/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=0.2 --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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:57:05,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:57:05,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:57:05,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:57:05,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:57:05,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:57:05,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:57:05,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:57:05,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:57:05,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:57:05,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:57:05,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:57:05,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:57:05,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:57:05,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:57:05,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:57:05,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:57:05,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:57:05,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:57:05,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:57:05,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:57:05,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:57:05,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:57:05,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:57:05,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:57:05,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:57:05,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:57:05,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:57:05,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:57:05,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:57:05,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:57:05,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:57:05,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:57:05,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:57:05,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:57:05,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:57:05,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:57:05,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:57:05,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:57:05,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:57:05,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:57:05,400 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 10:57:05,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:57:05,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:57:05,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:57:05,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:57:05,454 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:57:05,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:57:05,454 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:57:05,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:57:05,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:57:05,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:57:05,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:57:05,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:57:05,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:57:05,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:57:05,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:57:05,457 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:57:05,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:57:05,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:57:05,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:57:05,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:57:05,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:57:05,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:57:05,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:57:05,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:57:05,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:57:05,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:57:05,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:57:05,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:57:05,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:57:05,460 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 10:57:05,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:57:05,970 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:57:05,976 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:57:05,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:57:05,979 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:57:05,980 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 10:57:06,081 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a344cb50c/adf45d117bca46d1a70fb3bfdde6a44e/FLAG65a1dfbc7 [2020-09-25 10:57:06,683 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:57:06,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-09-25 10:57:06,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a344cb50c/adf45d117bca46d1a70fb3bfdde6a44e/FLAG65a1dfbc7 [2020-09-25 10:57:06,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a344cb50c/adf45d117bca46d1a70fb3bfdde6a44e [2020-09-25 10:57:06,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:57:06,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:57:06,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:57:06,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:57:06,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:57:06,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:06" (1/1) ... [2020-09-25 10:57:06,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:06, skipping insertion in model container [2020-09-25 10:57:06,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:57:06" (1/1) ... [2020-09-25 10:57:07,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:57:07,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:57:07,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:57:07,567 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:57:07,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:57:07,727 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:57:07,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07 WrapperNode [2020-09-25 10:57:07,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:57:07,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:57:07,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:57:07,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:57:07,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... [2020-09-25 10:57:07,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... [2020-09-25 10:57:07,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... [2020-09-25 10:57:07,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... [2020-09-25 10:57:07,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... [2020-09-25 10:57:07,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... [2020-09-25 10:57:07,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... [2020-09-25 10:57:07,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:57:07,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:57:07,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:57:07,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:57:07,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:57:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:57:07,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:57:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:57:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:57:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:57:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:57:07,970 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:57:07,971 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:57:07,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:57:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:57:07,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:57:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 10:57:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:57:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:57:07,976 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:57:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:57:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:57:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:57:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:57:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:57:07,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 10:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 10:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:57:07,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:57:07,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:57:07,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:57:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:57:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:57:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:57:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:57:07,982 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:57:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 10:57:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:57:07,983 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 10:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:57:07,984 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:57:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:57:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 10:57:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:57:07,985 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:57:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:57:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 10:57:07,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 10:57:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:57:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 10:57:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:57:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:57:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:57:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:57:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:57:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:57:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:57:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:57:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:57:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:57:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:57:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:57:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:57:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:57:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:57:09,234 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:57:09,234 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:57:09,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:09 BoogieIcfgContainer [2020-09-25 10:57:09,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:57:09,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:57:09,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:57:09,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:57:09,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:57:06" (1/3) ... [2020-09-25 10:57:09,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e64e5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:09, skipping insertion in model container [2020-09-25 10:57:09,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:57:07" (2/3) ... [2020-09-25 10:57:09,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e64e5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:57:09, skipping insertion in model container [2020-09-25 10:57:09,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:57:09" (3/3) ... [2020-09-25 10:57:09,255 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-09-25 10:57:09,269 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:57:09,282 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:57:09,306 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:57:09,341 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:57:09,341 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:57:09,341 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:57:09,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:57:09,342 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:57:09,342 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:57:09,342 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:57:09,342 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:57:09,372 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states. [2020-09-25 10:57:09,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 10:57:09,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:09,395 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 10:57:09,396 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:09,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:09,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1855175087, now seen corresponding path program 1 times [2020-09-25 10:57:09,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:09,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410857800] [2020-09-25 10:57:09,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:09,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:10,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:11,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:14,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:14,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 10:57:14,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:57:14,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 10:57:14,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:14,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:57:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 10:57:14,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-25 10:57:14,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:57:15,370 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:15,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:15,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:15,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-09-25 10:57:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:15,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:57:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:15,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:15,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:15,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:15,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:57:15,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:15,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:15,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:15,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:15,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:15,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:15,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:15,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:15,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:15,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:15,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:15,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:15,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:15,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:15,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:15,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:15,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:57:15,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:15,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:15,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:15,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:15,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:15,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:15,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:15,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:57:15,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:15,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:15,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:15,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:15,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 10:57:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:15,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:15,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:15,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:15,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:15,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:15,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:15,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:15,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 10:57:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:15,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:15,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:15,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:15,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:15,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:57:15,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:15,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:15,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:57:15,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:15,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:15,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:16,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 10:57:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:16,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:16,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:16,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:16,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:16,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:16,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:16,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:16,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:16,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:16,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:16,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:16,066 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 10:57:16,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410857800] [2020-09-25 10:57:16,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:16,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:57:16,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618488058] [2020-09-25 10:57:16,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:57:16,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:16,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:57:16,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:57:16,113 INFO L87 Difference]: Start difference. First operand 331 states. Second operand 8 states. [2020-09-25 10:57:16,815 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:18,597 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:19,021 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:19,458 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:19,852 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:20,189 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:57:20,519 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:20,871 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:57:22,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:22,673 INFO L93 Difference]: Finished difference Result 715 states and 882 transitions. [2020-09-25 10:57:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 10:57:22,676 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 10:57:22,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:22,701 INFO L225 Difference]: With dead ends: 715 [2020-09-25 10:57:22,701 INFO L226 Difference]: Without dead ends: 495 [2020-09-25 10:57:22,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 10:57:22,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-25 10:57:22,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 444. [2020-09-25 10:57:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-25 10:57:22,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 506 transitions. [2020-09-25 10:57:22,875 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 506 transitions. Word has length 153 [2020-09-25 10:57:22,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:22,876 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 506 transitions. [2020-09-25 10:57:22,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:57:22,876 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 506 transitions. [2020-09-25 10:57:22,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 10:57:22,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:22,884 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:57:22,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:57:22,884 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:22,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:22,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1535639593, now seen corresponding path program 1 times [2020-09-25 10:57:22,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:22,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758340224] [2020-09-25 10:57:22,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 10:57:23,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-09-25 10:57:23,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:23,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 10:57:23,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:57:23,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:23,588 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:23,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:23,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 10:57:23,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:23,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:23,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:23,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:23,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:23,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:23,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:57:23,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:23,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:23,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:57:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:23,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:57:23,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:23,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:57:23,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:57:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:57:23,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 10:57:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 10:57:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:23,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:23,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 10:57:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:23,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:23,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:23,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:23,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 10:57:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:23,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:23,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:23,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:23,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:23,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:23,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:23,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:23,949 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 10:57:23,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758340224] [2020-09-25 10:57:23,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:23,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:57:23,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617951879] [2020-09-25 10:57:23,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:57:23,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:23,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:57:23,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:57:23,954 INFO L87 Difference]: Start difference. First operand 444 states and 506 transitions. Second operand 6 states. [2020-09-25 10:57:24,452 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:27,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:27,376 INFO L93 Difference]: Finished difference Result 1240 states and 1523 transitions. [2020-09-25 10:57:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 10:57:27,377 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 10:57:27,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:27,389 INFO L225 Difference]: With dead ends: 1240 [2020-09-25 10:57:27,389 INFO L226 Difference]: Without dead ends: 906 [2020-09-25 10:57:27,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:57:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2020-09-25 10:57:27,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 749. [2020-09-25 10:57:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 749 states. [2020-09-25 10:57:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 869 transitions. [2020-09-25 10:57:27,566 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 869 transitions. Word has length 172 [2020-09-25 10:57:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:27,567 INFO L479 AbstractCegarLoop]: Abstraction has 749 states and 869 transitions. [2020-09-25 10:57:27,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:57:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 869 transitions. [2020-09-25 10:57:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 10:57:27,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:27,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:57:27,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:57:27,573 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:27,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:27,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1849841415, now seen corresponding path program 1 times [2020-09-25 10:57:27,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:27,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957450613] [2020-09-25 10:57:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:27,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:27,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:28,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:28,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:32,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:32,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 10:57:32,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:57:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 10:57:32,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:32,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:57:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:57:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 10:57:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:32,980 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:57:32,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:57:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:57:33,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-09-25 10:57:33,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:57:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:33,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:57:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:33,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:57:33,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:33,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:57:33,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:57:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:33,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:33,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:33,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:33,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:57:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:33,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:57:33,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:57:33,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:33,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:57:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:33,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:33,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:33,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:33,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:57:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:57:33,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:57:33,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:33,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:33,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:57:33,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:33,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 10:57:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:57:33,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:57:33,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 10:57:33,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:57:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:57:33,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:57:33,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:33,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:57:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:57:33,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:57:33,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:57:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:57:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:57:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:33,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:57:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:57:33,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:57:33,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:57:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:57:33,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:57:33,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:57:33,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 10:57:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:33,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:57:33,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:33,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:33,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:57:33,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 10:57:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:33,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:57:33,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:33,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:33,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:33,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:33,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 10:57:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:57:33,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:57:33,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:57:33,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:57:33,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:57:33,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:57:33,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:57:33,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:57:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:57:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:57:33,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:57:33,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:57:33,526 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 10:57:33,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957450613] [2020-09-25 10:57:33,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:57:33,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:57:33,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304438818] [2020-09-25 10:57:33,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:57:33,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:57:33,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:57:33,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:57:33,529 INFO L87 Difference]: Start difference. First operand 749 states and 869 transitions. Second operand 7 states. [2020-09-25 10:57:34,104 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:57:35,984 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 10:57:38,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:57:38,181 INFO L93 Difference]: Finished difference Result 2078 states and 2669 transitions. [2020-09-25 10:57:38,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 10:57:38,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 172 [2020-09-25 10:57:38,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:57:38,192 INFO L225 Difference]: With dead ends: 2078 [2020-09-25 10:57:38,193 INFO L226 Difference]: Without dead ends: 1439 [2020-09-25 10:57:38,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:57:38,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2020-09-25 10:57:38,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1209. [2020-09-25 10:57:38,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-09-25 10:57:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1415 transitions. [2020-09-25 10:57:38,426 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1415 transitions. Word has length 172 [2020-09-25 10:57:38,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:57:38,426 INFO L479 AbstractCegarLoop]: Abstraction has 1209 states and 1415 transitions. [2020-09-25 10:57:38,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:57:38,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1415 transitions. [2020-09-25 10:57:38,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 10:57:38,430 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:57:38,431 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 10:57:38,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:57:38,431 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:57:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:57:38,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1544124696, now seen corresponding path program 1 times [2020-09-25 10:57:38,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:57:38,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355196329] [2020-09-25 10:57:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:57:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:57:38,504 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:57:38,504 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:57:38,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:57:38,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:57:38 BoogieIcfgContainer [2020-09-25 10:57:38,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:57:38,539 INFO L168 Benchmark]: Toolchain (without parser) took 31560.19 ms. Allocated memory was 137.9 MB in the beginning and 611.3 MB in the end (delta: 473.4 MB). Free memory was 99.9 MB in the beginning and 498.9 MB in the end (delta: -399.0 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:38,540 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 10:57:38,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.43 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 168.0 MB in the end (delta: -68.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:38,542 INFO L168 Benchmark]: Boogie Preprocessor took 132.28 ms. Allocated memory is still 200.3 MB. Free memory was 168.0 MB in the beginning and 163.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:38,543 INFO L168 Benchmark]: RCFGBuilder took 1383.55 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 163.7 MB in the beginning and 172.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:38,544 INFO L168 Benchmark]: TraceAbstraction took 29290.83 ms. Allocated memory was 230.7 MB in the beginning and 611.3 MB in the end (delta: 380.6 MB). Free memory was 172.0 MB in the beginning and 498.9 MB in the end (delta: -326.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:57:38,548 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.43 ms. Allocated memory was 137.9 MB in the beginning and 200.3 MB in the end (delta: 62.4 MB). Free memory was 99.2 MB in the beginning and 168.0 MB in the end (delta: -68.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.28 ms. Allocated memory is still 200.3 MB. Free memory was 168.0 MB in the beginning and 163.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1383.55 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 163.7 MB in the beginning and 172.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 29290.83 ms. Allocated memory was 230.7 MB in the beginning and 611.3 MB in the end (delta: 380.6 MB). Free memory was 172.0 MB in the beginning and 498.9 MB in the end (delta: -326.9 MB). Peak memory consumption was 53.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L129] int waterLevel = 1; [L130] int methaneLevelCritical = 0; [L229] int pumpRunning = 0; [L230] int systemActive = 1; [L447] int cleanupTimeShifts = 4; [L782] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int retValue_acc ; [L522] int tmp ; [L526] FCALL select_helpers() [L527] FCALL select_features() [L528] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L528] RET, EXPR valid_product() [L528] tmp = valid_product() [L530] COND TRUE \read(tmp) [L532] FCALL setup() [L533] CALL runTest() [L515] CALL test() [L545] int splverifierCounter ; [L546] int tmp ; [L547] int tmp___0 ; [L548] int tmp___1 ; [L549] int tmp___2 ; [L552] splverifierCounter = 0 [L554] COND TRUE 1 [L556] COND TRUE splverifierCounter < 4 [L562] tmp = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp) [L566] CALL waterRise() [L147] COND TRUE waterLevel < 2 [L148] waterLevel = waterLevel + 1 [L566] RET waterRise() [L572] tmp___0 = __VERIFIER_nondet_int() [L574] COND FALSE !(\read(tmp___0)) [L582] tmp___2 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___2)) [L590] tmp___1 = __VERIFIER_nondet_int() [L592] COND TRUE \read(tmp___1) [L594] CALL stopSystem() [L427] COND FALSE !(\read(pumpRunning)) [L434] systemActive = 0 [L594] RET stopSystem() [L601] CALL timeShift() [L236] COND FALSE !(\read(pumpRunning)) [L243] COND FALSE !(\read(systemActive)) [L251] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L168] int retValue_acc ; [L171] retValue_acc = methaneLevelCritical [L172] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L200] int retValue_acc ; [L203] retValue_acc = waterLevel [L204] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L360] int retValue_acc ; [L363] retValue_acc = pumpRunning [L364] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 643 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 955 SDtfs, 1948 SDslu, 1268 SDs, 0 SdLazy, 3015 SolverSat, 762 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1209occurred 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, 438 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 494 ConstructedInterpolants, 0 QuantifiedInterpolants, 205827 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...