/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:49:38,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:49:38,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:49:38,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:49:38,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:49:38,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:49:38,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:49:38,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:49:38,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:49:38,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:49:38,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:49:38,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:49:38,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:49:38,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:49:38,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:49:38,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:49:38,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:49:38,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:49:38,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:49:38,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:49:38,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:49:38,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:49:38,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:49:38,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:49:39,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:49:39,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:49:39,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:49:39,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:49:39,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:49:39,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:49:39,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:49:39,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:49:39,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:49:39,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:49:39,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:49:39,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:49:39,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:49:39,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:49:39,017 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:49:39,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:49:39,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:49:39,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 09:49:39,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:49:39,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:49:39,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:49:39,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:49:39,086 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:49:39,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:49:39,086 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:49:39,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:49:39,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:49:39,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:49:39,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:49:39,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:49:39,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:49:39,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:49:39,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:49:39,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:49:39,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:49:39,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:49:39,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:49:39,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:49:39,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:49:39,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:49:39,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:49:39,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:49:39,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:49:39,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:49:39,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:49:39,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:49:39,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:49:39,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:49:39,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:49:39,598 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:49:39,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:49:39,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:49:39,604 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:49:39,606 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-25 09:49:39,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bec7da16/dae66d89397c4479aea7d24791aeb7ee/FLAGa8dad0ac5 [2020-09-25 09:49:40,343 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:49:40,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-09-25 09:49:40,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bec7da16/dae66d89397c4479aea7d24791aeb7ee/FLAGa8dad0ac5 [2020-09-25 09:49:40,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7bec7da16/dae66d89397c4479aea7d24791aeb7ee [2020-09-25 09:49:40,628 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:49:40,635 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:49:40,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:49:40,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:49:40,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:49:40,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:40" (1/1) ... [2020-09-25 09:49:40,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2970dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:40, skipping insertion in model container [2020-09-25 09:49:40,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:49:40" (1/1) ... [2020-09-25 09:49:40,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:49:40,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:49:41,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:49:41,270 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:49:41,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:49:41,436 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:49:41,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41 WrapperNode [2020-09-25 09:49:41,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:49:41,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:49:41,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:49:41,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:49:41,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... [2020-09-25 09:49:41,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... [2020-09-25 09:49:41,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... [2020-09-25 09:49:41,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... [2020-09-25 09:49:41,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... [2020-09-25 09:49:41,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... [2020-09-25 09:49:41,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... [2020-09-25 09:49:41,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:49:41,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:49:41,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:49:41,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:49:41,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:49:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:49:41,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:49:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:49:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:49:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:49:41,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:49:41,641 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:49:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:49:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:49:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:49:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:49:41,642 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:49:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:49:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:49:41,643 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:49:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:49:41,644 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:49:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:49:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:49:41,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:49:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 09:49:41,646 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:49:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 09:49:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:49:41,647 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:49:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:49:41,648 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:49:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:49:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:49:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:49:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 09:49:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:49:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:49:41,649 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:49:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:49:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:49:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:49:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:49:41,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:49:41,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:49:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:49:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:49:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:49:41,652 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:49:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:49:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:49:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:49:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:49:41,653 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:49:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:49:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:49:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:49:41,654 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:49:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:49:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:49:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:49:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:49:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:49:41,655 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:49:41,656 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:49:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 09:49:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:49:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:49:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:49:41,657 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:49:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:49:41,658 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:49:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 09:49:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 09:49:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 09:49:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:49:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:49:41,660 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:49:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:49:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:49:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:49:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:49:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:49:41,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:49:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:49:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:49:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:49:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:49:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:49:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:49:41,662 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:49:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:49:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:49:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:49:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:49:42,895 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:49:42,895 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:49:42,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:42 BoogieIcfgContainer [2020-09-25 09:49:42,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:49:42,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:49:42,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:49:42,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:49:42,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:49:40" (1/3) ... [2020-09-25 09:49:42,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ec41a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:42, skipping insertion in model container [2020-09-25 09:49:42,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:49:41" (2/3) ... [2020-09-25 09:49:42,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ec41a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:49:42, skipping insertion in model container [2020-09-25 09:49:42,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:49:42" (3/3) ... [2020-09-25 09:49:42,913 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-09-25 09:49:42,925 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:49:42,937 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:49:42,960 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:49:42,994 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:49:42,994 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:49:42,995 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:49:42,995 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:49:42,995 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:49:42,995 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:49:42,995 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:49:42,996 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:49:43,026 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states. [2020-09-25 09:49:43,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:49:43,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:43,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:49:43,050 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:43,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:43,060 INFO L82 PathProgramCache]: Analyzing trace with hash 396628182, now seen corresponding path program 1 times [2020-09-25 09:49:43,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:43,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561254209] [2020-09-25 09:49:43,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:43,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:43,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:45,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:48,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:48,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:49:48,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:49:48,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 09:49:48,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:48,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:49:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 09:49:48,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-25 09:49:48,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 09:49:48,922 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:49:48,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:49:48,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:49:49,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 09:49:49,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:49,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 09:49:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:49:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:49,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:49,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:49,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:49,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:49:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:49,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:49,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:49,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:49,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:49,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:49:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:49,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:49:49,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:49,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:49,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:49:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:49,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:49,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:49:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:49:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:49,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:49,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:49,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:49,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:49:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:49,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 09:49:49,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:49:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:49,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:49:49,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:49:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:49,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:49,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:49,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:49,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:49,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:49,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:49,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:49,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:49,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:49,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:49,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:49:49,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561254209] [2020-09-25 09:49:49,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:49:49,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:49:49,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223913737] [2020-09-25 09:49:49,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:49:49,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:49:49,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:49:49,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:49:49,523 INFO L87 Difference]: Start difference. First operand 322 states. Second operand 8 states. [2020-09-25 09:49:50,123 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:51,962 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:52,336 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:49:52,773 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:53,146 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:53,458 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:49:53,799 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:54,095 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:49:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:49:55,705 INFO L93 Difference]: Finished difference Result 684 states and 845 transitions. [2020-09-25 09:49:55,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:49:55,713 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:49:55,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:49:55,734 INFO L225 Difference]: With dead ends: 684 [2020-09-25 09:49:55,735 INFO L226 Difference]: Without dead ends: 473 [2020-09-25 09:49:55,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:49:55,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-25 09:49:55,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 424. [2020-09-25 09:49:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-09-25 09:49:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 482 transitions. [2020-09-25 09:49:55,910 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 482 transitions. Word has length 153 [2020-09-25 09:49:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:49:55,911 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 482 transitions. [2020-09-25 09:49:55,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:49:55,912 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 482 transitions. [2020-09-25 09:49:55,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 09:49:55,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:55,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:49:55,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:49:55,920 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:55,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:55,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1048361766, now seen corresponding path program 1 times [2020-09-25 09:49:55,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:55,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742430421] [2020-09-25 09:49:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:56,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:56,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:56,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 09:50:01,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:50:01,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 09:50:01,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 09:50:01,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 09:50:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 09:50:01,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,323 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:50:01,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:50:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:50:01,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-09-25 09:50:01,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:01,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:01,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 09:50:01,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:50:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:01,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:50:01,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:01,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:01,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:50:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:01,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:01,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:01,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:01,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:01,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:50:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:01,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:50:01,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:01,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:01,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:50:01,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:50:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:01,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:50:01,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:01,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:01,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 09:50:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:50:01,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:50:01,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:01,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:01,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:50:01,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:50:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 09:50:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:01,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:01,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:01,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 09:50:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:01,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:01,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:01,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:01,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:50:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:01,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:01,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:01,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:01,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:01,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:01,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:01,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:01,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:01,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:01,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:50:01,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742430421] [2020-09-25 09:50:01,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:50:01,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:50:01,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473419882] [2020-09-25 09:50:01,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:50:01,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:50:01,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:50:01,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:50:01,917 INFO L87 Difference]: Start difference. First operand 424 states and 482 transitions. Second operand 6 states. [2020-09-25 09:50:02,426 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:03,348 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:50:06,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:06,488 INFO L93 Difference]: Finished difference Result 1319 states and 1642 transitions. [2020-09-25 09:50:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 09:50:06,490 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 159 [2020-09-25 09:50:06,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:06,500 INFO L225 Difference]: With dead ends: 1319 [2020-09-25 09:50:06,500 INFO L226 Difference]: Without dead ends: 1005 [2020-09-25 09:50:06,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 09:50:06,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2020-09-25 09:50:06,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 887. [2020-09-25 09:50:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 887 states. [2020-09-25 09:50:06,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1047 transitions. [2020-09-25 09:50:06,651 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1047 transitions. Word has length 159 [2020-09-25 09:50:06,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:06,652 INFO L479 AbstractCegarLoop]: Abstraction has 887 states and 1047 transitions. [2020-09-25 09:50:06,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:50:06,652 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1047 transitions. [2020-09-25 09:50:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 09:50:06,658 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:06,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:50:06,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:50:06,659 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:06,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:06,660 INFO L82 PathProgramCache]: Analyzing trace with hash 479220437, now seen corresponding path program 1 times [2020-09-25 09:50:06,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:06,660 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129786487] [2020-09-25 09:50:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:06,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:06,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:07,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:09,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:11,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:11,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-25 09:50:11,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:50:11,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 09:50:11,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:11,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 09:50:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 09:50:11,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 09:50:11,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,094 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:50:12,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:50:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:50:12,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 09:50:12,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 09:50:12,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:50:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:12,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:12,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:12,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:50:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:12,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:12,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:50:12,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:50:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 09:50:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:50:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:50:12,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:50:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:12,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:50:12,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:12,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:50:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:50:12,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:50:12,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:50:12,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:50:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:50:12,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:50:12,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 09:50:12,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 09:50:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 09:50:12,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:50:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 09:50:12,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 09:50:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:50:12,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 09:50:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:50:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:50:12,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 09:50:12,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:50:12,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 09:50:12,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 09:50:12,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 09:50:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:50:12,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:50:12,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:50:12,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:50:12,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:50:12,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:50:12,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 09:50:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:12,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 09:50:12,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:12,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 09:50:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:12,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:12,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:12,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:12,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:50:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-25 09:50:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:50:12,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:50:12,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:50:12,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:50:12,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:50:12,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:50:12,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:50:12,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:50:12,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:50:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:50:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:50:12,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:50:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 09:50:12,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129786487] [2020-09-25 09:50:12,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:50:12,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:50:12,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970360841] [2020-09-25 09:50:12,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:50:12,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:50:12,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:50:12,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:50:12,796 INFO L87 Difference]: Start difference. First operand 887 states and 1047 transitions. Second operand 8 states. [2020-09-25 09:50:13,436 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:50:15,267 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:50:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:50:18,616 INFO L93 Difference]: Finished difference Result 2483 states and 3292 transitions. [2020-09-25 09:50:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 09:50:18,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2020-09-25 09:50:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:50:18,634 INFO L225 Difference]: With dead ends: 2483 [2020-09-25 09:50:18,634 INFO L226 Difference]: Without dead ends: 1706 [2020-09-25 09:50:18,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2020-09-25 09:50:18,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2020-09-25 09:50:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1282. [2020-09-25 09:50:18,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2020-09-25 09:50:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1512 transitions. [2020-09-25 09:50:18,859 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1512 transitions. Word has length 185 [2020-09-25 09:50:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:50:18,861 INFO L479 AbstractCegarLoop]: Abstraction has 1282 states and 1512 transitions. [2020-09-25 09:50:18,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:50:18,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1512 transitions. [2020-09-25 09:50:18,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 09:50:18,865 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:50:18,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:50:18,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:50:18,866 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:50:18,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:50:18,867 INFO L82 PathProgramCache]: Analyzing trace with hash 230448906, now seen corresponding path program 1 times [2020-09-25 09:50:18,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:50:18,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208189700] [2020-09-25 09:50:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:50:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:50:18,932 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:50:18,932 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:50:18,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 09:50:18,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:50:18 BoogieIcfgContainer [2020-09-25 09:50:18,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:50:18,976 INFO L168 Benchmark]: Toolchain (without parser) took 38345.56 ms. Allocated memory was 142.1 MB in the beginning and 598.2 MB in the end (delta: 456.1 MB). Free memory was 104.6 MB in the beginning and 361.0 MB in the end (delta: -256.5 MB). Peak memory consumption was 199.7 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:18,977 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 142.1 MB. Free memory was 123.6 MB in the beginning and 123.2 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-09-25 09:50:18,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.29 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 103.7 MB in the beginning and 173.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:18,981 INFO L168 Benchmark]: Boogie Preprocessor took 100.11 ms. Allocated memory is still 204.5 MB. Free memory was 173.3 MB in the beginning and 169.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:18,986 INFO L168 Benchmark]: RCFGBuilder took 1364.67 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.5 MB in the beginning and 170.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:18,987 INFO L168 Benchmark]: TraceAbstraction took 36068.59 ms. Allocated memory was 234.9 MB in the beginning and 598.2 MB in the end (delta: 363.3 MB). Free memory was 170.8 MB in the beginning and 361.0 MB in the end (delta: -190.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:50:19,002 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 142.1 MB. Free memory was 123.6 MB in the beginning and 123.2 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 799.29 ms. Allocated memory was 142.1 MB in the beginning and 204.5 MB in the end (delta: 62.4 MB). Free memory was 103.7 MB in the beginning and 173.3 MB in the end (delta: -69.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.11 ms. Allocated memory is still 204.5 MB. Free memory was 173.3 MB in the beginning and 169.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1364.67 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.5 MB in the beginning and 170.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 36068.59 ms. Allocated memory was 234.9 MB in the beginning and 598.2 MB in the end (delta: 363.3 MB). Free memory was 170.8 MB in the beginning and 361.0 MB in the end (delta: -190.2 MB). Peak memory consumption was 173.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L550] CALL waterRise() [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L550] RET waterRise() [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L578] CALL stopSystem() [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L578] RET stopSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] RET, EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L200] CALL, EXPR isPumpRunning() [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] RET, EXPR isPumpRunning() [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) [L206] CALL __automaton_fail() [L221] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 634 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 35.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 908 SDtfs, 2082 SDslu, 1407 SDs, 0 SdLazy, 3430 SolverSat, 873 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1282occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 591 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 17.8s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 227518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...