/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_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:02:22,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:02:22,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:02:23,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:02:23,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:02:23,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:02:23,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:02:23,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:02:23,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:02:23,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:02:23,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:02:23,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:02:23,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:02:23,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:02:23,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:02:23,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:02:23,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:02:23,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:02:23,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:02:23,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:02:23,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:02:23,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:02:23,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:02:23,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:02:23,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:02:23,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:02:23,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:02:23,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:02:23,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:02:23,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:02:23,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:02:23,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:02:23,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:02:23,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:02:23,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:02:23,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:02:23,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:02:23,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:02:23,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:02:23,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:02:23,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:02:23,083 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 18:02:23,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:02:23,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:02:23,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:02:23,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:02:23,120 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:02:23,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:02:23,121 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:02:23,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:02:23,121 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:02:23,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:02:23,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:02:23,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:02:23,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:02:23,122 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:02:23,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:02:23,123 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:02:23,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:02:23,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:02:23,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:02:23,124 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:02:23,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:02:23,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:02:23,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:02:23,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:02:23,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:02:23,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:02:23,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:02:23,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:02:23,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:02:23,126 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 18:02:23,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:02:23,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:02:23,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:02:23,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:02:23,620 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:02:23,622 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-09-24 18:02:23,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/819fd301d/2b6ba2b42c244e3a918755ac03ef9e86/FLAGc5f52c0ee [2020-09-24 18:02:24,383 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:02:24,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-09-24 18:02:24,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/819fd301d/2b6ba2b42c244e3a918755ac03ef9e86/FLAGc5f52c0ee [2020-09-24 18:02:24,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/819fd301d/2b6ba2b42c244e3a918755ac03ef9e86 [2020-09-24 18:02:24,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:02:24,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:02:24,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:24,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:02:24,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:02:24,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:24" (1/1) ... [2020-09-24 18:02:24,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:24, skipping insertion in model container [2020-09-24 18:02:24,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:02:24" (1/1) ... [2020-09-24 18:02:24,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:02:24,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:02:25,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:25,282 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:02:25,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:02:25,420 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:02:25,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25 WrapperNode [2020-09-24 18:02:25,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:02:25,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:02:25,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:02:25,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:02:25,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (1/1) ... [2020-09-24 18:02:25,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (1/1) ... [2020-09-24 18:02:25,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (1/1) ... [2020-09-24 18:02:25,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (1/1) ... [2020-09-24 18:02:25,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (1/1) ... [2020-09-24 18:02:25,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (1/1) ... [2020-09-24 18:02:25,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (1/1) ... [2020-09-24 18:02:25,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:02:25,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:02:25,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:02:25,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:02:25,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (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 18:02:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:02:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:02:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:02:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:02:25,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:02:25,612 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:02:25,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:02:25,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:25,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:25,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:25,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:02:25,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:02:25,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:02:25,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:02:25,614 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:02:25,614 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:02:25,614 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:02:25,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:02:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:02:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:02:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:02:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:02:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:02:25,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:02:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:02:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:02:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:02:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:02:25,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:02:25,617 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 18:02:25,617 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:02:25,617 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:02:25,617 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:02:25,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:02:25,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:02:25,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:02:25,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:02:25,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:02:25,618 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:02:25,618 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 18:02:25,618 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:02:25,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:02:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:02:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:02:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:02:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:02:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:02:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:02:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:02:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:02:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:02:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:02:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:02:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:02:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:02:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:02:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:02:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:02:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:02:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:02:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:02:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:02:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:02:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:02:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:02:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:02:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:02:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:02:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:02:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:02:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:02:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:02:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:02:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:02:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:02:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:02:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:02:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:02:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:02:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:02:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 18:02:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:02:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:02:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:02:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:02:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:02:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:02:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:02:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 18:02:25,626 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:02:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:02:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:02:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:02:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:02:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 18:02:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:02:25,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:02:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:02:25,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:02:26,806 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:02:26,806 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:02:26,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:26 BoogieIcfgContainer [2020-09-24 18:02:26,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:02:26,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:02:26,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:02:26,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:02:26,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:02:24" (1/3) ... [2020-09-24 18:02:26,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a39d176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:26, skipping insertion in model container [2020-09-24 18:02:26,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:02:25" (2/3) ... [2020-09-24 18:02:26,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a39d176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:02:26, skipping insertion in model container [2020-09-24 18:02:26,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:02:26" (3/3) ... [2020-09-24 18:02:26,825 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-09-24 18:02:26,839 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:02:26,852 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:02:26,876 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:02:26,923 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:02:26,924 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:02:26,924 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:02:26,925 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:02:26,925 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:02:26,925 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:02:26,925 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:02:26,926 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:02:26,975 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2020-09-24 18:02:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 18:02:27,015 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:27,017 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 18:02:27,020 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:27,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:27,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1296502413, now seen corresponding path program 1 times [2020-09-24 18:02:27,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:27,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113673964] [2020-09-24 18:02:27,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:27,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:27,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:29,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:32,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:32,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 18:02:32,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5081 [2020-09-24 18:02:32,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:32,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:02:32,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:32,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 18:02:33,084 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:33,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:33,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 18:02:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:33,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:33,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:33,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:33,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:33,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:33,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:33,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:02:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:33,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:33,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:02:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:33,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:33,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:33,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 18:02:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:33,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:33,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:33,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:33,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:33,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:33,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:33,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:33,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:33,448 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 18:02:33,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113673964] [2020-09-24 18:02:33,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:33,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:02:33,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543017743] [2020-09-24 18:02:33,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:02:33,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:33,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:02:33,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:33,495 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 3 states. [2020-09-24 18:02:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:35,737 INFO L93 Difference]: Finished difference Result 576 states and 686 transitions. [2020-09-24 18:02:35,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:02:35,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 18:02:35,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:35,762 INFO L225 Difference]: With dead ends: 576 [2020-09-24 18:02:35,763 INFO L226 Difference]: Without dead ends: 348 [2020-09-24 18:02:35,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:02:35,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-24 18:02:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 302. [2020-09-24 18:02:35,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-09-24 18:02:35,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 332 transitions. [2020-09-24 18:02:35,903 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 332 transitions. Word has length 153 [2020-09-24 18:02:35,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:35,905 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 332 transitions. [2020-09-24 18:02:35,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:02:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 332 transitions. [2020-09-24 18:02:35,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 18:02:35,910 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:35,911 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 18:02:35,911 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:02:35,911 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:35,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:35,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1707767493, now seen corresponding path program 1 times [2020-09-24 18:02:35,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:35,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330223240] [2020-09-24 18:02:35,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:36,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:36,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:37,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 18:02:41,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:02:41,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 18:02:41,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:02:41,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:02:41,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:41,287 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:41,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 18:02:41,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:41,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:41,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:41,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:41,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:41,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:41,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:41,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:41,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:41,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:41,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:41,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:41,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:41,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:41,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:41,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:41,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:41,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 18:02:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:41,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:41,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:41,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:41,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 18:02:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:41,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:41,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:41,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 18:02:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:41,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:41,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:41,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:41,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:41,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:41,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:41,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:41,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:41,516 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 18:02:41,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330223240] [2020-09-24 18:02:41,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:41,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:02:41,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76976226] [2020-09-24 18:02:41,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:02:41,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:41,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:02:41,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:02:41,521 INFO L87 Difference]: Start difference. First operand 302 states and 332 transitions. Second operand 4 states. [2020-09-24 18:02:42,113 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:02:43,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:43,459 INFO L93 Difference]: Finished difference Result 483 states and 549 transitions. [2020-09-24 18:02:43,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:02:43,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 18:02:43,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:43,468 INFO L225 Difference]: With dead ends: 483 [2020-09-24 18:02:43,468 INFO L226 Difference]: Without dead ends: 331 [2020-09-24 18:02:43,473 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 18:02:43,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-24 18:02:43,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 292. [2020-09-24 18:02:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-24 18:02:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 319 transitions. [2020-09-24 18:02:43,562 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 319 transitions. Word has length 154 [2020-09-24 18:02:43,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:43,565 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 319 transitions. [2020-09-24 18:02:43,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:02:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 319 transitions. [2020-09-24 18:02:43,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 18:02:43,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:43,568 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] [2020-09-24 18:02:43,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:02:43,569 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:43,569 INFO L82 PathProgramCache]: Analyzing trace with hash 359507624, now seen corresponding path program 1 times [2020-09-24 18:02:43,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:43,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1452180368] [2020-09-24 18:02:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:43,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:43,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:46,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:46,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-24 18:02:46,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:02:46,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3158 [2020-09-24 18:02:46,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:02:46,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:02:46,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:47,091 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:47,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:47,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 18:02:47,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:47,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:47,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:47,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:47,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:47,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:02:47,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:47,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:47,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:47,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:47,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:47,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:47,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:47,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:47,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 18:02:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:02:47,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:47,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:47,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 18:02:47,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:47,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 18:02:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:47,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:47,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:47,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 18:02:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:47,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:02:47,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:47,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:47,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 18:02:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:47,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:47,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:47,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:47,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:47,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:47,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:47,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:47,404 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 18:02:47,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1452180368] [2020-09-24 18:02:47,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:47,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 18:02:47,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736146033] [2020-09-24 18:02:47,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 18:02:47,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:47,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 18:02:47,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:02:47,408 INFO L87 Difference]: Start difference. First operand 292 states and 319 transitions. Second operand 5 states. [2020-09-24 18:02:47,902 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:50,331 INFO L93 Difference]: Finished difference Result 730 states and 850 transitions. [2020-09-24 18:02:50,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 18:02:50,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-24 18:02:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:50,340 INFO L225 Difference]: With dead ends: 730 [2020-09-24 18:02:50,340 INFO L226 Difference]: Without dead ends: 548 [2020-09-24 18:02:50,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 18:02:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-09-24 18:02:50,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 464. [2020-09-24 18:02:50,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-09-24 18:02:50,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 519 transitions. [2020-09-24 18:02:50,422 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 519 transitions. Word has length 167 [2020-09-24 18:02:50,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:50,422 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 519 transitions. [2020-09-24 18:02:50,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 18:02:50,423 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 519 transitions. [2020-09-24 18:02:50,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 18:02:50,426 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:50,426 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] [2020-09-24 18:02:50,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:02:50,427 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:50,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:50,427 INFO L82 PathProgramCache]: Analyzing trace with hash -585794347, now seen corresponding path program 1 times [2020-09-24 18:02:50,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:50,428 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555292316] [2020-09-24 18:02:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:50,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:52,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:52,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 18:02:52,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:52,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1743 [2020-09-24 18:02:52,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:52,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 18:02:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 18:02:52,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 18:02:52,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:02:52,676 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:02:52,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:02:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:52,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:52,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:02:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-24 18:02:52,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 18:02:52,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:52,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:02:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:52,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:52,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:52,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:52,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:52,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:52,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:52,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:52,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:52,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:02:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:52,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:52,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:52,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:52,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:52,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:02:52,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:52,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:52,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:52,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:02:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:52,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:53,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 18:02:53,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:53,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:53,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:02:53,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:02:53,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:53,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 18:02:53,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 18:02:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 18:02:53,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:02:53,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 18:02:53,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:02:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:53,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:02:53,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:02:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:53,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 18:02:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:53,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:02:53,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:02:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:02:53,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:02:53,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 18:02:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:02:53,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:02:53,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:02:53,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:02:53,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:02:53,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:02:53,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:02:53,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:02:53,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:02:53,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:02:53,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:02:53,175 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 18:02:53,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555292316] [2020-09-24 18:02:53,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:02:53,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:02:53,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297521961] [2020-09-24 18:02:53,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:02:53,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:02:53,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:02:53,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:02:53,180 INFO L87 Difference]: Start difference. First operand 464 states and 519 transitions. Second operand 9 states. [2020-09-24 18:02:53,720 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:56,109 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:56,812 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 18:02:57,235 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:57,604 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:02:57,909 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:02:58,227 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:02:58,524 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:02:59,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:02:59,701 INFO L93 Difference]: Finished difference Result 1266 states and 1523 transitions. [2020-09-24 18:02:59,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 18:02:59,702 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-09-24 18:02:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:02:59,709 INFO L225 Difference]: With dead ends: 1266 [2020-09-24 18:02:59,709 INFO L226 Difference]: Without dead ends: 912 [2020-09-24 18:02:59,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-09-24 18:02:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-09-24 18:02:59,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 809. [2020-09-24 18:02:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-09-24 18:02:59,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 927 transitions. [2020-09-24 18:02:59,857 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 927 transitions. Word has length 172 [2020-09-24 18:02:59,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:02:59,858 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 927 transitions. [2020-09-24 18:02:59,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:02:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 927 transitions. [2020-09-24 18:02:59,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 18:02:59,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:02:59,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:02:59,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:02:59,869 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:02:59,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:02:59,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1663706585, now seen corresponding path program 1 times [2020-09-24 18:02:59,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:02:59,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1693012011] [2020-09-24 18:02:59,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:02:59,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:02:59,940 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:02:59,941 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:02:59,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:02:59,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:02:59 BoogieIcfgContainer [2020-09-24 18:02:59,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:02:59,983 INFO L168 Benchmark]: Toolchain (without parser) took 35342.87 ms. Allocated memory was 146.8 MB in the beginning and 651.2 MB in the end (delta: 504.4 MB). Free memory was 102.4 MB in the beginning and 369.6 MB in the end (delta: -267.1 MB). Peak memory consumption was 237.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:59,985 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:02:59,987 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.58 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 169.9 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:59,993 INFO L168 Benchmark]: Boogie Preprocessor took 98.77 ms. Allocated memory is still 203.4 MB. Free memory was 169.9 MB in the beginning and 165.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:59,994 INFO L168 Benchmark]: RCFGBuilder took 1293.41 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.9 MB in the beginning and 169.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-09-24 18:02:59,994 INFO L168 Benchmark]: TraceAbstraction took 33164.74 ms. Allocated memory was 235.9 MB in the beginning and 651.2 MB in the end (delta: 415.2 MB). Free memory was 168.0 MB in the beginning and 369.6 MB in the end (delta: -201.6 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:03:00,007 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.58 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 169.9 MB in the end (delta: -68.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.77 ms. Allocated memory is still 203.4 MB. Free memory was 169.9 MB in the beginning and 165.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1293.41 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.9 MB in the beginning and 169.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33164.74 ms. Allocated memory was 235.9 MB in the beginning and 651.2 MB in the end (delta: 415.2 MB). Free memory was 168.0 MB in the beginning and 369.6 MB in the end (delta: -201.6 MB). Peak memory consumption was 213.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) [L990] CALL stopSystem() [L920] COND FALSE !(\read(pumpRunning)) [L927] systemActive = 0 [L990] RET stopSystem() [L997] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND FALSE !(\read(systemActive)) [L716] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L1013] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 665 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 33.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1161 SDtfs, 1496 SDslu, 907 SDs, 0 SdLazy, 2592 SolverSat, 497 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=809occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 272 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 247340 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...