/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 --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 interpolation-heuristic=FIRST --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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:10:36,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:10:36,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:10:36,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:10:36,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:10:36,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:10:36,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:10:36,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:10:36,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:10:36,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:10:36,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:10:36,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:10:36,569 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:10:36,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:10:36,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:10:36,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:10:36,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:10:36,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:10:36,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:10:36,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:10:36,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:10:36,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:10:36,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:10:36,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:10:36,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:10:36,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:10:36,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:10:36,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:10:36,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:10:36,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:10:36,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:10:36,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:10:36,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:10:36,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:10:36,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:10:36,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:10:36,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:10:36,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:10:36,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:10:36,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:10:36,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:10:36,607 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 [2020-09-21 11:10:36,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:10:36,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:10:36,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:10:36,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:10:36,634 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:10:36,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:10:36,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:10:36,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:10:36,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:10:36,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:10:36,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:10:36,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:10:36,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:10:36,636 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:10:36,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:10:36,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:10:36,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:10:36,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:10:36,637 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:10:36,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:10:36,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:10:36,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:10:36,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:10:36,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:10:36,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:10:36,639 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:10:36,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:10:36,639 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:10:36,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:10:36,639 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:10:37,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:10:37,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:10:37,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:10:37,143 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:10:37,143 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:10:37,144 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-21 11:10:37,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e2a1ca13/117e9d5175f54151bb2be7f213540f6f/FLAGa1729745c [2020-09-21 11:10:37,878 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:10:37,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-09-21 11:10:37,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e2a1ca13/117e9d5175f54151bb2be7f213540f6f/FLAGa1729745c [2020-09-21 11:10:38,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e2a1ca13/117e9d5175f54151bb2be7f213540f6f [2020-09-21 11:10:38,130 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:10:38,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:10:38,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:38,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:10:38,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:10:38,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:38" (1/1) ... [2020-09-21 11:10:38,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:38, skipping insertion in model container [2020-09-21 11:10:38,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:10:38" (1/1) ... [2020-09-21 11:10:38,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:10:38,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:10:38,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:38,845 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:10:38,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:10:39,019 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:10:39,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39 WrapperNode [2020-09-21 11:10:39,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:10:39,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:10:39,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:10:39,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:10:39,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (1/1) ... [2020-09-21 11:10:39,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (1/1) ... [2020-09-21 11:10:39,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (1/1) ... [2020-09-21 11:10:39,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (1/1) ... [2020-09-21 11:10:39,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (1/1) ... [2020-09-21 11:10:39,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (1/1) ... [2020-09-21 11:10:39,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (1/1) ... [2020-09-21 11:10:39,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:10:39,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:10:39,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:10:39,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:10:39,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (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 [2020-09-21 11:10:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:10:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:10:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:10:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:10:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:10:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:10:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:10:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:10:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:10:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:10:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:10:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:10:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:10:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 11:10:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:10:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:39,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:10:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:10:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:10:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:10:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:10:39,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:10:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:10:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:10:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:10:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:10:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:10:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 11:10:39,216 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:10:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:10:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:10:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:10:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:10:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:10:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:10:39,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 11:10:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 11:10:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:39,218 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:10:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:10:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:10:39,218 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:10:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:10:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:10:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:10:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:10:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:10:39,220 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:10:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:10:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:10:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:10:39,221 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:10:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:10:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 11:10:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:10:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:10:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:10:39,222 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:10:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:10:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:10:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:10:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:10:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:10:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:10:39,223 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:10:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:10:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:10:39,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:10:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:10:39,225 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:10:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:10:39,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:10:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:10:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:10:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:10:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:10:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:10:39,227 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:10:39,228 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:10:39,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-21 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:10:39,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:10:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:10:39,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:10:40,347 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:10:40,347 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:10:40,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:40 BoogieIcfgContainer [2020-09-21 11:10:40,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:10:40,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:10:40,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:10:40,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:10:40,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:10:38" (1/3) ... [2020-09-21 11:10:40,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4ae8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:40, skipping insertion in model container [2020-09-21 11:10:40,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:10:39" (2/3) ... [2020-09-21 11:10:40,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e4ae8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:10:40, skipping insertion in model container [2020-09-21 11:10:40,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:10:40" (3/3) ... [2020-09-21 11:10:40,363 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-09-21 11:10:40,374 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:10:40,384 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:10:40,406 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:10:40,437 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:10:40,438 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:10:40,438 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:10:40,438 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:10:40,438 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:10:40,438 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:10:40,438 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:10:40,439 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:10:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-09-21 11:10:40,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:10:40,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:40,480 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] [2020-09-21 11:10:40,480 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:40,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:40,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1378211837, now seen corresponding path program 1 times [2020-09-21 11:10:40,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:40,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436463586] [2020-09-21 11:10:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:40,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:40,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:40,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:40,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:40,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:10:40,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:40,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:10:40,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:10:40,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:40,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,220 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:41,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:41,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,315 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,316 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,316 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,316 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:41,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:41,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:41,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,322 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,326 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:41,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:10:41,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:41,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,345 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:41,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:41,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:41,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:41,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:10:41,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,358 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,358 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,358 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,359 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:41,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:10:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,369 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:41,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:10:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:41,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:41,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:41,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:41,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:41,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:41,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:41,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:41,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:41,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:10:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:41,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [436463586] [2020-09-21 11:10:41,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:41,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:10:41,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165293352] [2020-09-21 11:10:41,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:10:41,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:41,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:10:41,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:41,477 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-09-21 11:10:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:42,728 INFO L93 Difference]: Finished difference Result 355 states and 464 transitions. [2020-09-21 11:10:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:10:42,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:10:42,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:42,750 INFO L225 Difference]: With dead ends: 355 [2020-09-21 11:10:42,750 INFO L226 Difference]: Without dead ends: 191 [2020-09-21 11:10:42,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:10:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-21 11:10:42,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 155. [2020-09-21 11:10:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-09-21 11:10:42,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2020-09-21 11:10:42,865 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 52 [2020-09-21 11:10:42,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:42,865 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2020-09-21 11:10:42,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:10:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2020-09-21 11:10:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:10:42,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:42,870 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] [2020-09-21 11:10:42,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:10:42,871 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:42,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:42,871 INFO L82 PathProgramCache]: Analyzing trace with hash 866991252, now seen corresponding path program 1 times [2020-09-21 11:10:42,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:42,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1343235407] [2020-09-21 11:10:42,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:42,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:42,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:42,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:42,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:42,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:10:42,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:42,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:10:42,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:42,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:10:42,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:10:42,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,200 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:43,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,209 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:43,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:43,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,248 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,249 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:43,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,252 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,253 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,253 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,253 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:43,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:43,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:43,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:43,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:43,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:43,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:43,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:43,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,268 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,268 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,268 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:43,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:43,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:10:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:43,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:43,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:10:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:43,278 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:43,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:43,279 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:43,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:43,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:43,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:43,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:43,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:43,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:43,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:43,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1343235407] [2020-09-21 11:10:43,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:43,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:43,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607163576] [2020-09-21 11:10:43,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:43,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:43,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:43,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:43,292 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand 4 states. [2020-09-21 11:10:43,779 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:10:44,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:44,737 INFO L93 Difference]: Finished difference Result 282 states and 347 transitions. [2020-09-21 11:10:44,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:44,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:10:44,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:44,743 INFO L225 Difference]: With dead ends: 282 [2020-09-21 11:10:44,743 INFO L226 Difference]: Without dead ends: 175 [2020-09-21 11:10:44,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:44,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-09-21 11:10:44,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 146. [2020-09-21 11:10:44,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-09-21 11:10:44,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2020-09-21 11:10:44,786 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 53 [2020-09-21 11:10:44,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:44,787 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2020-09-21 11:10:44,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:44,787 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2020-09-21 11:10:44,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:10:44,790 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:44,790 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] [2020-09-21 11:10:44,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:10:44,790 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:44,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:44,791 INFO L82 PathProgramCache]: Analyzing trace with hash 295047202, now seen corresponding path program 1 times [2020-09-21 11:10:44,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:44,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425448143] [2020-09-21 11:10:44,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,197 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:10:45,197 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,197 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,198 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:10:45,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-21 11:10:45,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:10:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:10:45,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,500 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:45,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,644 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,644 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:45,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-21 11:10:45,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:45,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:45,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:45,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:45,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:45,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:45,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:45,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:45,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:45,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:45,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,697 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,697 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,697 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,698 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:45,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:45,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,703 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,704 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:45,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:45,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:45,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:45,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:10:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,709 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,709 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,709 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:45,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:45,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:45,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:45,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:45,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,714 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,714 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:45,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:45,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:45,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:45,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:45,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:45,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:45,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:45,719 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:45,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:45,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:45,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:45,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:45,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:45,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425448143] [2020-09-21 11:10:45,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:45,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:10:45,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896425497] [2020-09-21 11:10:45,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:10:45,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:45,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:10:45,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:10:45,732 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 4 states. [2020-09-21 11:10:46,007 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:47,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:47,978 INFO L93 Difference]: Finished difference Result 433 states and 539 transitions. [2020-09-21 11:10:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:10:47,979 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:10:47,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:47,983 INFO L225 Difference]: With dead ends: 433 [2020-09-21 11:10:47,984 INFO L226 Difference]: Without dead ends: 311 [2020-09-21 11:10:47,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:10:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-09-21 11:10:48,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 262. [2020-09-21 11:10:48,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-21 11:10:48,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 317 transitions. [2020-09-21 11:10:48,080 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 317 transitions. Word has length 57 [2020-09-21 11:10:48,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:48,081 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 317 transitions. [2020-09-21 11:10:48,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:10:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 317 transitions. [2020-09-21 11:10:48,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-21 11:10:48,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:48,084 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] [2020-09-21 11:10:48,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:10:48,084 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:48,085 INFO L82 PathProgramCache]: Analyzing trace with hash 557384966, now seen corresponding path program 1 times [2020-09-21 11:10:48,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:48,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674319830] [2020-09-21 11:10:48,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:48,492 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:48,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:48,493 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:48,493 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 11:10:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-09-21 11:10:48,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:10:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 11:10:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:48,815 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:10:48,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:10:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:48,906 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:48,907 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:48,907 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:48,907 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:48,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:48,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:48,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-21 11:10:48,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:48,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:10:48,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:48,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:10:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:48,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:48,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:48,959 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:48,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:48,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:48,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:48,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:10:48,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:48,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:48,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:10:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:48,965 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:48,965 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:48,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:48,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:48,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:48,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:48,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:48,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:48,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:48,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:10:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:48,970 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:48,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:48,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:48,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:48,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:48,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:48,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:48,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:48,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:48,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:10:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:48,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:48,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:48,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:48,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:48,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:10:48,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:48,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:10:48,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:48,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:10:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:49,002 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:49,002 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:49,002 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:49,002 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:49,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:10:49,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:49,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:49,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:10:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:49,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:10:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:49,011 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:49,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:49,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:10:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:10:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:10:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:49,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:49,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:49,020 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:49,020 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:49,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:49,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:10:49,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:10:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:10:49,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:10:49,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:49,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 11:10:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:10:49,039 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:10:49,039 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:10:49,040 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:10:49,040 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:10:49,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:10:49,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:10:49,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:10:49,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:10:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:10:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:10:49,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:10:49,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:10:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:10:49,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674319830] [2020-09-21 11:10:49,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:10:49,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:10:49,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72640242] [2020-09-21 11:10:49,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:10:49,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:10:49,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:10:49,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:10:49,054 INFO L87 Difference]: Start difference. First operand 262 states and 317 transitions. Second operand 8 states. [2020-09-21 11:10:49,428 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:50,992 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:51,467 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:51,813 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:10:52,154 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:10:53,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:10:53,233 INFO L93 Difference]: Finished difference Result 814 states and 1068 transitions. [2020-09-21 11:10:53,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:10:53,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-09-21 11:10:53,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:10:53,240 INFO L225 Difference]: With dead ends: 814 [2020-09-21 11:10:53,241 INFO L226 Difference]: Without dead ends: 576 [2020-09-21 11:10:53,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:10:53,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2020-09-21 11:10:53,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 507. [2020-09-21 11:10:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-09-21 11:10:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 625 transitions. [2020-09-21 11:10:53,357 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 625 transitions. Word has length 63 [2020-09-21 11:10:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:10:53,357 INFO L479 AbstractCegarLoop]: Abstraction has 507 states and 625 transitions. [2020-09-21 11:10:53,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:10:53,358 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 625 transitions. [2020-09-21 11:10:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-21 11:10:53,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:10:53,361 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] [2020-09-21 11:10:53,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:10:53,362 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:10:53,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:10:53,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2018489452, now seen corresponding path program 1 times [2020-09-21 11:10:53,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:10:53,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907873119] [2020-09-21 11:10:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:10:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:10:53,426 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:10:53,426 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:10:53,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:10:53,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:10:53 BoogieIcfgContainer [2020-09-21 11:10:53,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:10:53,458 INFO L168 Benchmark]: Toolchain (without parser) took 15326.25 ms. Allocated memory was 141.0 MB in the beginning and 505.9 MB in the end (delta: 364.9 MB). Free memory was 101.8 MB in the beginning and 280.1 MB in the end (delta: -178.3 MB). Peak memory consumption was 186.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:53,459 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:10:53,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.54 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 101.2 MB in the beginning and 167.9 MB in the end (delta: -66.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:53,460 INFO L168 Benchmark]: Boogie Preprocessor took 93.95 ms. Allocated memory is still 201.3 MB. Free memory was 167.9 MB in the beginning and 163.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:53,461 INFO L168 Benchmark]: RCFGBuilder took 1238.18 ms. Allocated memory was 201.3 MB in the beginning and 235.9 MB in the end (delta: 34.6 MB). Free memory was 163.4 MB in the beginning and 188.2 MB in the end (delta: -24.8 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:53,462 INFO L168 Benchmark]: TraceAbstraction took 13101.11 ms. Allocated memory was 235.9 MB in the beginning and 505.9 MB in the end (delta: 270.0 MB). Free memory was 188.2 MB in the beginning and 280.1 MB in the end (delta: -91.9 MB). Peak memory consumption was 178.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:10:53,466 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 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 883.54 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 101.2 MB in the beginning and 167.9 MB in the end (delta: -66.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.95 ms. Allocated memory is still 201.3 MB. Free memory was 167.9 MB in the beginning and 163.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1238.18 ms. Allocated memory was 201.3 MB in the beginning and 235.9 MB in the end (delta: 34.6 MB). Free memory was 163.4 MB in the beginning and 188.2 MB in the end (delta: -24.8 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13101.11 ms. Allocated memory was 235.9 MB in the beginning and 505.9 MB in the end (delta: 270.0 MB). Free memory was 188.2 MB in the beginning and 280.1 MB in the end (delta: -91.9 MB). Peak memory consumption was 178.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 584 SDtfs, 766 SDslu, 268 SDs, 0 SdLazy, 1533 SolverSat, 425 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=507occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 183 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 60460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...