/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_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:36:05,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:36:05,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:36:05,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:36:05,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:36:05,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:36:05,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:36:05,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:36:05,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:36:05,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:36:05,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:36:05,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:36:05,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:36:05,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:36:05,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:36:05,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:36:05,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:36:05,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:36:05,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:36:05,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:36:05,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:36:05,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:36:05,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:36:05,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:36:05,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:36:05,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:36:05,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:36:05,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:36:05,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:36:05,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:36:05,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:36:05,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:36:05,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:36:05,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:36:05,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:36:05,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:36:05,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:36:05,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:36:05,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:36:05,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:36:05,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:36:05,582 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 23:36:05,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:36:05,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:36:05,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:36:05,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:36:05,621 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:36:05,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:36:05,621 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:36:05,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:36:05,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:36:05,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:36:05,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:36:05,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:36:05,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:36:05,623 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:36:05,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:36:05,623 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:36:05,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:36:05,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:36:05,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:36:05,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:36:05,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:36:05,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:36:05,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:36:05,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:36:05,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:36:05,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:36:05,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:36:05,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:36:05,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:36:05,626 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 23:36:06,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:36:06,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:36:06,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:36:06,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:36:06,123 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:36:06,124 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-24 23:36:06,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/109100445/c5457d2e70fe491998d8ed075880b1d5/FLAGf5e433db3 [2020-09-24 23:36:06,941 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:36:06,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-09-24 23:36:06,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/109100445/c5457d2e70fe491998d8ed075880b1d5/FLAGf5e433db3 [2020-09-24 23:36:07,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/109100445/c5457d2e70fe491998d8ed075880b1d5 [2020-09-24 23:36:07,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:36:07,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:36:07,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:07,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:36:07,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:36:07,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecab255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07, skipping insertion in model container [2020-09-24 23:36:07,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:36:07,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:36:07,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:07,720 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:36:07,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:36:07,862 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:36:07,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07 WrapperNode [2020-09-24 23:36:07,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:36:07,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:36:07,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:36:07,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:36:07,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (1/1) ... [2020-09-24 23:36:07,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:36:07,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:36:07,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:36:07,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:36:07,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (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 23:36:08,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:36:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:36:08,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:36:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:36:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:36:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:36:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:36:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:36:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:36:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:36:08,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:36:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:36:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:08,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:36:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:36:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:36:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:36:08,083 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:36:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:36:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:36:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:36:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:36:08,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:36:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:36:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:36:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:36:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:36:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:36:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:36:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:36:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:36:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:36:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:36:08,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:36:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:36:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:36:08,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:36:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:36:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:36:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:36:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:36:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:36:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:36:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:36:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:36:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:36:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:36:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:36:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:36:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:36:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:36:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:36:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:36:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:36:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:36:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:36:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:36:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:36:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:36:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:36:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:36:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:36:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:36:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:36:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:36:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:36:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:36:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:36:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:36:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:36:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:36:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 23:36:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:36:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:36:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:36:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:36:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:36:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:36:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:36:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:36:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:36:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:36:09,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:36:09,348 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:36:09,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:09 BoogieIcfgContainer [2020-09-24 23:36:09,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:36:09,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:36:09,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:36:09,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:36:09,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:36:07" (1/3) ... [2020-09-24 23:36:09,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfdcae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:09, skipping insertion in model container [2020-09-24 23:36:09,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:36:07" (2/3) ... [2020-09-24 23:36:09,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cfdcae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:36:09, skipping insertion in model container [2020-09-24 23:36:09,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:36:09" (3/3) ... [2020-09-24 23:36:09,365 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-09-24 23:36:09,378 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:36:09,389 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:36:09,412 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:36:09,448 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:36:09,448 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:36:09,448 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:36:09,448 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:36:09,448 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:36:09,449 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:36:09,449 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:36:09,449 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:36:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-09-24 23:36:09,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 23:36:09,499 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:09,501 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 23:36:09,501 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:09,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:09,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1612013966, now seen corresponding path program 1 times [2020-09-24 23:36:09,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:09,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661011449] [2020-09-24 23:36:09,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:10,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:10,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:11,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:14,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:14,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 23:36:14,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:36:14,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:36:14,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:36:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:36:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:36:14,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:36:15,399 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:15,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:15,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-24 23:36:15,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:36:15,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:15,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:15,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:36:15,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:15,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:15,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:15,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:15,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:15,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:15,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:15,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:15,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:36:15,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:15,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:15,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:15,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:15,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:15,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:15,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:15,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:15,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:15,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:36:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:15,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:15,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:15,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:15,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:15,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:15,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:36:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:15,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:15,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:15,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:15,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:15,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 23:36:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:15,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:15,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:15,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:15,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:15,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:15,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:15,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:15,987 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 23:36:15,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661011449] [2020-09-24 23:36:15,990 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:15,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:36:15,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644508343] [2020-09-24 23:36:16,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:36:16,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:16,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:36:16,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:36:16,023 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 4 states. [2020-09-24 23:36:16,684 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:19,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:19,118 INFO L93 Difference]: Finished difference Result 723 states and 878 transitions. [2020-09-24 23:36:19,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:36:19,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-24 23:36:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:19,166 INFO L225 Difference]: With dead ends: 723 [2020-09-24 23:36:19,166 INFO L226 Difference]: Without dead ends: 507 [2020-09-24 23:36:19,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:36:19,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-09-24 23:36:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 436. [2020-09-24 23:36:19,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2020-09-24 23:36:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 491 transitions. [2020-09-24 23:36:19,341 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 491 transitions. Word has length 153 [2020-09-24 23:36:19,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:19,342 INFO L479 AbstractCegarLoop]: Abstraction has 436 states and 491 transitions. [2020-09-24 23:36:19,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:36:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 491 transitions. [2020-09-24 23:36:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 23:36:19,348 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:19,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:36:19,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:36:19,349 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:19,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:19,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1429121605, now seen corresponding path program 1 times [2020-09-24 23:36:19,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:19,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [977229091] [2020-09-24 23:36:19,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:19,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:19,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:19,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:19,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:24,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:24,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 23:36:24,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:36:24,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 23:36:24,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:36:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:36:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:36:24,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:24,761 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:24,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:24,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:25,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 23:36:25,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:25,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:36:25,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:25,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:25,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:25,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:25,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:25,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:25,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:25,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:25,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:25,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:36:25,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:25,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:25,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:25,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:25,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:25,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:25,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:25,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:36:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:36:25,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:36:25,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:36:25,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:36:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:25,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:36:25,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:36:25,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:36:25,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:36:25,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:36:25,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:36:25,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:36:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:25,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:25,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:25,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:25,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:36:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:25,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:25,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:25,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:25,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 23:36:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:25,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:25,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:25,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:25,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:25,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 23:36:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:25,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:25,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:25,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:25,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:25,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:25,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:25,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:25,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:25,246 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 23:36:25,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [977229091] [2020-09-24 23:36:25,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:25,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:36:25,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372999429] [2020-09-24 23:36:25,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:36:25,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:25,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:36:25,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:36:25,251 INFO L87 Difference]: Start difference. First operand 436 states and 491 transitions. Second operand 7 states. [2020-09-24 23:36:25,764 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:27,489 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:36:29,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:29,050 INFO L93 Difference]: Finished difference Result 1220 states and 1504 transitions. [2020-09-24 23:36:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:36:29,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 167 [2020-09-24 23:36:29,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:29,059 INFO L225 Difference]: With dead ends: 1220 [2020-09-24 23:36:29,059 INFO L226 Difference]: Without dead ends: 894 [2020-09-24 23:36:29,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:36:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-24 23:36:29,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 751. [2020-09-24 23:36:29,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-09-24 23:36:29,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 857 transitions. [2020-09-24 23:36:29,187 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 857 transitions. Word has length 167 [2020-09-24 23:36:29,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:29,188 INFO L479 AbstractCegarLoop]: Abstraction has 751 states and 857 transitions. [2020-09-24 23:36:29,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:36:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 857 transitions. [2020-09-24 23:36:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-24 23:36:29,193 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:29,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:36:29,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:36:29,194 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:29,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:29,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1334837787, now seen corresponding path program 1 times [2020-09-24 23:36:29,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:29,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891322593] [2020-09-24 23:36:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:29,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:31,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 23:36:31,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:31,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2150 [2020-09-24 23:36:31,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:36:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:36:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 23:36:31,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:31,775 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:36:31,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:36:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:36:32,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 23:36:32,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:36:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:32,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:36:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:32,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:32,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:32,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:32,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:36:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:32,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:32,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:32,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:32,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:32,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:36:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:32,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:36:32,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:32,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:32,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:36:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:36:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:36:32,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:36:32,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:36:32,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:32,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 23:36:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:36:32,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:36:32,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:32,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:36:32,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:32,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 23:36:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:32,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:36:32,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:36:32,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:32,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 23:36:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:32,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:36:32,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:36:32,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:36:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:36:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:32,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-24 23:36:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:36:32,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:36:32,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:36:32,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:36:32,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:36:32,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:36:32,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:36:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:36:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:36:32,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:36:32,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:36:32,375 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 23:36:32,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891322593] [2020-09-24 23:36:32,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:36:32,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:36:32,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479397731] [2020-09-24 23:36:32,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:36:32,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:36:32,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:36:32,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:36:32,379 INFO L87 Difference]: Start difference. First operand 751 states and 857 transitions. Second operand 10 states. [2020-09-24 23:36:32,889 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:34,615 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:36:35,267 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 23:36:35,600 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:36:35,923 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:36:36,237 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:36:36,575 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:36:36,896 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:36:37,411 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:36:39,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:36:39,617 INFO L93 Difference]: Finished difference Result 2101 states and 2668 transitions. [2020-09-24 23:36:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:36:39,618 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-24 23:36:39,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:36:39,631 INFO L225 Difference]: With dead ends: 2101 [2020-09-24 23:36:39,631 INFO L226 Difference]: Without dead ends: 1380 [2020-09-24 23:36:39,636 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:36:39,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-09-24 23:36:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1277. [2020-09-24 23:36:39,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1277 states. [2020-09-24 23:36:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1477 transitions. [2020-09-24 23:36:39,892 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1477 transitions. Word has length 172 [2020-09-24 23:36:39,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:36:39,893 INFO L479 AbstractCegarLoop]: Abstraction has 1277 states and 1477 transitions. [2020-09-24 23:36:39,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:36:39,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1477 transitions. [2020-09-24 23:36:39,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-24 23:36:39,898 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:36:39,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:36:39,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:36:39,899 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:36:39,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:36:39,899 INFO L82 PathProgramCache]: Analyzing trace with hash 654753658, now seen corresponding path program 1 times [2020-09-24 23:36:39,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:36:39,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1652069352] [2020-09-24 23:36:39,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:36:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 23:36:39,969 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 23:36:39,969 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 23:36:39,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:36:40,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 11:36:40 BoogieIcfgContainer [2020-09-24 23:36:40,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 23:36:40,015 INFO L168 Benchmark]: Toolchain (without parser) took 32884.51 ms. Allocated memory was 137.9 MB in the beginning and 641.7 MB in the end (delta: 503.8 MB). Free memory was 100.1 MB in the beginning and 536.0 MB in the end (delta: -436.0 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:40,016 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 23:36:40,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.29 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.5 MB in the beginning and 168.4 MB in the end (delta: -68.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:40,021 INFO L168 Benchmark]: Boogie Preprocessor took 127.60 ms. Allocated memory is still 201.3 MB. Free memory was 168.4 MB in the beginning and 164.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:40,027 INFO L168 Benchmark]: RCFGBuilder took 1363.45 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 164.1 MB in the beginning and 172.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:40,028 INFO L168 Benchmark]: TraceAbstraction took 30656.51 ms. Allocated memory was 231.7 MB in the beginning and 641.7 MB in the end (delta: 410.0 MB). Free memory was 172.0 MB in the beginning and 536.0 MB in the end (delta: -364.1 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2020-09-24 23:36:40,040 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 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 727.29 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.5 MB in the beginning and 168.4 MB in the end (delta: -68.9 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.60 ms. Allocated memory is still 201.3 MB. Free memory was 168.4 MB in the beginning and 164.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1363.45 ms. Allocated memory was 201.3 MB in the beginning and 231.7 MB in the end (delta: 30.4 MB). Free memory was 164.1 MB in the beginning and 172.0 MB in the end (delta: -7.9 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30656.51 ms. Allocated memory was 231.7 MB in the beginning and 641.7 MB in the end (delta: 410.0 MB). Free memory was 172.0 MB in the beginning and 536.0 MB in the end (delta: -364.1 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) [L577] CALL waterRise() [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 [L577] RET waterRise() [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) [L603] CALL stopSystem() [L828] COND FALSE !(\read(pumpRunning)) [L835] systemActive = 0 [L603] RET stopSystem() [L610] CALL timeShift() [L637] COND FALSE !(\read(pumpRunning)) [L644] COND FALSE !(\read(systemActive)) [L652] CALL __utac_acc__Specification3_spec__1() [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L942] CALL, EXPR isMethaneLevelCritical() [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L942] RET, EXPR isMethaneLevelCritical() [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L948] CALL, EXPR getWaterLevel() [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); [L948] RET, EXPR getWaterLevel() [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L952] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L952] RET, EXPR isPumpRunning() [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) [L958] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 930 SDtfs, 1919 SDslu, 1074 SDs, 0 SdLazy, 2731 SolverSat, 732 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1277occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 317 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.8s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 489 ConstructedInterpolants, 0 QuantifiedInterpolants, 227281 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...