/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 11:37:35,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 11:37:35,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 11:37:36,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 11:37:36,035 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 11:37:36,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 11:37:36,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 11:37:36,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 11:37:36,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 11:37:36,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 11:37:36,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 11:37:36,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 11:37:36,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 11:37:36,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 11:37:36,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 11:37:36,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 11:37:36,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 11:37:36,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 11:37:36,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 11:37:36,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 11:37:36,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 11:37:36,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 11:37:36,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 11:37:36,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 11:37:36,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 11:37:36,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 11:37:36,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 11:37:36,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 11:37:36,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 11:37:36,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 11:37:36,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 11:37:36,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 11:37:36,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 11:37:36,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 11:37:36,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 11:37:36,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 11:37:36,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 11:37:36,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 11:37:36,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 11:37:36,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 11:37:36,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 11:37:36,163 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 [2020-10-29 11:37:36,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 11:37:36,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 11:37:36,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 11:37:36,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 11:37:36,221 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 11:37:36,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 11:37:36,221 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 11:37:36,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 11:37:36,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 11:37:36,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 11:37:36,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 11:37:36,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 11:37:36,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 11:37:36,224 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 11:37:36,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 11:37:36,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 11:37:36,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 11:37:36,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 11:37:36,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 11:37:36,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 11:37:36,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 11:37:36,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 11:37:36,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 11:37:36,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 11:37:36,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 11:37:36,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 11:37:36,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 11:37:36,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 11:37:36,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 11:37:36,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 11:37:36,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 11:37:36,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 11:37:36,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 11:37:36,745 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 11:37:36,747 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 11:37:36,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-10-29 11:37:36,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/216ac90d5/5d4a444e8e5349da9af1dedf870653cc/FLAGd6b4c4cfb [2020-10-29 11:37:37,499 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 11:37:37,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product21.cil.c [2020-10-29 11:37:37,520 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/216ac90d5/5d4a444e8e5349da9af1dedf870653cc/FLAGd6b4c4cfb [2020-10-29 11:37:37,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/216ac90d5/5d4a444e8e5349da9af1dedf870653cc [2020-10-29 11:37:37,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 11:37:37,801 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 11:37:37,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 11:37:37,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 11:37:37,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 11:37:37,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:37" (1/1) ... [2020-10-29 11:37:37,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf58f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:37, skipping insertion in model container [2020-10-29 11:37:37,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 11:37:37" (1/1) ... [2020-10-29 11:37:37,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 11:37:37,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 11:37:38,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:37:38,274 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 11:37:38,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 11:37:38,417 INFO L208 MainTranslator]: Completed translation [2020-10-29 11:37:38,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38 WrapperNode [2020-10-29 11:37:38,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 11:37:38,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 11:37:38,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 11:37:38,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 11:37:38,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (1/1) ... [2020-10-29 11:37:38,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (1/1) ... [2020-10-29 11:37:38,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (1/1) ... [2020-10-29 11:37:38,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (1/1) ... [2020-10-29 11:37:38,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (1/1) ... [2020-10-29 11:37:38,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (1/1) ... [2020-10-29 11:37:38,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (1/1) ... [2020-10-29 11:37:38,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 11:37:38,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 11:37:38,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 11:37:38,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 11:37:38,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (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 [2020-10-29 11:37:38,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 11:37:38,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 11:37:38,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-29 11:37:38,630 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 11:37:38,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-29 11:37:38,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-29 11:37:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-29 11:37:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-29 11:37:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-29 11:37:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-29 11:37:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-29 11:37:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-29 11:37:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:37:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-29 11:37:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-29 11:37:38,635 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-29 11:37:38,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-29 11:37:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-29 11:37:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-29 11:37:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-29 11:37:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-29 11:37:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-29 11:37:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-29 11:37:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-29 11:37:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-29 11:37:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-29 11:37:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-29 11:37:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-29 11:37:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-29 11:37:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-29 11:37:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-29 11:37:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-29 11:37:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-29 11:37:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 11:37:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:37:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-29 11:37:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-29 11:37:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-29 11:37:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-29 11:37:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 11:37:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 11:37:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 11:37:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 11:37:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 11:37:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-29 11:37:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 11:37:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-29 11:37:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-29 11:37:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 11:37:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-29 11:37:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 11:37:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-29 11:37:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-29 11:37:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 11:37:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-29 11:37:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-29 11:37:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 11:37:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-29 11:37:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-29 11:37:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-29 11:37:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-29 11:37:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-29 11:37:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-29 11:37:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-29 11:37:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-29 11:37:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-29 11:37:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-29 11:37:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-29 11:37:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-29 11:37:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-29 11:37:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-29 11:37:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-29 11:37:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-29 11:37:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-29 11:37:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-29 11:37:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-29 11:37:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-29 11:37:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-29 11:37:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-29 11:37:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-29 11:37:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-29 11:37:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-29 11:37:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-29 11:37:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-29 11:37:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-29 11:37:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-29 11:37:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-29 11:37:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 11:37:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-29 11:37:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 11:37:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 11:37:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 11:37:41,944 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 11:37:41,945 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 11:37:41,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:41 BoogieIcfgContainer [2020-10-29 11:37:41,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 11:37:41,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 11:37:41,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 11:37:41,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 11:37:41,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 11:37:37" (1/3) ... [2020-10-29 11:37:41,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21650b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:41, skipping insertion in model container [2020-10-29 11:37:41,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 11:37:38" (2/3) ... [2020-10-29 11:37:41,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21650b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 11:37:41, skipping insertion in model container [2020-10-29 11:37:41,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 11:37:41" (3/3) ... [2020-10-29 11:37:41,956 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-10-29 11:37:41,969 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 11:37:41,975 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-29 11:37:41,988 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-29 11:37:42,017 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 11:37:42,017 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 11:37:42,017 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 11:37:42,018 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 11:37:42,018 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 11:37:42,018 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 11:37:42,018 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 11:37:42,018 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 11:37:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-10-29 11:37:42,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 11:37:42,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:42,051 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] [2020-10-29 11:37:42,052 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:37:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:42,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1508856152, now seen corresponding path program 1 times [2020-10-29 11:37:42,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:42,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980240647] [2020-10-29 11:37:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:42,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:42,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:45,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:45,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-29 11:37:45,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 11:37:45,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3090 [2020-10-29 11:37:45,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:45,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:45,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:45,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 11:37:45,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 11:37:46,024 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:46,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:46,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 11:37:46,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:46,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:46,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:46,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:46,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:46,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:46,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:46,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:46,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:46,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:46,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:46,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:46,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:46,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:46,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:46,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 11:37:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:46,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:46,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:46,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 11:37:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:46,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:46,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:46,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:46,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 11:37:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:46,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:46,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:46,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:46,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:46,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:46,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:46,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:46,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:46,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:46,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:37:46,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980240647] [2020-10-29 11:37:46,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:46,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 11:37:46,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345196733] [2020-10-29 11:37:46,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 11:37:46,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:46,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 11:37:46,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 11:37:46,282 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 4 states. [2020-10-29 11:37:46,788 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:48,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:48,171 INFO L93 Difference]: Finished difference Result 296 states and 390 transitions. [2020-10-29 11:37:48,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 11:37:48,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-29 11:37:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:48,187 INFO L225 Difference]: With dead ends: 296 [2020-10-29 11:37:48,187 INFO L226 Difference]: Without dead ends: 158 [2020-10-29 11:37:48,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 11:37:48,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-29 11:37:48,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-10-29 11:37:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-29 11:37:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-10-29 11:37:48,297 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 53 [2020-10-29 11:37:48,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:48,299 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-10-29 11:37:48,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 11:37:48,300 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-10-29 11:37:48,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 11:37:48,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:48,309 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] [2020-10-29 11:37:48,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 11:37:48,310 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:37:48,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:48,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1775039847, now seen corresponding path program 1 times [2020-10-29 11:37:48,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:48,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223085982] [2020-10-29 11:37:48,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:48,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:48,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:50,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:50,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 11:37:50,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 11:37:50,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2393 [2020-10-29 11:37:50,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:50,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 11:37:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:50,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 11:37:50,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,197 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-29 11:37:51,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 11:37:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:51,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-29 11:37:51,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:51,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 11:37:51,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:51,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 11:37:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:51,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 11:37:51,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:51,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:51,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:51,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-29 11:37:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:51,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:51,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:51,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-29 11:37:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:51,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:51,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:51,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 11:37:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:51,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:51,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 11:37:51,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 11:37:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 11:37:51,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 11:37:51,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 11:37:51,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:37:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 11:37:51,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:51,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:51,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-29 11:37:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-29 11:37:51,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:51,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:51,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 11:37:51,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 11:37:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:51,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 11:37:51,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 11:37:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:51,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 11:37:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:51,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 11:37:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 11:37:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 11:37:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 11:37:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 11:37:51,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 11:37:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 11:37:51,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 11:37:51,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 11:37:51,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 11:37:51,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 11:37:51,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 11:37:51,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 11:37:51,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 11:37:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 11:37:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 11:37:51,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 11:37:51,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 11:37:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 11:37:51,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223085982] [2020-10-29 11:37:51,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 11:37:51,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-29 11:37:51,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38394767] [2020-10-29 11:37:51,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 11:37:51,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 11:37:51,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 11:37:51,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 11:37:51,506 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 8 states. [2020-10-29 11:37:52,241 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-29 11:37:54,911 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 206 [2020-10-29 11:37:55,405 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:55,922 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-29 11:37:56,570 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-29 11:37:57,054 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-29 11:37:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 11:37:58,096 INFO L93 Difference]: Finished difference Result 402 states and 546 transitions. [2020-10-29 11:37:58,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 11:37:58,096 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-29 11:37:58,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 11:37:58,103 INFO L225 Difference]: With dead ends: 402 [2020-10-29 11:37:58,103 INFO L226 Difference]: Without dead ends: 300 [2020-10-29 11:37:58,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-29 11:37:58,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-10-29 11:37:58,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 227. [2020-10-29 11:37:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-29 11:37:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2020-10-29 11:37:58,221 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 67 [2020-10-29 11:37:58,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 11:37:58,222 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2020-10-29 11:37:58,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 11:37:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2020-10-29 11:37:58,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-29 11:37:58,227 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 11:37:58,227 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] [2020-10-29 11:37:58,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 11:37:58,227 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 11:37:58,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 11:37:58,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1856653346, now seen corresponding path program 1 times [2020-10-29 11:37:58,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 11:37:58,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541856460] [2020-10-29 11:37:58,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 11:37:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 11:37:58,281 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 11:37:58,281 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 11:37:58,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 11:37:58,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 11:37:58 BoogieIcfgContainer [2020-10-29 11:37:58,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 11:37:58,313 INFO L168 Benchmark]: Toolchain (without parser) took 20517.66 ms. Allocated memory was 151.0 MB in the beginning and 419.4 MB in the end (delta: 268.4 MB). Free memory was 124.4 MB in the beginning and 303.3 MB in the end (delta: -178.9 MB). Peak memory consumption was 91.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:58,314 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 109.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 11:37:58,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 103.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:58,315 INFO L168 Benchmark]: Boogie Preprocessor took 124.49 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 131.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:58,316 INFO L168 Benchmark]: RCFGBuilder took 3403.41 ms. Allocated memory is still 151.0 MB. Free memory was 131.8 MB in the beginning and 125.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:58,317 INFO L168 Benchmark]: TraceAbstraction took 16361.44 ms. Allocated memory was 151.0 MB in the beginning and 419.4 MB in the end (delta: 268.4 MB). Free memory was 125.5 MB in the beginning and 303.3 MB in the end (delta: -177.8 MB). Peak memory consumption was 91.1 MB. Max. memory is 8.0 GB. [2020-10-29 11:37:58,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 109.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 612.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.8 MB in the beginning and 103.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 124.49 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 131.8 MB in the end (delta: -28.7 MB). Peak memory consumption was 6.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 3403.41 ms. Allocated memory is still 151.0 MB. Free memory was 131.8 MB in the beginning and 125.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 87.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16361.44 ms. Allocated memory was 151.0 MB in the beginning and 419.4 MB in the end (delta: 268.4 MB). Free memory was 125.5 MB in the beginning and 303.3 MB in the end (delta: -177.8 MB). Peak memory consumption was 91.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L417] int pumpRunning = 0; [L418] int systemActive = 1; [L674] int waterLevel = 1; [L675] int methaneLevelCritical = 0; [L763] int cleanupTimeShifts = 4; [L839] int retValue_acc ; [L840] int tmp ; [L844] FCALL select_helpers() [L845] FCALL select_features() [L846] CALL, EXPR valid_product() [L922] int retValue_acc ; [L925] retValue_acc = 1 [L926] return (retValue_acc); [L846] RET, EXPR valid_product() [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) [L850] FCALL setup() [L851] CALL runTest() [L830] CALL test() [L609] int splverifierCounter ; [L610] int tmp ; [L611] int tmp___0 ; [L612] int tmp___1 ; [L613] int tmp___2 ; [L616] splverifierCounter = 0 [L618] COND TRUE 1 [L620] COND TRUE splverifierCounter < 4 [L626] tmp = __VERIFIER_nondet_int() [L628] COND TRUE \read(tmp) [L630] CALL waterRise() [L692] COND TRUE waterLevel < 2 [L693] waterLevel = waterLevel + 1 [L630] RET waterRise() [L636] tmp___0 = __VERIFIER_nondet_int() [L638] COND FALSE !(\read(tmp___0)) [L646] tmp___2 = __VERIFIER_nondet_int() [L648] COND TRUE \read(tmp___2) [L661] CALL timeShift() [L425] COND FALSE !(\read(pumpRunning)) [L432] COND TRUE \read(systemActive) [L434] CALL processEnvironment() [L480] int tmp ; [L483] COND FALSE !(\read(pumpRunning)) [L498] CALL processEnvironment__wrappee__lowWaterSensor() [L454] int tmp ; [L457] COND FALSE !(\read(pumpRunning)) [L472] FCALL processEnvironment__wrappee__base() [L498] RET processEnvironment__wrappee__lowWaterSensor() [L434] RET processEnvironment() [L440] CALL __utac_acc__Specification3_spec__1() [L863] int tmp ; [L864] int tmp___0 ; [L865] int tmp___1 ; [L869] CALL, EXPR isMethaneLevelCritical() [L713] int retValue_acc ; [L716] retValue_acc = methaneLevelCritical [L717] return (retValue_acc); [L869] RET, EXPR isMethaneLevelCritical() [L869] tmp = isMethaneLevelCritical() [L871] COND FALSE !(\read(tmp)) [L875] CALL, EXPR getWaterLevel() [L745] int retValue_acc ; [L748] retValue_acc = waterLevel [L749] return (retValue_acc); [L875] RET, EXPR getWaterLevel() [L875] tmp___0 = getWaterLevel() [L877] COND TRUE tmp___0 == 2 [L879] CALL, EXPR isPumpRunning() [L532] int retValue_acc ; [L535] retValue_acc = pumpRunning [L536] return (retValue_acc); [L879] RET, EXPR isPumpRunning() [L879] tmp___1 = isPumpRunning() [L881] COND FALSE !(\read(tmp___1)) [L885] CALL __automaton_fail() [L600] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product21.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 239 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 504 SDslu, 197 SDs, 0 SdLazy, 947 SolverSat, 278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred 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, 105 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 37770 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...