/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:55:55,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:55:55,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:55:55,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:55:55,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:55:55,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:55:55,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:55:55,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:55:55,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:55:55,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:55:55,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:55:55,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:55:55,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:55:55,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:55:55,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:55:55,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:55:55,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:55:55,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:55:55,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:55:55,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:55:55,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:55:55,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:55:55,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:55:55,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:55:55,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:55:55,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:55:55,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:55:55,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:55:55,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:55:55,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:55:55,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:55:55,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:55:55,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:55:55,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:55:55,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:55:55,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:55:55,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:55:55,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:55:55,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:55:55,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:55:55,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:55:55,140 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 [2020-09-25 10:55:55,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:55:55,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:55:55,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:55:55,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:55:55,168 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:55:55,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:55:55,169 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:55:55,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:55:55,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:55:55,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:55:55,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:55:55,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:55:55,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:55:55,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:55:55,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:55:55,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:55:55,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:55:55,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:55:55,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:55:55,171 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:55:55,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:55:55,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:55:55,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:55:55,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:55:55,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:55:55,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:55:55,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:55:55,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:55:55,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:55:55,173 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-09-25 10:55:55,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:55:55,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:55:55,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:55:55,641 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:55:55,642 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:55:55,643 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 10:55:55,729 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09365f8c1/4f7b370a124d40f5bc5d791f375f9487/FLAGd457ecef2 [2020-09-25 10:55:56,344 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:55:56,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 10:55:56,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09365f8c1/4f7b370a124d40f5bc5d791f375f9487/FLAGd457ecef2 [2020-09-25 10:55:56,629 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/09365f8c1/4f7b370a124d40f5bc5d791f375f9487 [2020-09-25 10:55:56,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:55:56,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:55:56,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:55:56,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:55:56,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:55:56,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:56" (1/1) ... [2020-09-25 10:55:56,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f68fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:56, skipping insertion in model container [2020-09-25 10:55:56,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:55:56" (1/1) ... [2020-09-25 10:55:56,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:55:56,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:55:57,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:55:57,263 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:55:57,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:55:57,388 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:55:57,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57 WrapperNode [2020-09-25 10:55:57,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:55:57,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:55:57,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:55:57,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:55:57,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (1/1) ... [2020-09-25 10:55:57,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (1/1) ... [2020-09-25 10:55:57,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (1/1) ... [2020-09-25 10:55:57,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (1/1) ... [2020-09-25 10:55:57,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (1/1) ... [2020-09-25 10:55:57,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (1/1) ... [2020-09-25 10:55:57,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (1/1) ... [2020-09-25 10:55:57,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:55:57,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:55:57,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:55:57,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:55:57,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (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 [2020-09-25 10:55:57,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:55:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:55:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:55:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:55:57,584 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:55:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:55:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:55:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:55:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:55:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:55:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:55:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:55:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:55:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:55:57,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:55:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:55:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:55:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:55:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:55:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:55:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:55:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:55:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:55:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:55:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:55:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:55:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:55:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:55:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:55:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:55:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:55:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:55:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:55:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:55:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:55:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:55:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:55:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:55:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:55:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:55:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:55:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:55:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:55:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:55:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:55:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:55:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:55:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:55:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:55:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:55:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:55:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:55:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:55:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:55:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:55:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:55:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:55:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:55:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:55:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:55:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:55:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:55:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:55:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:55:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:55:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:55:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:55:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:55:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:55:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:55:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:55:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:55:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:55:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:55:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:55:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:55:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:55:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:55:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:55:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:55:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:55:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:55:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:55:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:55:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:55:57,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:55:58,760 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:55:58,760 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:55:58,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:58 BoogieIcfgContainer [2020-09-25 10:55:58,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:55:58,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:55:58,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:55:58,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:55:58,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:55:56" (1/3) ... [2020-09-25 10:55:58,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb5aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:58, skipping insertion in model container [2020-09-25 10:55:58,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:55:57" (2/3) ... [2020-09-25 10:55:58,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb5aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:55:58, skipping insertion in model container [2020-09-25 10:55:58,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:55:58" (3/3) ... [2020-09-25 10:55:58,778 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-09-25 10:55:58,790 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:55:58,801 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:55:58,825 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:55:58,860 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:55:58,861 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:55:58,861 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:55:58,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:55:58,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:55:58,862 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:55:58,862 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:55:58,862 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:55:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 10:55:58,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:55:58,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:55:58,913 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] [2020-09-25 10:55:58,913 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:55:58,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:55:58,921 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-09-25 10:55:58,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:55:58,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40789879] [2020-09-25 10:55:58,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:55:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:55:59,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:55:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:01,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:04,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:04,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:56:04,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:56:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:56:04,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:04,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:56:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 10:56:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 10:56:04,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:56:04,844 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:56:04,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:56:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:04,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:56:05,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-25 10:56:05,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:05,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:05,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 10:56:05,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-25 10:56:05,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:56:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:56:05,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:05,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:05,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:05,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:56:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:05,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:05,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:56:05,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:05,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:05,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:05,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:56:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:05,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:05,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:56:05,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:05,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:05,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:05,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:56:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:05,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:05,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:56:05,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:05,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:05,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:05,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:05,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:56:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:05,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:05,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:56:05,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:05,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:05,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:05,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:56:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:05,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:05,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:56:05,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:56:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:05,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:56:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:05,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:05,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:05,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:05,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:05,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:05,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:05,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:05,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:05,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:05,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:05,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:56:05,519 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40789879] [2020-09-25 10:56:05,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:56:05,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:56:05,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473991526] [2020-09-25 10:56:05,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:56:05,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:56:05,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:56:05,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:56:05,555 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 8 states. [2020-09-25 10:56:06,130 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:07,821 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:08,219 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:08,585 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:08,966 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:09,293 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:56:09,652 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:09,984 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:56:11,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:11,048 INFO L93 Difference]: Finished difference Result 558 states and 696 transitions. [2020-09-25 10:56:11,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:56:11,051 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:56:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:11,074 INFO L225 Difference]: With dead ends: 558 [2020-09-25 10:56:11,074 INFO L226 Difference]: Without dead ends: 388 [2020-09-25 10:56:11,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:56:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2020-09-25 10:56:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 342. [2020-09-25 10:56:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-09-25 10:56:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 390 transitions. [2020-09-25 10:56:11,240 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 390 transitions. Word has length 153 [2020-09-25 10:56:11,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:11,241 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 390 transitions. [2020-09-25 10:56:11,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:56:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 390 transitions. [2020-09-25 10:56:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 10:56:11,247 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:11,247 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] [2020-09-25 10:56:11,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:56:11,248 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:11,248 INFO L82 PathProgramCache]: Analyzing trace with hash 788381853, now seen corresponding path program 1 times [2020-09-25 10:56:11,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:11,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360636079] [2020-09-25 10:56:11,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:11,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:11,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:11,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:16,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:16,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 10:56:16,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:56:16,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 10:56:16,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:16,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:56:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:56:16,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:56:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:16,635 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:56:16,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:56:16,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:16,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:16,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:16,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:56:16,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:16,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-09-25 10:56:16,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:16,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:16,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:16,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:56:16,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:16,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:56:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:16,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:16,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:16,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:16,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:16,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:16,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:16,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:16,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:16,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:56:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:16,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:16,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:16,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:16,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:16,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:16,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:16,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:16,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:16,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:16,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:56:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:16,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:16,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:16,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:16,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:16,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:56:16,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:16,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:16,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:16,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:16,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:56:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:16,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:16,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:17,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:17,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:17,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:17,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:17,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:17,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:17,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:17,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:17,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:17,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:56:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:56:17,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:56:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:17,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:56:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:17,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 10:56:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:17,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:17,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:17,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:17,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:17,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:17,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:17,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:17,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:17,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:17,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:17,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:17,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 10:56:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:17,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:17,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:17,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:17,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:17,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:17,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:17,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:17,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:17,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:17,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:17,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 10:56:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:17,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:17,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:17,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:17,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:17,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:17,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:17,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:17,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:17,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:56:17,079 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360636079] [2020-09-25 10:56:17,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:56:17,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:56:17,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918009387] [2020-09-25 10:56:17,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:56:17,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:56:17,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:56:17,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:56:17,087 INFO L87 Difference]: Start difference. First operand 342 states and 390 transitions. Second operand 6 states. [2020-09-25 10:56:17,610 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:18,405 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:56:20,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:20,885 INFO L93 Difference]: Finished difference Result 1068 states and 1354 transitions. [2020-09-25 10:56:20,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 10:56:20,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2020-09-25 10:56:20,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:20,897 INFO L225 Difference]: With dead ends: 1068 [2020-09-25 10:56:20,897 INFO L226 Difference]: Without dead ends: 836 [2020-09-25 10:56:20,902 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:56:20,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-09-25 10:56:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 735. [2020-09-25 10:56:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 10:56:21,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 877 transitions. [2020-09-25 10:56:21,038 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 877 transitions. Word has length 159 [2020-09-25 10:56:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:21,039 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 877 transitions. [2020-09-25 10:56:21,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:56:21,040 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 877 transitions. [2020-09-25 10:56:21,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 10:56:21,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:21,044 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] [2020-09-25 10:56:21,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:56:21,045 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:21,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:21,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1017183402, now seen corresponding path program 1 times [2020-09-25 10:56:21,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:21,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640087743] [2020-09-25 10:56:21,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:21,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:21,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 10:56:26,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:56:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 10:56:26,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:56:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:56:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 10:56:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,416 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:56:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:56:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:56:26,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 10:56:26,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:26,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:56:26,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:56:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:26,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:56:26,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:26,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:26,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:56:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:26,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:26,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:26,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:26,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:56:26,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:56:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:26,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:56:26,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:26,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:56:26,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:56:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:26,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:56:26,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:56:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:26,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:56:26,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:56:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:56:26,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:26,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:26,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:56:26,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:26,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 10:56:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:56:26,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:56:26,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 10:56:26,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:26,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:56:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:56:26,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:26,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:56:26,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:26,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 10:56:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:26,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:26,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:26,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:26,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:26,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 10:56:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:26,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:26,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:26,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:26,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 10:56:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:56:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:56:26,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:56:26,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:56:26,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:56:26,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:56:26,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:56:26,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:56:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:56:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:56:26,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:56:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:56:26,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:56:26,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640087743] [2020-09-25 10:56:26,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:56:26,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:56:26,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018218190] [2020-09-25 10:56:26,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:56:26,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:56:26,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:56:26,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:56:26,927 INFO L87 Difference]: Start difference. First operand 735 states and 877 transitions. Second operand 6 states. [2020-09-25 10:56:27,643 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:56:28,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:56:28,547 INFO L93 Difference]: Finished difference Result 1258 states and 1560 transitions. [2020-09-25 10:56:28,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:56:28,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 10:56:28,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:56:28,555 INFO L225 Difference]: With dead ends: 1258 [2020-09-25 10:56:28,556 INFO L226 Difference]: Without dead ends: 602 [2020-09-25 10:56:28,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:56:28,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-09-25 10:56:28,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 572. [2020-09-25 10:56:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-09-25 10:56:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 634 transitions. [2020-09-25 10:56:28,663 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 634 transitions. Word has length 167 [2020-09-25 10:56:28,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:56:28,664 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 634 transitions. [2020-09-25 10:56:28,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:56:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 634 transitions. [2020-09-25 10:56:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 10:56:28,667 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:56:28,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:56:28,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:56:28,668 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:56:28,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:56:28,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1861287888, now seen corresponding path program 1 times [2020-09-25 10:56:28,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:56:28,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519924610] [2020-09-25 10:56:28,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:56:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:56:28,730 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:56:28,731 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:56:28,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:56:28,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:56:28 BoogieIcfgContainer [2020-09-25 10:56:28,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:56:28,776 INFO L168 Benchmark]: Toolchain (without parser) took 32131.30 ms. Allocated memory was 138.9 MB in the beginning and 598.7 MB in the end (delta: 459.8 MB). Free memory was 101.1 MB in the beginning and 493.0 MB in the end (delta: -391.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:28,778 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:56:28,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.76 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 171.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:28,783 INFO L168 Benchmark]: Boogie Preprocessor took 99.38 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 167.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:28,792 INFO L168 Benchmark]: RCFGBuilder took 1278.55 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 181.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:28,793 INFO L168 Benchmark]: TraceAbstraction took 30003.81 ms. Allocated memory was 233.8 MB in the beginning and 598.7 MB in the end (delta: 364.9 MB). Free memory was 179.8 MB in the beginning and 493.0 MB in the end (delta: -313.2 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:56:28,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.76 ms. Allocated memory was 138.9 MB in the beginning and 202.4 MB in the end (delta: 63.4 MB). Free memory was 100.4 MB in the beginning and 171.2 MB in the end (delta: -70.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.38 ms. Allocated memory is still 202.4 MB. Free memory was 171.2 MB in the beginning and 167.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1278.55 ms. Allocated memory was 202.4 MB in the beginning and 233.8 MB in the end (delta: 31.5 MB). Free memory was 167.1 MB in the beginning and 181.3 MB in the end (delta: -14.2 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30003.81 ms. Allocated memory was 233.8 MB in the beginning and 598.7 MB in the end (delta: 364.9 MB). Free memory was 179.8 MB in the beginning and 493.0 MB in the end (delta: -313.2 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 596 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 680 SDtfs, 1365 SDslu, 999 SDs, 0 SdLazy, 1970 SolverSat, 448 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=735occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 177 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 655 NumberOfCodeBlocks, 655 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 476 ConstructedInterpolants, 0 QuantifiedInterpolants, 202524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...