24 18:01:20,109 INFO L226 Difference]: Without dead ends: 407 [2020-09-24 18:01:20,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:01:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-24 18:01:20,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 332. [2020-09-24 18:01:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-09-24 18:01:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 363 transitions. [2020-09-24 18:01:20,173 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 363 transitions. Word has length 171 [2020-09-24 18:01:20,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:01:20,173 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 363 transitions. [2020-09-24 18:01:20,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:01:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 363 transitions. [2020-09-24 18:01:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 18:01:20,176 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:01:20,176 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] [2020-09-24 18:01:20,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:01:20,177 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:01:20,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:01:20,177 INFO L82 PathProgramCache]: Analyzing trace with hash 558510229, now seen corresponding path program 1 times [2020-09-24 18:01:20,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:01:20,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397370714] [2020-09-24 18:01:20,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:01:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:01:20,245 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:01:20,245 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:01:20,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:01:20,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:01:20 BoogieIcfgContainer [2020-09-24 18:01:20,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:01:20,280 INFO L168 Benchmark]: Toolchain (without parser) took 29959.72 ms. Allocated memory was 141.0 MB in the beginning and 598.2 MB in the end (delta: 457.2 MB). Free memory was 102.3 MB in the beginning and 216.2 MB in the end (delta: -113.9 MB). Peak memory consumption was 343.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:20,282 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:01:20,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.98 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 174.3 MB in the end (delta: -72.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:20,283 INFO L168 Benchmark]: Boogie Preprocessor took 127.19 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 170.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:20,284 INFO L168 Benchmark]: RCFGBuilder took 1352.54 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 170.3 MB in the beginning and 178.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:20,285 INFO L168 Benchmark]: TraceAbstraction took 27725.80 ms. Allocated memory was 235.9 MB in the beginning and 598.2 MB in the end (delta: 362.3 MB). Free memory was 177.2 MB in the beginning and 216.2 MB in the end (delta: -39.0 MB). Peak memory consumption was 323.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:01:20,289 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.98 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 174.3 MB in the end (delta: -72.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.19 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 170.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1352.54 ms. Allocated memory was 204.5 MB in the beginning and 235.9 MB in the end (delta: 31.5 MB). Free memory was 170.3 MB in the beginning and 178.6 MB in the end (delta: -8.3 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27725.80 ms. Allocated memory was 235.9 MB in the beginning and 598.2 MB in the end (delta: 362.3 MB). Free memory was 177.2 MB in the beginning and 216.2 MB in the end (delta: -39.0 MB). Peak memory consumption was 323.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; [L811] int retValue_acc ; [L812] int tmp ; [L816] FCALL select_helpers() [L817] FCALL select_features() [L818] CALL, EXPR valid_product() [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L818] RET, EXPR valid_product() [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) [L822] FCALL setup() [L823] CALL runTest() [L802] CALL test() [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) [L535] CALL waterRise() [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L535] RET waterRise() [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L566] CALL timeShift() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L637] FCALL processEnvironment__wrappee__base() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification3_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L876] CALL, EXPR isMethaneLevelCritical() [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L876] RET, EXPR isMethaneLevelCritical() [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) [L882] CALL, EXPR getWaterLevel() [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 [L886] CALL, EXPR isPumpRunning() [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) [L892] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 861 SDtfs, 885 SDslu, 743 SDs, 0 SdLazy, 1659 SolverSat, 255 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=332occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 178 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 817 NumberOfCodeBlocks, 817 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 253576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...