/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=SHALLOWEST --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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:35:31,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:35:31,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:35:31,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:35:31,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:35:31,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:35:31,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:35:31,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:35:31,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:35:31,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:35:31,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:35:31,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:35:31,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:35:31,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:35:31,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:35:31,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:35:31,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:35:31,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:35:31,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:35:31,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:35:31,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:35:31,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:35:31,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:35:31,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:35:31,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:35:31,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:35:31,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:35:31,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:35:31,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:35:31,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:35:31,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:35:31,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:35:31,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:35:31,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:35:31,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:35:31,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:35:31,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:35:31,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:35:31,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:35:31,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:35:31,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:35:31,605 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 23:35:31,645 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:35:31,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:35:31,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:35:31,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:35:31,647 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:35:31,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:35:31,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:35:31,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:35:31,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:35:31,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:35:31,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:35:31,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:35:31,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:35:31,651 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:35:31,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:35:31,651 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:35:31,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:35:31,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:35:31,652 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:35:31,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:35:31,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:35:31,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:35:31,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:35:31,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:35:31,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:35:31,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:35:31,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:35:31,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:35:31,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:35:31,656 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:35:32,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:35:32,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:35:32,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:35:32,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:35:32,154 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:35:32,156 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-24 23:35:32,250 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ea351ce/d26767d3c24e458a9bfd5bf9fe8f5872/FLAG4dd00fa78 [2020-09-24 23:35:32,938 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:35:32,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product25.cil.c [2020-09-24 23:35:32,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ea351ce/d26767d3c24e458a9bfd5bf9fe8f5872/FLAG4dd00fa78 [2020-09-24 23:35:33,140 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ea351ce/d26767d3c24e458a9bfd5bf9fe8f5872 [2020-09-24 23:35:33,156 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:35:33,163 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:35:33,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:35:33,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:35:33,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:35:33,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:33,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33, skipping insertion in model container [2020-09-24 23:35:33,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:33,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:35:33,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:35:33,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:35:33,620 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:35:33,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:35:33,917 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:35:33,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33 WrapperNode [2020-09-24 23:35:33,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:35:33,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:35:33,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:35:33,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:35:33,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:33,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:33,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:33,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:33,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:34,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:34,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (1/1) ... [2020-09-24 23:35:34,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:35:34,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:35:34,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:35:34,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:35:34,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (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 23:35:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:35:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:35:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:35:34,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:35:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:35:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:35:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:35:34,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:35:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:35:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:35:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:35:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:35:34,147 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:35:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:35:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:35:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:35:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:35:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:35:34,148 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:35:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:35:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:35:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:35:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:35:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:35:34,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:35:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:35:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:35:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:35:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:35:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:35:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:35:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:35:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:35:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:35:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:35:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:35:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:35:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:35:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:35:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:35:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:35:34,152 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:35:34,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:35:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:35:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:35:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:35:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:35:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:35:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:35:34,154 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:35:34,155 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:35:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:35:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:35:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:35:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:35:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:35:34,156 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:35:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:35:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:35:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:35:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:35:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:35:34,157 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:35:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:35:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:35:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:35:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:35:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:35:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:35:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:35:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 23:35:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:35:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:35:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:35:34,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:35:35,338 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:35:35,338 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:35:35,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:35 BoogieIcfgContainer [2020-09-24 23:35:35,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:35:35,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:35:35,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:35:35,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:35:35,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:35:33" (1/3) ... [2020-09-24 23:35:35,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6422d62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:35, skipping insertion in model container [2020-09-24 23:35:35,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:35:33" (2/3) ... [2020-09-24 23:35:35,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6422d62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:35:35, skipping insertion in model container [2020-09-24 23:35:35,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:35:35" (3/3) ... [2020-09-24 23:35:35,355 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-09-24 23:35:35,367 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:35:35,378 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:35:35,401 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:35:35,435 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:35:35,436 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:35:35,436 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:35:35,436 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:35:35,436 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:35:35,436 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:35:35,436 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:35:35,436 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:35:35,463 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-24 23:35:35,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 23:35:35,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:35,482 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 23:35:35,483 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:35,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash 984796511, now seen corresponding path program 1 times [2020-09-24 23:35:35,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:35,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797206398] [2020-09-24 23:35:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:36,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:36,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:36,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:40,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:40,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:35:40,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:35:40,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4452 [2020-09-24 23:35:40,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:40,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:35:40,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:35:40,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 23:35:40,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:35:40,883 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:35:40,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:35:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:35:41,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 365 [2020-09-24 23:35:41,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:41,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:41,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:35:41,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:41,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:35:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:41,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:41,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:41,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:41,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:41,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:41,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:35:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:41,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:41,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:41,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:41,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:41,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:35:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:41,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:35:41,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:41,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:41,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:41,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:35:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:41,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:41,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:41,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:41,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:41,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:41,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:35:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:41,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:35:41,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:41,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:41,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:41,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:35:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:41,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:35:41,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:35:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:41,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:41,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:41,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:35:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:41,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:41,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:41,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:41,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:41,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:41,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:41,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:41,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:41,566 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 23:35:41,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797206398] [2020-09-24 23:35:41,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:35:41,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:35:41,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138495847] [2020-09-24 23:35:41,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:35:41,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:35:41,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:35:41,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:35:41,602 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 8 states. [2020-09-24 23:35:42,241 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:43,660 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:43,986 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:35:44,423 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:44,802 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:35:45,146 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:45,756 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:46,075 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:35:47,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:35:47,175 INFO L93 Difference]: Finished difference Result 573 states and 709 transitions. [2020-09-24 23:35:47,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 23:35:47,177 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-24 23:35:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:35:47,198 INFO L225 Difference]: With dead ends: 573 [2020-09-24 23:35:47,198 INFO L226 Difference]: Without dead ends: 381 [2020-09-24 23:35:47,205 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 [2020-09-24 23:35:47,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-09-24 23:35:47,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 338. [2020-09-24 23:35:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-24 23:35:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 372 transitions. [2020-09-24 23:35:47,358 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 372 transitions. Word has length 153 [2020-09-24 23:35:47,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:35:47,359 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 372 transitions. [2020-09-24 23:35:47,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:35:47,359 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 372 transitions. [2020-09-24 23:35:47,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-24 23:35:47,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:47,365 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] [2020-09-24 23:35:47,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:35:47,366 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:47,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:47,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1694501889, now seen corresponding path program 1 times [2020-09-24 23:35:47,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:47,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778428303] [2020-09-24 23:35:47,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:47,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:47,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:47,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 23:35:47,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:47,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-09-24 23:35:47,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:47,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:35:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:35:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,082 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:35:48,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:35:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:35:48,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-24 23:35:48,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:48,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:35:48,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:35:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:48,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:48,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:48,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:48,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:48,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:35:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:48,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:35:48,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:35:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:48,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:35:48,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:48,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:35:48,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:35:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:35:48,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:35:48,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:48,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:35:48,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 23:35:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:35:48,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:35:48,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:35:48,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:35:48,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:35:48,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:35:48,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:35:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:48,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:35:48,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:48,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:48,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-24 23:35:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:48,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:35:48,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:48,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:48,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:48,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 23:35:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:35:48,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:35:48,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:35:48,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:35:48,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:35:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:35:48,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:35:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:35:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:35:48,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:35:48,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:35:48,541 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 23:35:48,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778428303] [2020-09-24 23:35:48,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:35:48,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:35:48,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000407233] [2020-09-24 23:35:48,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:35:48,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:35:48,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:35:48,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:35:48,546 INFO L87 Difference]: Start difference. First operand 338 states and 372 transitions. Second operand 5 states. [2020-09-24 23:35:49,053 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:35:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:35:50,140 INFO L93 Difference]: Finished difference Result 640 states and 756 transitions. [2020-09-24 23:35:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:35:50,140 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-24 23:35:50,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:35:50,147 INFO L225 Difference]: With dead ends: 640 [2020-09-24 23:35:50,147 INFO L226 Difference]: Without dead ends: 412 [2020-09-24 23:35:50,151 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 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 23:35:50,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-09-24 23:35:50,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 343. [2020-09-24 23:35:50,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-09-24 23:35:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 377 transitions. [2020-09-24 23:35:50,227 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 377 transitions. Word has length 168 [2020-09-24 23:35:50,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:35:50,228 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 377 transitions. [2020-09-24 23:35:50,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:35:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 377 transitions. [2020-09-24 23:35:50,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 23:35:50,232 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:35:50,232 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:35:50,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:35:50,232 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:35:50,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:35:50,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1373722854, now seen corresponding path program 1 times [2020-09-24 23:35:50,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:35:50,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020275178] [2020-09-24 23:35:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:35:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:35:50,309 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:35:50,309 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:35:50,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:35:50,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:35:50 BoogieIcfgContainer [2020-09-24 23:35:50,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:35:50,345 INFO L168 Benchmark]: Toolchain (without parser) took 17186.79 ms. Allocated memory was 140.0 MB in the beginning and 437.8 MB in the end (delta: 297.8 MB). Free memory was 102.1 MB in the beginning and 103.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 296.3 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:50,346 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 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 23:35:50,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 752.85 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 173.8 MB in the end (delta: -72.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:50,348 INFO L168 Benchmark]: Boogie Preprocessor took 111.44 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:50,349 INFO L168 Benchmark]: RCFGBuilder took 1313.97 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.6 MB in the beginning and 180.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:50,350 INFO L168 Benchmark]: TraceAbstraction took 14995.94 ms. Allocated memory was 237.5 MB in the beginning and 437.8 MB in the end (delta: 200.3 MB). Free memory was 180.4 MB in the beginning and 103.6 MB in the end (delta: 76.8 MB). Peak memory consumption was 277.1 MB. Max. memory is 7.1 GB. [2020-09-24 23:35:50,354 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 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 752.85 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 173.8 MB in the end (delta: -72.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.44 ms. Allocated memory is still 203.9 MB. Free memory was 173.8 MB in the beginning and 169.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1313.97 ms. Allocated memory was 203.9 MB in the beginning and 237.5 MB in the end (delta: 33.6 MB). Free memory was 169.6 MB in the beginning and 180.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14995.94 ms. Allocated memory was 237.5 MB in the beginning and 437.8 MB in the end (delta: 200.3 MB). Free memory was 180.4 MB in the beginning and 103.6 MB in the end (delta: 76.8 MB). Peak memory consumption was 277.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L458] int waterLevel = 1; [L459] int methaneLevelCritical = 0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; [L666] FCALL select_helpers() [L667] FCALL select_features() [L668] CALL, EXPR valid_product() [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L668] RET, EXPR valid_product() [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) [L672] FCALL setup() [L673] CALL runTest() [L655] CALL test() [L857] int splverifierCounter ; [L858] int tmp ; [L859] int tmp___0 ; [L860] int tmp___1 ; [L861] int tmp___2 ; [L864] splverifierCounter = 0 [L866] COND TRUE 1 [L868] COND TRUE splverifierCounter < 4 [L874] tmp = __VERIFIER_nondet_int() [L876] COND TRUE \read(tmp) [L878] CALL waterRise() [L476] COND TRUE waterLevel < 2 [L477] waterLevel = waterLevel + 1 [L878] RET waterRise() [L884] tmp___0 = __VERIFIER_nondet_int() [L886] COND FALSE !(\read(tmp___0)) [L894] tmp___2 = __VERIFIER_nondet_int() [L896] COND TRUE \read(tmp___2) [L909] CALL timeShift() [L693] COND FALSE !(\read(pumpRunning)) [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L722] int tmp ; [L725] COND FALSE !(\read(pumpRunning)) [L740] FCALL processEnvironment__wrappee__base() [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L497] int retValue_acc ; [L500] retValue_acc = methaneLevelCritical [L501] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L529] int retValue_acc ; [L532] retValue_acc = waterLevel [L533] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L792] int retValue_acc ; [L795] retValue_acc = pumpRunning [L796] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L82] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 457 SDtfs, 726 SDslu, 666 SDs, 0 SdLazy, 1387 SolverSat, 221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=343occurred 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: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 112 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 137626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...