/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_spec4_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:58:44,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:58:44,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:58:44,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:58:44,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:58:44,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:58:44,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:58:44,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:58:44,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:58:44,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:58:44,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:58:44,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:58:44,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:58:44,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:58:44,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:58:44,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:58:44,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:58:44,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:58:44,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:58:44,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:58:44,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:58:44,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:58:44,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:58:44,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:58:44,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:58:44,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:58:44,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:58:44,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:58:44,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:58:44,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:58:44,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:58:44,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:58:44,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:58:44,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:58:44,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:58:44,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:58:44,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:58:44,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:58:44,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:58:44,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:58:44,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:58:44,509 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 10:58:44,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:58:44,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:58:44,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:58:44,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:58:44,557 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:58:44,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:58:44,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:58:44,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:58:44,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:58:44,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:58:44,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:58:44,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:58:44,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:58:44,560 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:58:44,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:58:44,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:58:44,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:58:44,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:58:44,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:58:44,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:58:44,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:58:44,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:58:44,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:58:44,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:58:44,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:58:44,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:58:44,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:58:44,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:58:44,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:58:44,563 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 10:58:45,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:58:45,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:58:45,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:58:45,040 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:58:45,041 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:58:45,042 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product22.cil.c [2020-09-25 10:58:45,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e49923644/67389fcf7cf94e6b90791e9d666f16a3/FLAGf9532e940 [2020-09-25 10:58:45,723 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:58:45,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product22.cil.c [2020-09-25 10:58:45,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e49923644/67389fcf7cf94e6b90791e9d666f16a3/FLAGf9532e940 [2020-09-25 10:58:45,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e49923644/67389fcf7cf94e6b90791e9d666f16a3 [2020-09-25 10:58:46,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:58:46,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:58:46,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:58:46,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:58:46,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:58:46,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:58:45" (1/1) ... [2020-09-25 10:58:46,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46, skipping insertion in model container [2020-09-25 10:58:46,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:58:45" (1/1) ... [2020-09-25 10:58:46,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:58:46,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:58:46,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:58:46,737 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:58:46,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:58:46,873 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:58:46,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46 WrapperNode [2020-09-25 10:58:46,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:58:46,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:58:46,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:58:46,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:58:46,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (1/1) ... [2020-09-25 10:58:46,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (1/1) ... [2020-09-25 10:58:46,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (1/1) ... [2020-09-25 10:58:46,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (1/1) ... [2020-09-25 10:58:46,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (1/1) ... [2020-09-25 10:58:46,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (1/1) ... [2020-09-25 10:58:46,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (1/1) ... [2020-09-25 10:58:46,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:58:46,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:58:46,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:58:46,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:58:46,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (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 10:58:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:58:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:58:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 10:58:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 10:58:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 10:58:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 10:58:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 10:58:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 10:58:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 10:58:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 10:58:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 10:58:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 10:58:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 10:58:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 10:58:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 10:58:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 10:58:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 10:58:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 10:58:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 10:58:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 10:58:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 10:58:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 10:58:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 10:58:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 10:58:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 10:58:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 10:58:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 10:58:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 10:58:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 10:58:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 10:58:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:58:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 10:58:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:58:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 10:58:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 10:58:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 10:58:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 10:58:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 10:58:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 10:58:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:58:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:58:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 10:58:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 10:58:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 10:58:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 10:58:47,061 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 10:58:47,061 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 10:58:47,061 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 10:58:47,061 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 10:58:47,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:58:47,061 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 10:58:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 10:58:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 10:58:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 10:58:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 10:58:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 10:58:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 10:58:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 10:58:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 10:58:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 10:58:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 10:58:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 10:58:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 10:58:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 10:58:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 10:58:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 10:58:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 10:58:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 10:58:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 10:58:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 10:58:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 10:58:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:58:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 10:58:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 10:58:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:58:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:58:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 10:58:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:58:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:58:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 10:58:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:58:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 10:58:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:58:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 10:58:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 10:58:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 10:58:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 10:58:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 10:58:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 10:58:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:58:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 10:58:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:58:48,208 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:58:48,208 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 10:58:48,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:58:48 BoogieIcfgContainer [2020-09-25 10:58:48,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:58:48,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:58:48,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:58:48,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:58:48,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:58:45" (1/3) ... [2020-09-25 10:58:48,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9d80d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:58:48, skipping insertion in model container [2020-09-25 10:58:48,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:58:46" (2/3) ... [2020-09-25 10:58:48,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c9d80d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:58:48, skipping insertion in model container [2020-09-25 10:58:48,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:58:48" (3/3) ... [2020-09-25 10:58:48,226 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product22.cil.c [2020-09-25 10:58:48,238 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:58:48,251 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:58:48,274 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:58:48,306 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:58:48,306 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:58:48,306 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:58:48,306 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:58:48,306 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:58:48,306 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:58:48,307 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:58:48,307 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:58:48,338 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-25 10:58:48,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 10:58:48,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:58:48,357 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] [2020-09-25 10:58:48,358 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:58:48,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:58:48,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1066911215, now seen corresponding path program 1 times [2020-09-25 10:58:48,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:58:48,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434255535] [2020-09-25 10:58:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:58:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:48,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:49,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:50,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:51,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:53,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:53,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 10:58:53,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:58:53,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 10:58:53,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:53,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:58:53,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 10:58:53,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-25 10:58:53,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 10:58:54,494 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:58:54,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:58:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:54,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:54,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:54,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:58:54,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:54,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-25 10:58:54,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:54,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:54,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 10:58:54,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:54,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:58:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:54,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:54,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:54,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:58:54,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:54,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:58:54,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:54,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:54,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:58:54,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:54,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:58:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:54,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:54,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:54,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:58:54,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:54,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:58:54,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:54,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:54,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:58:54,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:54,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:58:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:54,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:54,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:54,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:58:54,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:54,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:58:54,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:54,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:54,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:58:54,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:54,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:58:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:54,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:54,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:54,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:58:54,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:54,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:58:54,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:54,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:58:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:58:54,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:54,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 10:58:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:54,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:54,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:54,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:58:54,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:54,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:58:54,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:54,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:58:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:58:54,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:58:54,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:55,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 10:58:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:58:55,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:58:55,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:58:55,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:58:55,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:58:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:58:55,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:58:55,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:58:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:58:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:58:55,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:58:55,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:58:55,091 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 10:58:55,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434255535] [2020-09-25 10:58:55,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:58:55,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:58:55,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105535798] [2020-09-25 10:58:55,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:58:55,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:58:55,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:58:55,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:58:55,136 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 8 states. [2020-09-25 10:58:55,816 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:58:57,047 WARN L193 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 10:58:57,560 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 10:58:57,960 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:58:58,344 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:58:58,669 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:58:59,020 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 10:58:59,324 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:01,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:01,232 INFO L93 Difference]: Finished difference Result 631 states and 771 transitions. [2020-09-25 10:59:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 10:59:01,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 10:59:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:01,257 INFO L225 Difference]: With dead ends: 631 [2020-09-25 10:59:01,257 INFO L226 Difference]: Without dead ends: 438 [2020-09-25 10:59:01,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 10:59:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2020-09-25 10:59:01,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 394. [2020-09-25 10:59:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-09-25 10:59:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 443 transitions. [2020-09-25 10:59:01,405 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 443 transitions. Word has length 142 [2020-09-25 10:59:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:01,405 INFO L479 AbstractCegarLoop]: Abstraction has 394 states and 443 transitions. [2020-09-25 10:59:01,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:59:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 443 transitions. [2020-09-25 10:59:01,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 10:59:01,411 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:01,411 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] [2020-09-25 10:59:01,412 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:59:01,412 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:01,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:01,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1159281348, now seen corresponding path program 1 times [2020-09-25 10:59:01,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:01,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843199214] [2020-09-25 10:59:01,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:01,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:01,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:02,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:06,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:06,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 10:59:06,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:59:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 10:59:06,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:06,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:59:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 10:59:06,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 10:59:06,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:06,766 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:06,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:06,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:07,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 10:59:07,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:07,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:07,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 10:59:07,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:07,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:07,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:07,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:07,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:07,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:07,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:07,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:07,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:07,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:07,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:07,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:07,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:07,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:07,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:07,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:07,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:07,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:07,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:07,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:07,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:07,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:07,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:07,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:07,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:07,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 10:59:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:07,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:07,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:59:07,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:07,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:59:07,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:07,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 10:59:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:07,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:07,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:07,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:07,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:07,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:59:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:59:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:07,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:07,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:07,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:07,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:07,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:59:07,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:07,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:59:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 10:59:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:59:07,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:07,189 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 10:59:07,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843199214] [2020-09-25 10:59:07,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:07,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:59:07,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151874562] [2020-09-25 10:59:07,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:59:07,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:07,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:59:07,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:59:07,197 INFO L87 Difference]: Start difference. First operand 394 states and 443 transitions. Second operand 5 states. [2020-09-25 10:59:07,715 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:08,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:08,743 INFO L93 Difference]: Finished difference Result 731 states and 876 transitions. [2020-09-25 10:59:08,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:59:08,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 10:59:08,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:08,756 INFO L225 Difference]: With dead ends: 731 [2020-09-25 10:59:08,756 INFO L226 Difference]: Without dead ends: 447 [2020-09-25 10:59:08,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:59:08,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-09-25 10:59:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 390. [2020-09-25 10:59:08,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2020-09-25 10:59:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 434 transitions. [2020-09-25 10:59:08,831 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 434 transitions. Word has length 148 [2020-09-25 10:59:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:08,832 INFO L479 AbstractCegarLoop]: Abstraction has 390 states and 434 transitions. [2020-09-25 10:59:08,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:59:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 434 transitions. [2020-09-25 10:59:08,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 10:59:08,835 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:59:08,835 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] [2020-09-25 10:59:08,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:59:08,836 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:59:08,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:59:08,836 INFO L82 PathProgramCache]: Analyzing trace with hash -80068979, now seen corresponding path program 1 times [2020-09-25 10:59:08,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:59:08,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641480995] [2020-09-25 10:59:08,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:59:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:08,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:09,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:09,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:10,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:13,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:13,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 10:59:13,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:59:13,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:59:13,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:13,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 10:59:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 10:59:13,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-09-25 10:59:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:59:14,287 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:14,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:59:14,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 10:59:14,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 10:59:14,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 10:59:14,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:14,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 10:59:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:14,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:14,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:14,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:14,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 10:59:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:59:14,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:14,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:14,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 10:59:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:14,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:59:14,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:14,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:14,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 10:59:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:14,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:14,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:14,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 10:59:14,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:59:14,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:59:14,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:59:14,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:14,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 10:59:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 10:59:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:59:14,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:14,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 10:59:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 10:59:14,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:59:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:59:14,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:59:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:59:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:59:14,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:14,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 10:59:14,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:59:14,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 10:59:14,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:59:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:59:14,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:59:14,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:59:14,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:59:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:59:14,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:59:14,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:14,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:14,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:59:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:14,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 10:59:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:14,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:14,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:14,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:14,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:59:14,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:14,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:59:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:15,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:15,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:15,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 10:59:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:59:15,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:59:15,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:59:15,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:59:15,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:59:15,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:59:15,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:59:15,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 10:59:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:59:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:59:15,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:59:15,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:59:15,186 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 10:59:15,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641480995] [2020-09-25 10:59:15,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:59:15,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-25 10:59:15,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556309615] [2020-09-25 10:59:15,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 10:59:15,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:59:15,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 10:59:15,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:59:15,189 INFO L87 Difference]: Start difference. First operand 390 states and 434 transitions. Second operand 13 states. [2020-09-25 10:59:15,670 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 10:59:17,178 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-09-25 10:59:17,833 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2020-09-25 10:59:18,147 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:18,458 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 10:59:18,751 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:59:19,135 INFO L93 Difference]: Finished difference Result 625 states and 744 transitions. [2020-09-25 10:59:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 10:59:19,136 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 174 [2020-09-25 10:59:19,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:59:19,138 INFO L225 Difference]: With dead ends: 625 [2020-09-25 10:59:19,138 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 10:59:19,142 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2020-09-25 10:59:19,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 10:59:19,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 10:59:19,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 10:59:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 10:59:19,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-09-25 10:59:19,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:59:19,143 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 10:59:19,143 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 10:59:19,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 10:59:19,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 10:59:19,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:59:19,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 10:59:19,329 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 9 [2020-09-25 10:59:19,497 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:19,660 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:19,832 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:19,991 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:20,143 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:20,322 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:20,490 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:20,648 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:20,818 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:20,988 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:21,152 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:21,314 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:21,482 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:21,643 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:21,803 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:21,956 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:22,103 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:22,385 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:22,652 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:22,902 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:23,168 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:23,414 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:23,562 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 10:59:23,878 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:24,138 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:24,451 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:24,712 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:24,971 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:25,231 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:25,544 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:25,859 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:26,119 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:26,279 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:26,432 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:26,579 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:26,732 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:26,884 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:27,036 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:27,183 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:27,331 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:27,483 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:27,635 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:27,787 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:27,940 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:28,087 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:28,241 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:28,389 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:28,537 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:28,689 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:28,841 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:28,994 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:29,150 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:29,299 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:29,447 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:29,599 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:29,753 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:29,907 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:30,056 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:30,210 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:30,370 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:30,519 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:30,671 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:31,122 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:31,374 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:31,526 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:31,785 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:32,042 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:32,283 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:32,540 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 10:59:32,781 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-25 10:59:32,951 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:33,104 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:33,251 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:33,402 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:33,554 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:33,707 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:33,857 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:34,006 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:34,158 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:34,312 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:34,480 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:34,632 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:34,783 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:34,935 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:35,083 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:35,239 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:35,491 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:35,652 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:35,817 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:35,969 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:36,117 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:36,269 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 10:59:36,416 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 10:59:36,864 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 10:59:37,077 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 10:59:37,283 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-09-25 10:59:37,690 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 10:59:37,915 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 10:59:38,152 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 10:59:38,493 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11